EMI CATALOG www.lairdtech.
ABOUT LAIRD Laird is a global technology business focused on enabling wireless communication and smart systems, and providing components and systems that protect electronics. Laird operates through two divisions, Wireless Systems and Performance Materials. Wireless Systems solutions include antenna systems, embedded wireless modules, telematics products and wireless automation and control solutions.
TABLE OF CONTENTS EMI INTRODUCTION 2 EMI SUMMARY 3 BOARD LEVEL SHIELDS Product Selection Guide Introduction Standard Design Shields EZ Peel™ Rigid Corner ReCovr™ ReMovl Overview FINGERSTOCK Product Selection Guide Introduction Mounting Methods Ordering Information UltraSoft® Series Recyclable Clean Copper Slot Mount Series Dual Slot Series Teardrop Series Compact PCI Symmetrical Mount Alternate Slot Series Variable Slot Mount Symmetrical (S3) Slotted Shielding Solid Top (S3) Symmetrical Slotted Shiel
TABLE OF CONTENTS EMI INTRODUCTION 2 EMI SUMMARY 3 BOARD LEVEL SHIELDS Product Selection Guide Introduction Standard Design Shields EZ Peel™ Rigid Corner ReCovr™ ReMovl Overview FINGERSTOCK Product Selection Guide Introduction Mounting Methods Ordering Information UltraSoft® Series Recyclable Clean Copper Slot Mount Series Dual Slot Series Teardrop Series Compact PCI Symmetrical Mount Alternate Slot Series Variable Slot Mount Symmetrical (S3) Slotted Shielding Solid Top (S3) Symmetrical Slotted Shiel
EMI ESSENTIALS EMI INTRODUCTION Overview of EMC/RFI Issues The phenomenon of electromagnetic interference (EMI) is familiar to virtually everyone, even if they do not understand the underlying principles. Most people have witnessed firsthand the effects of interference. To control EMI, government organizations, such as the FCC, CSA, and EEC, mandate that manufacturers may not design, produce or sell electronic equipment that jams the public broadcast services.
Fabric-Over-Foam and Conductive Foam Wire Mesh Tape Applications • Shielding or grounding of computer and telecommunication equipment seams and apertures • Covers opened infrequently for servicing (6-12 times per year) • Long lasting resiliency is ideal for highly sensitive components in permanent or semi-permanent enclosures • Consistent point-to-point contact for high shielding effectiveness over the life of the gasket • Design flexibility provides grounding and shielding solutions for I/O shielding
Fingerstock Board-Level Shields Applications • Ideal for high-cycling applications requiring frequent access • Ideal in wiping applications when gasket needs to be engaged from either the top or side • Wide variety of profiles and mounting methods accommodating applications from small handheld devices to room-size enclosures • All applications that require shielding of board- level components • Low height down to 0.
Form-In-Place Electrically Conductive Elastomers Oriented Wire Microwave Absorbers • Ideal for applications with miniature electrical housings, thin wall construction, and intricate multicomponents (i.e.
EMI ESSENTIALS BOARD LEVEL SHIELDS PRODUCT SELECTION GUIDE Corner Feature Traditional Folded BLS Design Type / Features Rigid Corner Full Drawn w/ Flange Full Drawn Zero Flange Improves Flatness by increasing torsional rigidity Most mechanically rigid, but depth attainable is material and configuration dependent Similar to Full Drawn, Tooling more complex.
EMI ESSENTIALS Unique Product Features Mounting Features ReMovl Pick & Place Bridge SMT Castellations Easy removal of pick and place bridge for post reflow inspection Thru Hole Loc Pins Size & Shape Pins, Tabs, Etc. Interior Walls Typical Material Thickness Low Height (less than 2 mm) Typical Length & Width Flatness (Size Dep) Through hole style pin that engages to underside of PCB by mechanical engagement. N/A Std Opt Opt No 0.2 Yes 10- 75 mm 0.08 Opt Std Opt Opt Opt 0.
EMI ESSENTIALS BOARD LEVEL SHIELDS Whether it’s a one-piece shield, multi-compartmental shield or precision contact, each solution Laird delivers is designed to provide maximum performance within a minimum timeline. Laird produces metal electronic components for surface mount applications in a variety of industries. Laird expertise in a number of key areas ensures that the part provided not only performs, but also optimizes applications.
EMI ESSENTIALS BOARD LEVEL SHIELDS STANDARD DESIGN SHIELDS STANDARD SURFACE MOUNT SHIELDS — ONE-PIECE Off the Shelf, On Spec and On Budget Standard surface mount shields are available in both one-piece and two-piece designs. One-piece shields offer six sides of protection, with the sixth side being the board itself. One-piece designs offer economical shielding protection where access to covered components is not necessary.
EMI ESSENTIALS BOARD LEVEL SHIELDS STANDARD DESIGN SHIELDS STANDARD SURFACE MOUNT SHIELDS — TWO-PIECE Reduce Board Damage From Inspection and Repairs Two-piece board level shields offer users the flexibility to inspect or repair shielded components without having to risk board damage by removing the entire shield or incur any tooling costs. Covers snap on and off with ease, which makes repair of the component under the shield quicker and easier and reduces board re-work.
EMI ESSENTIALS BOARD LEVEL SHIELDS EZ PEEL ™ PATENTED SHIELDS ARE SCORED TO ALLOW PEEL-OFF WHEN ACCESS IS NEEDED These patented shields have a solid top, scored to allow peel-off when access to board level components within the shield is required. The peel-off feature prevents damage to the board and components by eliminating the need for labor intensive de-soldering, which can often result in increased scrap. Peeling off the cover is accomplished by using a small starter hole for simple removal.
EMI ESSENTIALS BOARD LEVEL SHIELDS RECOVR ™ The proprietary and patented ReCovr™ product line incorporates the functionality of a two-piece shield without the need for a separate frame and cover. The shield is specially designed with a locking mechanism that allows for easy removal of the shield cover when access to board-level components is required.
EMI ESSENTIALS BOARD LEVEL SHIELDS INTRODUCTION The complexities of today's electronics pose several design challenges. Resolving EMI needs to be balanced with space, weight and production restraints. When designing a custom shielding solution, beginning in the earliest stages of the application design allows effective elimination of EMI while meeting all specifications. Laird board level shielding experts work through all phases of development.
EMI ESSENTIALS FINGERSTOCK PRODUCT SELECTION GUIDE Application Type Enclosure Shielding Gaskets & Contact Strips Continuous Length (Coil Products) Std.
EMI ESSENTIALS FINGERSTOCK Engineered metal Fingerstock solutions from Laird dates from 1938. Laird specializes in designing miniature parts of thin strip metal in quantities ranging from thousands of pieces to millions of pieces. With over 3,400 standard parts, Laird probably already has an off-theshelf solution that meets your application’s requirements.
EMI ESSENTIALS FINGERSTOCK MOUNTING METHODS UNIVERSAL MOUNTING A stainless steel mounting track is available for use with our full line of gasketing materials. Its unique design offers a secure mounting option versatile enough for use with fingerstock, ElectroNit® mesh, ElectroSeal elastomers, UltraSoft® Knit and fabric-over-foam products. 0.205 (5.207) PART NUMBER 0095-X996-00 0095-X997-00 0095-X998-00 05 07) Universal Mount WIDTH 0.310 (7.874) 0.430 (10.922) 0.600 (15.240) MATERIAL THICKNESS A = 0.
EMI ESSENTIALS FINGERSTOCK ORDERING INFORMATION Part Number Format Example: Stock Item 0097 — Unique Part No. 0520 Finish I.D. 02 — • In the above example, Laird part number 0097-0520-02 is a 97-520 RFI/EMI shielding gasket with a bright finish • When ordering UltraSoft® items, the stock item prefix will be 0098 or 0078. The above example in UltraSoft would be 0098-0520-02.
EMI ESSENTIALS FINGERSTOCK ULTRASOFT ® SERIES Series UltraSoft® fingers have been designed for communications, computers and electronic systems designers concerned with EMI compliance and lightweight enclosure designs. Available in the same full range of standard configurations, UltraSoft fingers offer designers greater flexibility and versatility than ever before—permitting more extensive use of lighter,FOLDOVER thinnerSERIES construction materials Standard No.
EMI ESSENTIALS FINGERSTOCK SLOT MOUNT SERIES Laird Slot Mount Series of beryllium copper shielding gaskets is designed for use in a wide variety of slotted applications. This economical product line is ideal for both grounding and shielding applications.
EMI ESSENTIALS FINGERSTOCK SLOT MOUNT SERIES SERIES SLOT MOUNT SERIES DIMENSIONS SERIES A B C D E H M A B C D E H M *N *O *P RECOMMENDED 77-010 0.320 0.110 0.004 0.187 0.018 0.085 0.110 0.090 0.260 0.040 (8.128) (2.794) (0.102) (4.750) (0.457) (2.159) (2.794) (2.286) (6.604) (1.016) E H M *N *O *P Q LENGTH # OF 77-011 0.600 0.220 RECOMMENDED 0.005 0.282 0.032(R)0.140APPROX. 0.180 FING. 0.140 0.520 0.070 (15.240) (7.163) (0.813) (3.556)0.169 (4.572) (3.556) (13.208) (1.778) N/A 0.085 0.
EMI ESSENTIALS FINGERSTOCK DUAL SLOT SERIES Part No. 77-075, 77-093, 77-110 TOP VIEW DUAL SLOT SERIES DIMENSIONS SERIES Approx. Length A B C D P IT C H E H S L OT M D E O P Q LENGTH # OF AP P ROX. F ING. H M N O P 77-075 0.325 0.100 0.003 0.187 0.018 0.085 0.110 0.090 0.260 0.040 (8.255) (2.54) (0.076) (4.750) (0.457) (2.159) (2.794) (2.286) (6.604) (1.016) Part No. 77-075, 77-093, 77-110 D DUAL SLOT SERIES DIMENSIONS E RIGHT VIEW TOP VIEW E A B C 77-110 0.325 0.125 0.003 0.
EMI ESSENTIALS FINGERSTOCK COMPACT PCI SYMMETRICAL MOUNT Laird Technologies offers a unique product designed to shield the front panels offers card a unique designed to shield the frontcalled panels ofLaird IEEE Technologies standard 1101.10 cages,product commonly referred to as Dot-10, of IEEE standard 1101.10 card cages, commonly referred to as Dot-10, called Compact PCI gasket.
EMI ESSENTIALS FINGERSTOCK VARIABLE SLOT MOUNT Laird introduces Variable Slot Mount shielding, which eliminates the use of long slots while still utilizing the easy installation method of slot mount shielding. Fingers are removed from the strip in areas where a mounting slot is not present. The Variable Slot Mount shielding strips can be customized to any patterned series of slots.
EMI ESSENTIALS FINGERSTOCK SYMMETRICAL (S 3 ) SLOTTED SHIELDING RIVET MOUNT 97-952 97-951 97-955 97-954 97-958 97-957 Strips with Sticky Fingers® and Rivet Mounts exhibit typical attenuation >100 dB for a 100 MHz plane wave. S3 SERIES — STICKY FINGERS SERIES A MIN. 0.620 (15.748) B C D E K L 0.220 (5.588) 0.004 (0.102) 0.375 (9.525) 0.030 (0.762) 0.760 (19.304) 0.100 (2.540) APPROX. LENGTH 15.000 (381.000) 97-954 0.450 (11.430) 0.140 (3.556) 0.003 (0.076) 0.250 (6.350) 0.022 (0.
EMI ESSENTIALS FINGERSTOCK SOLID TOP (S 3 ) SYMMETRICAL SLOTTED SHIELDING GASKET Laird offers their Solid Top Symmetrical Slotted Shielding Gaskets. This product is uniquely designed for those applications where a lid or cover is closed using a sliding motion to complete the closure. The solid top design allows the cover to slide either perpendicularly or parallel to the fingerstock without snagging or damaging the gasket.
EMI ESSENTIALS FINGERSTOCK CLIP-ON SYMMETRICAL SHIELDING The 97-636 and 97-637 Clip-On Symmetrical Shielding Gaskets have been designed to function equally well in applications requiring sliding movement or direct compression.
EMI ESSENTIALS FINGERSTOCK NO SNAG GASKET Part No. 77-079, 83, 84, 85, 86, 91, 92 Part No. 77-012, 14, 33, 78, 81, 82 Laird No Snag Series shielding gasketsgaskets offer the a low Laird Technologies No Snag Series shielding offerdesigner the designer a low ® compression, snag design. Provided withFingers Sticky® Fingers selfself-adhesive tape, compression, nono snag design. Provided with Sticky these beryllium gaskets provide easy and secureprovide mounting.
EMI ESSENTIALS FINGERSTOCK ALL-PURPOSE SERIES Right angle Strips available ® versions available with Magnefil Right angle Strips available ® versions available with Magnefil Strips supplied with teardrop 97-537 97-545 97-536 97-537 97-545 97-536 97-538 97-535 97-548 97-538 97-535 97-548 These versatile gaskets are made from highperformance beryllium copper with Sticky Fingers® self-adhesive backing.
EMI ESSENTIALS FINGERSTOCK CLIP-ON SERIES 97-618 97-621 97-622 97-623 97-603 97-604 97-605 97-606 97-607 97-603 97-604 97-605 97-606 97-607 97-628 97-629 97-630 97-628 97-629 97-630 97-631 97-632 97-633 97-634 97-610 97-614 97-611 97-613 97-615 97-627 97-612 97-610 97-614 97-611 97-640 97-613 97-615 97-627 97-612 97-645 97-646 97-640 97-645 97-646 97-631 97-632 97-633 97-634 This series from Laird is designed for use where high temperature or other design considerations preclude the use of adh
EMI ESSENTIALS FINGERSTOCK CLIP-ON SERIES CLIP-ON SERIES DIMENSIONS VIEW SERIES A B 2 97-603 0.380 (9.652) 2 97-604 2 F G H NO LANCE SQUARE LANCE APPROX. NL SQ LENGTH GRIP-TITE ® SNAP-TITE® LANCE LOCATIONS LANCE TO BODY STYLE “T” LANCE “D” LANCE DIMENSIONS LANCE DIMS. GT ST I J K SLOT SOL. C D E 0.200 (5.080) 0.100 (2.540) 0.330 (8.382) 0.005 (0.127) 0.250 (6.350) 0.040 (1.016) 0.060 16.000 (1.524) (406.400) — — — — — — X — 0.250 (6.350) 0.099 (2.515) 0.500 (12.
EMI ESSENTIALS FINGERSTOCK LOW PROFILE HOOK-ON GASKET 77-071/77-072 77-071/77-072 FIGURE 1 77-071/77-072 Shielding Effectiveness Per MIL-STD-285 (Mod.) 77-071/77-072 FIGURE 1 (60% Compression) Shielding Effectiveness Per MIL-STD-285 (Mod.) (60% Compression) 130 1201 FIGURE 130 1 FIGURE 110 Shielding Effectiveness PerPer MIL-STD-285 (Mod.) Shielding Effectiveness MIL-STD-285 (Mod.
EMI ESSENTIALS FINGERSTOCK LARGE ENCLOSURE SERIES These standard beryllium copper contact gaskets offer ideal RFI/EMI shielding These standard beryllium copper contact gaskets offer ideal RFI/EMI beryllium copperincontact gaskets offer idealtrailers, RFI/EMIcomputers shielding ofThese doorsstandard and movable components electronic shielded rooms, doors and movable components electronic ofshielding doors and of movable components in electronic shieldedinrooms, trailers,shielded computers and communication
EMI ESSENTIALS FINGERSTOCK FOLDOVER SERIES ® 97-515 97-515 97-521 97-541 97-542 97-515 97-521 Patent No.
(6.350) B (2.032) (0.076) (4.775) (0.457) (1.524) (1.270) (406.400) (7.
DETAIL OF RIGHT ANGLE 97-558 DETAIL OF RIGHT ANGLE 97-551 97-569 EMI ESSENTIALS FINGERSTOCK TWIST SERIES DETAIL OF RIGHT ANGLE 97-558 DETAIL OF RIGHT ANGLE 97-551 97-550 97-551 97-555 97-556 97-558 97-559 97-569 97-560 97-567 97-561 Adhesive-mounted beryllium copper contact strips with scientific twist design offer narrow electronic gaskets for TWIST SERIES Adhesive-mounted beryllium copper contact strips with scientific twist design offer narrow electronic SERIES A B C D E H general APPROX.
60 100 40 80 20 60 0.030 (0.762) 40 0 10K 100K 1M EMI ESSENTIALS 0 40 10K 100K 10M 100M 10M 100M 1G 0.030 (0.762) FINGERSTOCK CARD GUIDE CLIP-ON 0 Frequency (Hz) 10K 100K 1M 10M 100M 0.060 (1.524) 0.115 (2.921) 34° 34° 0.090 (2.286) 97-973 0.120 (3.048) 0.360 (9.144) 0.020 (0.508) VIEW A-A 0.035 (0.889) 0.208 (5.283) 1G Frequency (Hz) VIEW A-A 97-973 97-973 Compression Deflection Part No: 97-973-17 0.6 0.25 97-973 0.
EMI ESSENTIALS FINGERSTOCK CLIP-ON PERPENDICULAR GROUNDING STRIP Laird offers the first clip-on design which allows grounding to occur between perpendicular surfaces. • Unique finger extension provides grounding from card or motherboard to a backplane housing • Finger height provides wide operating range • Wide clip-on area with “D” lance gives additional reliable retention • Available in strip lengths up to 12.000 in. (304.800 mm) • Available in a wide variety of plating finishes, see page 17.
10K 100K 10µΩ EMI ESSENTIALS 10nΩ 10K 100K 100µΩ 1µΩ 100nΩ 10nΩ 1M 10M Frequency (Hz) 1M 10M Frequency (Hz) 100M 100M 1087 5 1G 10 1086 1G 107 108 1M 10M Frequency (Hz) 100M 103 104 10 5 106 107 1G 108 0.788 0.060 R (20.015) (1.524) 0.176 (4.470) 0.060 R 0.176 (1.524) (4.470) C onduc tanc e (ohms p 100K C onduc taCnocned( 1mΩ 10K 10nΩ 1µΩ 100nΩ Impedanc e (one fin ImpedancI e 10nΩ 100nΩ 10µΩ 0.176 (4.470) (0.762) (0.381) (7.493) (0.889) 0.120 R 0.030 R (3.048)0.015 (0.762) (0.
FIGURE F EMI ESSENTIALS 0.172 Pitch (4.369) 0.047 Slot (1.194) FINGERSTOCK CUSTOM STAMPING 0.157 Pitch (3.988) 0.120 (3.048) 0.310 (7.874) 0.040 Slot (1.016) 0.200 R. (5.108) 90° 0.940 (23.876) 0.906 (23.012) 0.660 (16.764) 0.020 R. (0.508) ^ Contips ® available L Laird's extensive product line solves hundreds of EMC problems. But each customer problem is unique. One of our standard products may not precisely meet your needs.
(4.572) 0.810 (20.574) 0.198 (5.029) 0.250 (6.350) 0.069 (1.753) EMI ESSENTIALS 0.115 (2.921) 0.210 (5.334) 0.062 (1.575) 0.606 Dia. (15.392) 0.500 (12.700) 1.101 (27.965) 1.277 (32.436) 0.150 (3.810) FINGERSTOCK USB CONNECTOR *97-725 is available without the formed bends or with bends of varying sizes to accommodate your requirements for a variety of connector sizes. Laird offers the USB (Universal Serial Bus) Type B connector gasket.
EMI ESSENTIALS FINGERSTOCK “D” CONNECTOR SHIELDING/SLOTTED “D” “D” CONNECTOR SHIELDING Laird offers the “D” Connector Shield Series for grounding and shielding of D Subminiature Connectors. This series is designed to fit most commonly used 9 pin through 68 pin connectors.
EMI ESSENTIALS PRECISION STAMPED METALS STANDARD PRECISION CONTACTS STANDARD PRECISION ELECTRONIC CONTACTS Laird standard precision electronic contacts ground, carry current and signals, and interconnect boards and devices. A wide variety of plating options allow for the maximum electrical current carrying performance. An array of designs in a standard format are ready for production. Installed costs are lower with our tape and reel.
EMI ESSENTIALS PRECISION STAMPED METALS STANDARD PRECISION CONTACTS STANDARD PRECISION ELECTRONIC CONTACTS STANDARD PRECISION ELECTRONIC CONTACTS MATERIAL VARIATIONS PART NUMBER MATERIAL AVAILABLE PLATINGS TYPICAL APPLICATIONS PARTS PER REEL PART NUMBER MATERIAL AVAILABLE PLATINGS TYPICAL APPLICATIONS PARTS PER REEL BMI-C-001 0,10 mm BeCu Gold Grounding, energy carrying 3000 BMI-C-001 0,10 mm BeCu Gold Grounding, energy carrying 3000 BMI-C-001-SN 0,10 mm BeCu Tin Grounding, energy
EMI ESSENTIALS PRECISION STAMPED METALS CUSTOM DESIGN CUSTOM PRECISION ELECTRONIC CONTACTS GAIN MAXIMUM ELECTRICAL AND CARRYING PERFORMANCE From concept to placement, Laird has the expertise to deliver custom precision surface mount contacts. Using the latest computer simulation techniques, Laird provides properly designed contacts that ground, carry current and signals, and interconnect boards and devices.
EMI ESSENTIALS PRECISION STAMPED METALS CUSTOM STAMPING Our CAD helps you fine-tune your initial designs. Our finite element analysis (FEA) simulates the performance of that design under actual working conditions. Our CNC equipment helps produce precisely fabricated samples. Our optical gauging inspection system ensures that the latest measurement technology is used to measure your parts. Computer-programmable high-speed Bruderer Our CAD helps you fine-tune your initial designs.
EMI ESSENTIALS METALS GALVANIC COMPATIBILITY CHART For harsh environments (presence of fair to good ionic conductors), all metals in contact with each other should be no more than one level of the chart apart to minimize corrosion. This is shown by the dark blue regions of the plating bar chart under specific platings. Outdoor applications, high humidity and salt air fall into this category. For normal environments (storage in warehouses or non-temperature/humidity-controlled environments, etc.
EMI ESSENTIALS COMPATIBLE SURFACE FINISHES FOR LAIRD PRODUCTS GOLD RHODIUM SILVER NICKEL BERYLLIUM TIN SMALL SURFACE CATHODIC ANODIC LARGE SURFACE 47 www.lairdtech.
EMI ESSENTIALS VENT PANELS Laird has various vent panels to fit specific application needs. Laird shielding ventilation panels are available in a wide array of materials, platings and mounting configurations. Vent panels offer designers new versatility to meet EMI, environmental and mechanical system requirements. When custom designs are needed, Laird engineering staff helps construct efficiencies in performance, cost and manufacturability from the very beginning stages of the application. 48 www.
EMI ESSENTIALS VENT PANELS PANELS ™ MAXAIR MaxAirTM COMBINING EMI INNOVATION AND COST EFFICIENCY Laird's patented MaxAir vent panel product line provides an innovative cost effective approach for providing increased airflow and EMI protection for telecommunications hardware equipment such as fans and server racks. This metallized polycarbonate honeycomb material provides a rigid medium eliminating the need for costly frame designs.
EMI ESSENTIALS VENT PANELS ™ EMI/DUST FILTRATION PANEL ELECTRO-AIR TM Electro-Air EMI/Dust Filtration Panel Maximum Protection/Minimum Impedance Laird has a proven solution for air filtration and EMI shielding in electronic enclosures. The Electro-Air EMI/dust filtration panel, consisting of layered, woven, and crimped wire mesh plus filtering media (as needed), captures microscopic airborne contaminants while providing minimal air flow impedance.
EMI ESSENTIALS VENT PANELS ™ ELECTROVENT TM ElectroVent Laird offers ElectroVent EMI shielding ventilation panels. Available in a wide choice of materials, platings, and mounting configurations, ElectroVent offers the designer new versatility to meet EMI, environmental and mechanical system requirements. AVAILABLE PROTECTIVE GRILLE For high traffic areas, all EMI ventilation panels are available with grille installed to protect honeycomb from damage that could impede airflow or shielding effectiveness.
EMI ESSENTIALS FABRIC-OVER FOAM PRODUCT SELECTION GUIDE Material Type Metal Plating Product Type Base Material / Fabric Type Taffeta Ripstop Mesh Non-Woven NiCu Plain Weave Good Shielding Common Use Ripstop Weave Good Shielding High Abrasion Knitted Breathability Bonded Fiber High Shielding Sturdy/Firm 86726 86785 86203 86205 87580 86750 X X X X X X X X X X X X PNW X X NNW X X DN05A DT17A X X 51H 51L 501 51G 51Y T1G R1G 221 X X X X X X X X HIK X HIL X Material Designation FABRI
EMI ESSENTIALS Material Thickness Foam PSA (mm) Specifications Temperature UL Flame Application Specific Compression Set Application Differentiation Color CABLE WRAPPING GENERAL USE CABLE WRAPPING GENERAL USE UL REQUIRED THIN APPLICATIONS HIGH SHIELDING/ THICK HIGH SHIELDING/ THICK DOUBLE SIDED DOUBLE SIDED NICKEL NICKEL BLACK BLACK GRAY OR BLACK NICKEL STANDARD STANDARD NON-UL RIPSTOP FABRIC MESH / BREATHABLE LOWER COMPRESS HIGHER TEMP MOISTURE / FIRM COMPLEX / 'C' SHAPES COMPLEX / 'C' SHAPES NO
EMI ESSENTIALS FABRIC-OVER FOAM METALLIZED SHIELDING GASKETS Laird is a fully integrated manufacturer of profile and Input/ Output (I/O) EMI shielding gaskets. The metallized FabricOver-Foam product line has been expanded greatly due to our committed efforts in new product development and meeting or surpassing regulatory requirements. This catalog is designed to provide helpful information to engineers on our expanded product line.
EMI ESSENTIALS FABRIC-OVER FOAM METALLIZED SHIELDING GASKETS BENEFITS OF FABRIC-OVER-FOAM GASKETS • Shielding effectiveness of >100 dB across a wide spectrum of frequencies (see figure 2). • Prototype samples can be provided quickly utilizing laser technology, CAD/CAM equipment, and customer supplied drawings in DWG®, DXF®, IGS, PRT®, DRW®, STP®, and CT® file formats. • Extremely low compression forces allow for use of lighter materials (see figure 1). • Low Surface Resistivity as low as 0.
EMI ESSENTIALS ECOGREEN ENVIRONMENTALLY FRIENDLY FABRIC-OVER-FOAM SHIELDING GASKETS TM Laird is pleased to introduce the next generation in RoHS-compliant EMI shielding technology. While Laird Fabric-Over-Foam EMI gaskets are RoHS compliant, we are proactively strengthening our compliancy by engineering halogen-free EcoGreenTM shields.
EMI ESSENTIALS FABRIC-OVER-FOAM I/O GASKET SELECTION GUIDE Part Number Example: Digits: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 4 6 9 3 - PA - 5 1 H - 0 1 2 0 0 Profile Shape & Size Attachment & Part Specific Details Core Materials Flame Rating Fabric Cover Part Length 5 = Soft Urethane 0 = Not Rated 8, K, B = Ni/Cu Ripstop R = High Temp 1 = UL V0 Y, 6 = Ni/Cu Knit Mesh T = Low Compression H = Ni/Cu Taffeta Set / Force L = Black Ni/Cu Taffeta 0 = No Foam H = Sculpted Foam / 'C' Shapes * Certain combinati
EMI ESSENTIALS FABRIC-OVER-FOAM PROFILE SELECTION GUIDE D-SHAPED W H Profile Number inches (mm) H inches (mm) W 4584 0.040 (1,0) 0.150 (3,8) 4320 0.050 (1,3) 0.140 (3,6) 4541 0.050 (1,3) 0.250 (6,4) 4358 0.060 (1,5) 0.098 (2,5) 4184 0.060 (1,5) 0.150 (3,8) 4548 0.060 (1,5) 0.250 (6,4) 4356 0.070 (1,8) 0.180 (4,6) 4052 0.080 (2,0) 0.080 (2,0) 4283 0.080 (2,0) 0.157 (4,0) 4181 0.080 (2,0) 0.394 (10,0) 4053 0.090 (2,3) 0.090 (2,3) 4912 0.090 (2,3) 0.150 (3,8) 4375 0.
EMI ESSENTIALS FABRIC-OVER-FOAM PROFILE SELECTION GUIDE Rectangle Shaped Continued 4361 inches (mm) H 0.080 (2,0) inches (mm) W 0.900 (22,9) 4055 inches (mm) H 0.157 (4,0) 4325 0.080 (2,0) 0.984 (25,0) 4516 0.157 (4,0) 0.354 (9,0) 4194 0.080 (2,0) 1.126 (28,6) 4791 0.157 (4,0) 0.394 (10,0) 4389 0.080 (2,0) 1.259 (32,0) 4098 0.157 (4,0) 0.591 (15,0) 4315 0.080 (2,0) 1.345 (34,2) 4704 0.158 (4,0) 0.236 (6,0) 4531 0.080 (2,0) 1.550 (39,4) 4241 0.160 (4,1) 0.
EMI ESSENTIALS FABRIC-OVER-FOAM PROFILE SELECTION GUIDE SQUARE SHAPED 4520 inches (mm) H 0.080 (2,0) inches (mm) W 0.080 (2,0) 4046 0.118 (3,0) 0.118 (3,0) 4522 0.157 (4,0) 0.157 (4,0) 4212 0.195 (5,0) 0.195 (5,0) 4048 0.236 (6,0) 0.236 (6,0) 4049 0.250 (6,4) 0.250 (6,4) 4695 0.375 (9,5) 0.375 (9,5) 4206 0.395 (10,0) 0.395 (10,0) 4084 0.500 (12,7) 0.500 (12,7) 4204 0.670 (17,0) 0.670 (17,0) 4517 0.750 (19,1) 0.750 (19,1) 4089 0.787 (20,0) 0.
EMI ESSENTIALS FABRIC-OVER-FOAM PROFILE SELECTION GUIDE DOUBLE D-SHAPED W Profile Number inches (mm) H inches (mm) W 4299 0.110 (2,8) 0.382 (9,7) H L-SHAPED Profile Number L1 inches (mm) H inches (mm) W inches (mm) L1 inches (mm) L2 4469 0.216 (5,5) 0.354 (9,0) .138 (3,5) .118 (3,0) 4534 0.591 (15,0) 0.551 (14,0) .098 (2,5) .126 (3,2) H L2 W ROUND SHAPED H Profile Number inches (mm) H inches (mm) W 4201 0.100 (2,5) 0.100 (2,5) 4372 0.125 (3,2) 0.
EMI ESSENTIALS FABRIC-OVER-FOAM I/O SELECTION GUIDE DIVERSE ASSEMBLY OPTIONS Multiple attachment options provide a variety of ways to install critical EMI products. Pressure Sensitive Adhesive (PSA) has been complemented with the Easy Peel ® release liner and rigid clip configurations. These mechanical attachment options enable you to take advantage of existing tooling on doors and enclosures as well as offer alternate attachment methods to better meet design requirements.
EMI ESSENTIALS FABRIC-OVER-FOAM I/O SELECTION GUIDE The following pages show examples of standard I/O gaskets used in computer and telecommunication applications. If you have different requirements, the Engineering Department will design gaskets to the specifications you supply. Laird will design your I/O from a fully detailed print, drawing file, or the actual panel to which the gasket is to be applied. I/O GASKET TOLERANCES Height tolerance ± .020" (±0.5 mm) Width tolerance ± .020" (±0.
EMI ESSENTIALS FABRIC-OVER-FOAM I/O GASKET SELECTION GUIDE SCSI + 50 PIN CONNECTOR, PART NUMBER 4164-FE Usage: Peripheral, Hard Disk, CD-ROM D-SUB CONNECTOR SERIES Laird Part number D-Sub Pins D-Sub Design PSA 4N64EA51N00138 9 Female No 4N64EB51N00138 9 Male No 4N64EC51N00171 15 Female No 4N64ED51N00171 15 Male No 4N64EE51N00225 25 Female No 4N64EF51N00225 25 Male No 4N64EG51N00290 37 Female No 4N64EH51N00290 37 Male No SCSI + 68 PIN CONNECTOR, PART NUMBER 4164-FF 4N64
EMI ESSENTIALS KNITTED CONDUCTIVE GASKETS EXCELLENT VERSATILE SHIELDING PERFORMANCE WITH GREAT VARIETY Wire mesh gaskets are a very versatile and proven style of shielding. Wire mesh gaskets have a great variety of uses and there are several popular types to choose from depending on shielding or environmental requirements. Knitted gaskets can be made from a variety of metal wires, including monel, tin plated-copper clad-steel or aluminum.
EMI ESSENTIALS KNITTED CONDUCTIVE GASKETS VISUAL PART REFERENCE GUIDE UltraFlex ElectroNit BeCu Knitted Wire Shielding Hollow Core Round UltraFlex “D“ Shape Hollow Core Double Round Hollow Core Round with Single Fin ElectroNit All Mesh EMI Gasketing All Mesh Single Round with Fin Strip All Mesh Double Round with Fin Strip All Mesh Rectangular Strip All Mesh Round Strip Enviro-Seal Strip with Pressure-Sensitive Adhesive Double Shield Enviro-Seal Strip with PressureSensitive Adhesive ElectroNit E
EMI ESSENTIALS KNITTED CONDUCTIVE GASKETS PART NUMBER CROSS REFERENCE When ordering, please call our sales department to confirm availability and lead times. KNITTED CONDUCTIVE EMI GASKETS PART NO.
EMI ESSENTIALS KNITTED CONDUCTIVE GASKETS ULTRAFLEX ® SIZE VS. TOLERANCE: ULTRAFLEX HOLLOW CORE ROUND ULTRAFLEX HOLLOW CORE ROUND Size Range Tolerance Diameter To 0.120 (3,1) 0.130 to 0.380 (3,3 to 9,7) 0.390 to 0.050 (9,9 to 12,7) + 0.020/- 0.000 (+0,5/-0,0) + 0.030/- 0.000 (+0,8/-0,0) + 0.046/- 0.000 (+1,2/-0,0) 0.510 to 1.000 (13,0 to 25,4) + 0.062/- 0.000 (+1,6/-0,0) Groove Dimensions +0.005 (0,1) W -0.000 (0,0) H +0.005 (0,1) -0.000 (0,0) Dia. Laird Technologies Part No.
EMI ESSENTIALS KNITTED CONDUCTIVE GASKETS ALL MESH ALL MESH SINGLE ROUND WITH FIN STRIP MATERIAL SPECIFICATIONS Material Code 40 42 43 Wire Type Beryllium Copper Monel ® Aluminum Tin Plated Copper Clad Steel 44 46 Specification ASTM B 197 QQ N 281 Class A 5056 Alloy ASTM B 520 Stainless Steel Alloy SS304 SIZE VS. TOLERANCE: ALL MESH SINGLE ROUND WITH FIN STRIP Tolerance Size Range 0.130 to 0.380 (3,3 to 9,7) 0.390 to 0.050 (9,9 to 12,7) Dim W + 0.060/- 0.030 (+1,5/-0,8) + 0.060/- 0.
EMI ESSENTIALS KNITTED CONDUCTIVE GASKETS ELASTOMER CORE MATERIAL SPECIFICATIONSSIZE VS. TOLERANCE: RECTANGULAR WITH SPONGE ELASTOMER Tolerance Size Range To 0.120 (3,1) Width Specification + 0.030/- 0.020 (+0,8/-0,5) Beryllium Copper ASTM B 197 + 0.030 (+-0,8) ® 0.130 to 0.380 (3,3 to 9,7) Monel QQ N 281 Class-A + 0.046 (±1,2) 0.390 to 0.050 (9,9 to 12,7) Tin Plated Copper Clad Steel ASTM B 520 +- 0.062 (±1,6) 0.510 to 1.
Diameter Diameter EMI ESSENTIALS 8410-0107-50 Total Including Knitted Wire Total Including Knitted Wire 0.500 (12,7) KNITTED CONDUCTIVE GASKETS ELASTOMER CORE Round with Sponge Elastomer Round with Silicone Elastomer SIZE SIZE VS. VS. TOLERANCE: TOLERANCE: SINGLE DOUBLEFIN FINWITH WITHSPONGE SPONGEELASTOMER ELASTOMER WWididthth +-+0.030 + 0,8) - 0.030( (-+0,8) ++0.040/0.040/-0.030 0.030(+1,0/-0,8) (+1,0/-0,8) 0.510 0.510toto1.000 1.000(13,0 (13,0toto25,4) 25,4) ++0.062/0.062/-0.040 0.
EMI ESSENTIALS KNITTED CONDUCTIVE GASKETS ELECTROGROUND ® EMI WASHERS FIGURE 5. ELECTROGROUND WASHER DIMENSIONS I.D. FIGURE 5. ELECTROGROUND WASHER DIMENSIONS TABLE 1. DIMENSIONS (CONTINUED) O.D. + 0.015 (0,4) - 0.010 (0,3) T ELECTROGROUND WASHER SIZES, MATERIALS AND TOLERANCES TABLE 1. DIMENSIONS Laird Technologies Part No. 8901-0116-XX O.D. 0.375 (9,5) I.D. 0.240 (6,1) 8904-0116-XX 8905-0116-XX 8906-0116-XX 0.375 (9,5) 0.375 (9,5) 0.375 (9,5) 0.240 (6,1) 0.240 (6,1) I.D. 0.
EMI ESSENTIALS KNITTED CONDUCTIVE GASKETS ELECTROGROUND ® EMI WASHERS TABLE 1. DIMENSIONS (continued) TABLE 1. DIMENSIONS (continued) I.D. Free Height Maximum “T” Laird Technologies Part No. O.D. I.D. Free Height Maximum “T” 0.525 (13,3) 0.525 (13,3) 0.355 (9,0) 0.355 (9,0) 0.032 (0,8) 0.062 (1,6) 8904-0125-XX 8910-0125-XX 8911-0125-XX 0.525 (13,3) 0.525 (13,3) 0.525 (13,3) 0.355 (9,0) 0.355 (9,0) 0.355 (9,0) 0.093 (2,4) 0.125 (3,2) 0.156 (4,0) 8903-0145-XX 8909-0145-XX 8911-0145-XX 0.
EMI ESSENTIALS KNITTED CONDUCTIVE GASKETS ELECTROGROUND ® EMI WASHERS TABLE TABLE 1. 1. DIMENSIONS DIMENSIONS (continued) (continued) LLaairirddTTeecchhnnoolologgieiess Part Part No. No. 8903-0175-XX 8903-0175-XX 8904-0175-XX 8904-0175-XX O.D. O.D. 1.625 1.625 (41,3) (41,3) 1.625 1.625 (41,3) (41,3) I.D. I.D. 1.125 1.125 (28,6) (28,6) 1.125 1.125 (28,6) (28,6) FFrreeee HHeeigighhtt Maximum Maximum“T” “T” 0.032 0.032 (0,8) (0,8) 0.062 0.
EMI ESSENTIALS KNITTED CONDUCTIVE GASKETS ELECTROMESH ® TAPE Laird ElectroMesh tape has a double layered strip of knitted wire mesh to provide effective EMI shielding and grounding for electrical and electronic cable assemblies. It is particularly useful in applications where the need for EMI protection is determined after cable assembly is complete and standard braided cable jackets cannot be used.
EMI ESSENTIALS CONDUCTIVE FABRIC FLECTRON PRODUCTS DATA Flectron® metallized fabric combines highly conductive metals with lightweight fabric to meet a diverse range of EMI/RFI Product No. shielding requirements. Manufactured with Laird patented Ni/Cu Polyester Nonwoven 3027-217 technology, Flectron metallized fabric Ni/Cu Polyester Nonwoven UL94 VTM-0 3027-235 is available in various woven and Ni/Cu Polyester Taffeta 3035-535 non-woven substrate configurations.
EMI ESSENTIALS MRI "A" FABRIC MRI “A” FABRIC Laird MRI “A” Fabric is an EMI/RFI shielding product that is manufactured using a patented, proprietary technology. The base layer is a metallized non-woven fabric plated with highly conductive copper and nickel for corrosion resistance. This is bonded to a thin layer of solid aluminum. The resulting material is a lightweight architectural material with superior shielding effectiveness and outstanding resilience.
EMI ESSENTIALS CONDUCTIVE TAPE CONDUCTIVE FABRIC SHIELDING TAPE Laird conductive fabric shielding tapes offer exceptional conformability and conductivity for dynamic flex applications. Conductive tapes are constructed of nickel/copper metallized fabric with a conductive pressure sensitive adhesive (PSA). This reliable tape design provides outstanding shielding performance while offering superior abrasion and corrosion resistance under high dynamic flex conditions.
EMI ESSENTIALS INTRODUCTION TO ELECTRICALLY CONDUCTIVE ELASTOMERS OVERVIEW ELECTROSEAL™ GASKET INTRODUCTION The electrically conductive elastomers are based on dispersed particles in elastomers, oriented wire in solid or sponge elastomers, impregnated wire mesh screens or expanded metals. They provide highly conductive, yet resilient gasketing materials for EMI sealing as well as pressure and environmental sealing.
EMI ESSENTIALS ELECTROSEAL CONDUCTIVE ELASTOMER PRODUCT SELECTION GUIDE ECE POLYMER MATERIAL MATRIX Benefit Ag (Silver) AgCu AgNi AgAl AgGlass Ni NiAl Silicone good all purpose material NiGraphite Carbon Non-Conductive ECE082/083 ECE080/094 ECE084 ECE081 ECE085 ECE100 ECE032 ECE072/093 ECE087 NCE220 Fluorosilicone fuel and oil resistant -NA- ECE088 ECE090 ECE050/089 ECE011 -NA- -NA- ECE092 -NA- -NA- EPDM biohazard resistant -NA- -NA- -NA- ECE096 -NA- -NA- -NA- ECE0
EMI ESSENTIALS ELECTROSEAL CONDUCTIVE ELASTOMER CASE STUDY EXAMPLE A Telecommunication customer A is looking for a gasket for RRU chassis. The chassis will be made of Aluminum by casting. There is an existing design including groove. Groove dimension is as follows. The customer is looking for an electromagnetic shielding larger than 50 dB for the chassis. And high reliability is required considering RRU unit will be exposed in open air and sustain various weather condition such as snow, rain, fog, etc.
EMI ESSENTIALS ELECTROSEAL CONDUCTIVE ELASTOMER CASE STUDY TABLE 1 TABLE 4 Elastomer Type Low Temperature Upper Temperature EPDM -58°F (-50°C) 257°F (125°C) Silicone -49°F (-45°C) 392°F (200°C) Fluorosilicone -67°F (-55°C) 347°F (175°C) TABLE 2 Material Thickness Compression Force PSI (MPA) at Deflection of: 5% *10% 15% 20% 0.045 (1,1) 40 (0,3) 100 (0,7) 155 (1,1) 280 (1,9) 0.062 (1,6) 85 (0,6) 165 (1,1) 240 (1,7) 345 (2,4) 0.
EMI ESSENTIALS ELECTROSEAL CONDUCTIVE ELASTOMER CASE STUDY MATERIAL SELECTION GUIDE Laird offers a series of products to meet a wide range of customer requirements for military and commercial applications. The classifications of the most common materials are based on cost and specific applications and are outlined in Table 5.
EMI ESSENTIALS ELECTROSEAL CONDUCTIVE ELASTOMER CASE STUDY TABLE 6 (cont.) PARAMETER Filler Ni/ graphite silver/ copper nickel N/A carbon Ni/ graphite silver/Al silver/ glass Elastomer silicone silicone silicone silicone EPDM EPDM EPDM EcE Name EcE93 EcE94 EcE100 NCE220 EcE13 EcE95 EcE96 EcE11 EcE50 EcE88 EcE89 EcE90 EcE92 0.100 0.005 0.200 Non 30 0.100 0.010 0.010 0.012 0.010 0.012 0.005 0.100 100 120 – Conductive 30 70 90 90 95 110 100 100 100 1.
EMI ESSENTIALS VISUAL PART REFERENCE GUIDE ELECTROSEAL CONDUCTIVE ELASTOMERS Rectangular Strips Page 87 Hollow Rectangular Strips Page 87 Hollow D-Strips Page 88 O-StripTubing Page 89 D-Strips Page 90 Channel Strips Page 90 O-Strips Page 91 P-Strip Tubing Page 92 CO-EXTRUSION ELECTROSEAL CONDUCTIVE ELASTOMER FABRICATED COMPONENTS MIL CONNECTOR GASKETS “D” SUBMINIATURE CONNECTOR SHIELDS Page 93 Page 95 Page 101 Page 101 FORM-IN-PLACE EMI DISPENSED GASKETS METAL IMPREGNATED MATERIALS ELECT
EMI ESSENTIALS ELECTROSEAL CONDUCTIVE ELASTOMER MATERIAL SHEET MATERIAL The Table below lists thicknesses and sizes for our molded sheet material, while Table 3, page 82, shows the compounds available for all of our conductive silicone elastomers. HOW TO SPECIFY ECE Decide on molded sheet stock or extruded shapes. Select the desired configuration and dimensions from Table 1 (for sheet stock) or page 85 (for extruded shapes). Select the desired material from Table 3.
EMI ESSENTIALS EXTRUSIONS GUIDE Rectangular Strips Hollow Rectangular Strips TOLERANCES ALL PROFILES DIMENSIONS TOLERANCE Under 0.101 (2,6) 0.101 to 0.200 (2,6 to 5,1) 0.201 to 0.300 (5,1 to 7,6) 0.301 to 0.500 (7,6 to 12,7) Over 0.500 (12,7) ± 0.005 (0,15) ± 0.008 (0,2) ± 0.010 (0,3) ± 0.015 (0,4) ± 0.
EMI ESSENTIALS EXTRUSIONS GUIDE Hollow D-Strips TOLERANCES ALL PROFILES DIMENSIONS TOLERANCE Under 0.101 (2,6) 0.101 to 0.200 (2,6 to 5,1) 0.201 to 0.300 (5,1 to 7,6) 0.301 to 0.500 (7,6 to 12,7) Over 0.500 (12,7) ± 0.005 (0,15) ± 0.008 (0,2) ± 0.010 (0,3) ± 0.015 (0,4) ± 0.
EMI ESSENTIALS EXTRUSIONS GUIDE O-Strip Tubing TOLERANCES ALL PROFILES DIMENSIONS TOLERANCE Under 0.101 (2,6) 0.101 to 0.200 (2,6 to 5,1) 0.201 to 0.300 (5,1 to 7,6) 0.301 to 0.500 (7,6 to 12,7) Over 0.500 (12,7) ± 0.005 (0,15) ± 0.008 (0,2) ± 0.010 (0,3) ± 0.015 (0,4) ± 0.
EMI ESSENTIALS EXTRUSIONS GUIDE D-Strips MIL-DTL-83528 PART NUMBER MB83528/003X001 MB83528/003X005 MB83528/003X010 MB83528/003X004 MB83528/003X002 MB83528/003X008 MB83528/003X007 MB83528/003X006 MB83528/003X003 MB83528/003X011 MB83528/003X012 RECOMMENDED GROOVE DIMENSIONS (±0.002) DIMENSIONS PART NUMBER 8865-0100 8865-0105 8865-0120 8865-0140 8865-0116 8865-0110 8865-0135 8865-0130 8865-0125 8865-0115 8865-0144 8865-0145 A B RAD WIDTH DEPTH 0.055 (1,4) 0.062 (1,6) 0.062 (1,6) 0.075 (1,9) 0.
EMI ESSENTIALS EXTRUSIONS GUIDE O-Strips MIL-DTL-85328 PART NUMBER M83528/001X001 M83528/001X002 M83528/001X003 M83528/001X004 M83528/001X005 M83528/001X006 M83528/001X007 M83528/001X008 M83528/001X009 M83528/001X010 M83528/001X011 M83528/001X0012 M83528/001X013 PART NUMBER 8863-0184 8863-0100 8863-0105 8863-0110 8863-0115 8863-0120 8863-0125 8863-0196 8863-0130 8863-0135 8863-0140 8863-0145 8863-0150 8863-0160 8863-0165 8863-0170 8863-0197 8863-0183 8863-0198 8863-0199 8863-0175 8863-0180 8863-0200
EMI ESSENTIALS EXTRUSIONS GUIDE P-Strips TOLERANCES ALL PROFILES DIMENSIONS TOLERANCE Under 0.101 (2,6) 0.101 to 0.200 (2,6 to 5,1) 0.201 to 0.300 (5,1 to 7,6) 0.301 to 0.500 (7,6 to 12,7) Over 0.500 (12,7) ± 0.005 (0,15) ± 0.008 (0,2) ± 0.010 (0,3) ± 0.015 (0,4) ± 0.
EMI ESSENTIALS GEMINI ™ COEXTRUSIONS MULTI-EXTRUSION, BI-FUNCTIONAL ELASTOMER GASKET FEATURES Laird Gemini™ product line is a high-performance gasket solution that combines a reliable environmental silicone elastomer seal with an electrically conductive elastomer. Conductive particle filler results in a product with lower material cost and an improved environmental seal against water, moisture, dust and mildly corrosive atmospheric conditions due to smog.
EMI ESSENTIALS GEMINI COEXTRUSIONS M 8890-MGS103072-93 D 8890 0001 XX A 8890 0002 XX A 8894 0001 XX A DD 8898 0001 XX A 8898 0002 XX A 94 www.lairdtech.
EMI ESSENTIALS FABRICATED COMPONENTS GUIDE Molded EMI O-Rings TOLERANCES: TABLE 1 AND TABLE 2 INNER DIMENSIONS : C TOLERANCES CROSS SECTION DIMENSIONS : B TOLERANCES 0.100 to 1.500 (3 to 38) 1.501 to 2.500 (38 to 64) 2.501 to 4.500 (64 to 114) 4.501 to 7.000 (114 to 178) over 7.000 (178) ± 0.010 (0,3) ± 0.015 (0,4) ± 0.020 (0,5) ± 0.025 (0,6) ± 0.35% nom. dim. 0.000 to 0.070 (0,0 to 1,8) 0.071 to 0.200 (1,8 to 5,1) 0.201 to 0.400 (5,1 to 10,2) ± 0.003 (0,1) ± 0.005 (0.1) ± 0.006 (0,2) TABLE 1.
EMI ESSENTIALS FABRICATED COMPONENTS GUIDE Flat Washer Gaskets TOLERANCES (ALL DIMENSIONS) DIMENSIONS TOLERANCE Under 0.101 (0,0 to 2,6) 0.101 to 0.200 (2,6 to 5,1) 0.201 to 0.500 (5,1 to 12,7) Over 0.500 (12,7) ± 0.005 (0,1) ± 0.010 (0,3) ± 0.015 (0,4) ± 0.020 (0,5) TABLE 3. MIL-DTL-83528 SERIES MIL-DTL-83528 PART NO. M83528/012X001 M83528/012X002 M83528/012X004 M83528/012X003 M83528/012X005 M83528/012X007 M83528/012X006 M83528/012X008 LAIRD PART NO.
EMI ESSENTIALS FABRICATED COMPONENTS GUIDE Molded Waveguide Gaskets TOLERANCES “D” SECTION PROFILES DIMENSIONS TOLERANCE Under 0.101 (2,6) 0.101 to 0.200 (2,6 to 5,1) 0.201 to 0.300 (5,1 to 7,6) 0.301 to 0.500 (7,6 to 12,7) Over 0.500 (12,7) ± 0.005 (0,1) ± 0.008 (0,2) ± 0.010 (0,3) ± 0.015 (0,4) ± 0.020 (0,5) TABLE 4. CIRCULAR “D” SECTION MIL-DTL-83528 PART NO. M83528/013X002 M83528/013X004 M83528/013X006 M83528/013X008 M83528/013X011 M83528/013X012 M83528/013X017 NOMINAL DIMENSIONS LAIRD PART NO.
EMI ESSENTIALS FABRICATED COMPONENTS GUIDE Rectangular Waveguide Gaskets TABLE 7. MIL-DTL-83528 PART NO. M83528/013X001 M83528/013X003 M83528/013X005 M83528/013X007 M83528/013X009 M83528/013X015 M83528/013X016 M83528/013X020 M83528/013X027 DIMENSIONS LAIRD PART NO. 8560-0104-XX Fig. 1 8560-0105-XX Fig. 1 8560-0106-XX Fig. 1 8560-0103-XX Fig. 1 8560-0107-XX Fig. 1 8560-0108-XX Fig. 1 8560-0113-XX Fig. 2 8560-0114-XX Fig. 2 8560-0116-XX Fig. 2 M83528/013X028 Fig. 2 M83528/013X031 Fig.
EMI ESSENTIALS METAL IMPREGNATED MATERIALS ELECTROMET™ ORIENTED WIRE ElectroMet oriented wire gaskets are EMI shielding and sealing composites. Monel® or aluminum wires embedded in the elastomer and oriented perpendicular to the mating surfaces provide the EMI sealing. Solid or sponge silicone provides the weather sealing; however, solid silicone weather seals are recommended for high-pressure applications.
EMI ESSENTIALS METAL IMPREGNATED MATERIALS DIE-CUT GASKET Oriented wire can be supplied as a die-cut gasket in various configurations. Gasket sizes are available up to 9 in. (228,6 mm) X 36 in. (914,4 mm). Several of the most common die-cut gaskets are for cable connectors and Sub-D connectors shown in Figures 2a and 2b. FIGURE 2A. CABLE CONNECTOR Corner holes may be slotted at Laird option FIGURE 2B.
EMI ESSENTIALS METAL IMPREGNATED MATERIALS MIL CONNECTOR GASKETS Laird offers a broad range of EMI gasket materials to fit the shell sizes of standard MIL connectors. • Gaskets are available in a wide range of materials that can provide shielding or a combination of RF shielding and environmental sealing • Standardized to fit all MIL connectors • Test results indicate shielding effectiveness of 100 dB or greater for these connector gaskets TABLE 1.
EMI ESSENTIALS SPECIALTY PRODUCTS ELECTROCOAT™ ElectroCoat is a thin, flexible surface coating consisting of a silver-filled silicone elastomer. The versatile coating can be easily applied to die-cut or molded foams for both gasket and nongasket applications. It can also be applied to molded or extruded elastomers, other polymers, and a wide range of other materials.
EMI ESSENTIALS AUTOMATED FORM-IN-PLACE EMI GASKET TECHNOLOGIES INTRODUCTION Laird form-in-place is an automated system for dispensing conductive elastomer EMI shielding and grounding gaskets onto metal or plastic substrates. Form-in-place is particularly well suited for cellular phones, PDAs, PC cards, telecom base stations, radios, and many other compartmentalized cast or plastic enclosures and packaged electronic assemblies.
EMI ESSENTIALS AUTOMATED FORM-IN-PLACE EMI GASKET TECHNOLOGIES TABLE 1. TYPICAL BEAD DIMENSIONS TABLE 2. ACCELERATED CURE AT HIGHER TEMPERATURES HEIGHT WIDTH MINIMUM LANDING AREA 0.014 ± 0.003 (0,4 ± 0,1) 0.015 ± 0.003 (0,4 ± 0,1) 0.020 (0,5) Temperature °F (°C) 0.015 ± 0.003 (0,4 ± 0,1) 0.020 ± 0.003 (0,5 ± 0,1) 0.025 (0,6) Time for 98% Cure (Hr.) 0.020 ± 0.003 (0,5 ± 0,1) 0.024 ± 0.003 (0,6 ± 0,1) 0.029 (0,7) 0.027 ± 0.004 (0,7 ± 0,1) 0.030 ± 0.004 (0,8 ± 0,1) 0.036 (0,9) 0.030 ± 0.
EMI ESSENTIALS MICROWAVE ABSORBERS PRODUCT SELECTION GUIDE Frequency Range Description Thickness Application >10 GHz Q Zorb™ - 2000 .020” (0.5 mm) >8 GHz Q Zorb™ - 2000 .040” (1.0 mm) >4 GHz Q Zorb™ - 2000 .060” (1.5 mm) Q-Zorb is thinner and more robust for surface currents. Thicker is better for low frequency. <4 GHz Q Zorb™ - 2000 .125” (3.1 mm) <2 GHz Q Zorb™ - 3000 .006” (0.15 mm) <2 GHz Q Zorb™ - 3000 .020” (0.5 mm) Refection Loss Broadband RF Foam - 4000 .50” (12.
EMI ESSENTIALS DESIGN GUIDE FOR COMMERCIAL MICROWAVE ABSORBERS Microwave absorbers have been used in military applications for several decades. They have been traditionally used for EMI reduction, antenna pattern shaping and radar cross reduction. More recently with the rise of wireless electronics and the movement to higher frequencies microwave absorbers or “noise suppression sheets” (NSS) are used to reduce electromagnetic interference (EMI) inside of the wireless electronics assemblies.
EMI ESSENTIALS DESIGN GUIDE FOR COMMERCIAL MICROWAVE ABSORBERS To improve the performance of the device, Laird Q-Zorb microwave absorber was put on the inside cover of the enclosure. This is a standard way in which absorbers are used. Q-Zorb is supplied with a pressure sensitive adhesive to allow for ease of installation. The cover is shown below in Figure 3. MAGNETIC ABSORBER VS.
EMI ESSENTIALS DESIGN GUIDE FOR COMMERCIAL MICROWAVE ABSORBERS TUNED FREQUENCY VS SURFACE WAVE ABSORBERS Laird offers two types of Q-Zorb materials: tuned frequency and surface wave absorbers. Tuned frequency materials are used in far field applications such as direct radar reflections off of an object. Surface wave absorbers are used for high angle of incidence applications and for cavity noise suppression.
EMI ESSENTIALS Q-ZORB ® 2000 HF (HIGH FREQUENCY) SURFACE WAVE ABSORBERS Q-Zorb® 2000 HF surface wave absorbers are thin, magnetically loaded elastomeric sheets designed to provide attenuation at high angles of incidence for surface wave attenuation. They are nominally manufactured in the thickness range of 0.015" to 0.125" (0,4 mm to 3,2 mm). Q-Zorb® 2000 is silicone-based, meets the UL V0 fire retardant requirement and is RoHS compliant.
EMI ESSENTIALS Q-ZORB ® 3000 HP (HIGH PERMEABILITY) ABSORBERS CA-19 Q-Zorb 3000 HP product line utilizes special shaped magnetic fillers in a polymeric binder to produce thin sheets with excellent low frequency performance. The product has very high permeabilities along with low frequency magnetic loss. This allows relatively thin sheets of material to perform at frequencies below 2 GHz. CA 19 comes in thickness ranges of .006” .15 mm to .020” .5 mm. and is very flexible.
EMI ESSENTIALS RFRET 4000 RETICULATED FOAM ABSORBERS RFRET 4000 is a reticulated foam absorber. Reticulated foam is an urethane-based foam with a well-defined open-cell structure. The cell size can be chosen to optimize penetration of the conductive coating to which it is adhered. Laird uses two separate processes to produce its reticulated foam absorber. This unique spray process applies a coating that is graded through the thickness of the foam.
EMI ESSENTIALS RFLS 5000 SINGLE LAYER "LOSSY" FOAM ABSORBERS APPLICATIONS RFLS 5000 is a series of single layer "lossy" sheets produced by dipping lightweight open-celled urethane foam into a resistive solution. The end product is a uniform, lightweight, loaded sheet material with a specified insertion loss at a given frequency. RFLS offers the lowest cost in microwave absorber products. Thickness of the sheets range from 0.125" to 1.
EMI ESSENTIALS ANALYSIS, TEST AND PROTOTYPE DEVELOPMENT ABSORBER BOARD-LEVEL SHIELDING (ABLS) FIGURE 1. Increasing use of printed circuit boards in complex electronics requires unique shielding solutions. Laird has developed a near field measurement to accurately determine the effectiveness of board-level shielding. Several Laird board-level shields have been characterized using this technique.
ANTENNAS & RECEPTION | EMBEDDED WIRELESS | EMI | TELEMATICS | THERMAL | WIRELESS AUTOMATION & CONTROL Americas: +1.800.634.2673 Europe: +49.8031.24600 ASEAN: +65.6243.8022 China: +86.757.2563.8860 India: +91.80.40740.400 x448 Japan: +81.45.473.6808 Korea: +82.10.8706.7469 Taiwan: +886.2.22901234 x163 www.lairdtech.com EMI-CAT-ESSENTIALS 1213 Any information furnished by Laird and its agents is believed to be accurate and reliable. All specifications are subject to change without notice.
