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 Fabric-Over-Foam and Conductive Foam 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.
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.
EMI ESSENTIALS EMI ESSENTIALS BOARD LEVEL SHIELDS PRODUCT SELECTION GUIDE Corner Feature Traditional Folded BLS Design Type / Features Unique Product Features Mounting Features Rigid Corner Full Drawn w/ Flange Full Drawn Zero Flange ReMovl Pick & Place Bridge 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 EMI ESSENTIALS BOARD LEVEL SHIELDS BOARD LEVEL SHIELDS STANDARD DESIGN 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 EMI ESSENTIALS BOARD LEVEL SHIELDS STANDARD DESIGN SHIELDS BOARD LEVEL SHIELDS EZ PEEL ™ STANDARD SURFACE MOUNT SHIELDS — PATENTED SHIELDS ARE SCORED TO ALLOW PEEL-OFF WHEN ACCESS IS NEEDED 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.
EMI ESSENTIALS EMI ESSENTIALS BOARD LEVEL SHIELDS RECOVR ™ BOARD LEVEL SHIELDS 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 EMI ESSENTIALS FINGERSTOCK PRODUCT SELECTION GUIDE 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 EMI ESSENTIALS FINGERSTOCK MOUNTING METHODS FINGERSTOCK ORDERING INFORMATION 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 0.205 (5.
EMI ESSENTIALS EMI ESSENTIALS FINGERSTOCK ULTRASOFT ® SERIES FINGERSTOCK SLOT MOUNT SERIES Series UltraSoft® fingers have been designed for communications, computers and electronic systems designers concerned with EMI compliance and lightweight enclosure designs.
EMI ESSENTIALS EMI ESSENTIALS FINGERSTOCK SLOT MOUNT SERIES FINGERSTOCK DUAL SLOT SERIES Part No. 77-075, 77-093, 77-110 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.
EMI ESSENTIALS EMI ESSENTIALS FINGERSTOCK COMPACT PCI SYMMETRICAL MOUNT FINGERSTOCK VARIABLE SLOT MOUNT 77-057 TOP VIEW TOP VIEW H 0.012 H (0.305) 0.012 27.0° (0.305) 27.0° 0.026 R. 0.050 (0.660) (1.270) 0.026 (0.660) 0.190 (4.826) 0.190 0.026 (4.826) (0.660) 0.050 (1.270) 2X 0.053 (1.346) 2X 0.053 (1.346) 27.0° 16.000 (406.400) Length 0.0025 (0.063) 0.085 REF. (2.159) Pitch 0.250 (6.350) Slot 0.018 (0.457) Pitch 0.250 (6.350) Slot 0.018 (0.457) Pitch 0.250 (6.350) 77-056 Slot 0.018 (0.
EMI ESSENTIALS EMI ESSENTIALS FINGERSTOCK SYMMETRICAL (S 3 ) SLOTTED SHIELDING FINGERSTOCK SOLID TOP (S 3 ) SYMMETRICAL SLOTTED SHIELDING GASKET RIVET MOUNT 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 EMI ESSENTIALS FINGERSTOCK CLIP-ON SYMMETRICAL SHIELDING FINGERSTOCK NO SNAG GASKET 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 EMI ESSENTIALS FINGERSTOCK ALL-PURPOSE SERIES FINGERSTOCK CLIP-ON SERIES Right angle Strips available ® versions available with Magnefil 97-618 97-621 97-622 97-623 Right angle Strips available ® versions available with Magnefil 97-603 97-604 97-605 97-606 97-607 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
EMI ESSENTIALS EMI ESSENTIALS FINGERSTOCK CLIP-ON SERIES FINGERSTOCK LOW PROFILE HOOK-ON GASKET CLIP-ON SERIES DIMENSIONS C D E 2 97-603 0.380 (9.652) 2 97-604 2 2 F G H 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 (12.700) X — — — 0.330 (8.382) 0.280 (7.112) 0.070 (1.778) 0.380 (9.652) 0.005 (0.127) 0.250 (6.350) 0.040 (1.016) 0.100 16.000 (2.
EMI ESSENTIALS EMI ESSENTIALS FINGERSTOCK LARGE ENCLOSURE SERIES FINGERSTOCK FOLDOVER 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
97-541 97-542 C C 0.380 0.120 0.003 0.250 0.080 0.003 (9.652) (6.350) (3.048) (2.032) (0.076) (0.076) 0.250 0.080 0.003 (6.350) (2.032) (0.076) 97-542 B 0.188 0.188 (4.775) (4.775) 0.188 (4.775) 0.018 0.060 0.018 0.060 (0.457) (0.457) (1.524) (1.524) 0.018 0.060 (0.457) (1.524) 0.050 0.050 (1.270) (1.270) 0.050 (1.270) 16.000 16.000 (406.400) (406.400) 16.000 (406.400) 25.0 25.0 (7.6) (7.6) 25.0 (7.
80 120 60 100 40 80 20 60 0.020 (0.508) Slot 80 0.300 Pitch 0.020 (0.508) Slot 0.030 (0.762) (7.620) 20 10K 100K 1M EMI ESSENTIALS 0 40 10K 100K 10M 100M Frequency (Hz) 1M 10M 100M 1G 100M 1G 0.030 (0.762) FINGERSTOCK CARD GUIDE CLIP-ON Frequency (Hz) 20 0 10K 100K 1M 10M 0.060 (1.524) 0.115 (2.921) 34° 34° 0.090 (2.286) 97-973 0.120 (3.048) 0.360 (9.144) 0.064 0.183 (4.648) 0.008 0.115(1.626) (0.203) 0.020 0.030 (2.921) (0.508) (0.762) 0.183 (4.648) 0.035 0.020 (0.889) 0.
100K 10K 100K 10µΩ EMI ESSENTIALS 10nΩ 10K 100K 100µΩ 1µΩ 100nΩ 10nΩ 1M 10M Frequency (Hz) 1M 10M Frequency (Hz) 100M 100M 108 1M 10M Frequency (Hz) 100M 102 103 104 105 106 107 1G 108 0.030 R (0.762) 0.015 (0.381) 0.295 (7.493) 0.035 (0.889) 0.030 R 0.015 (0.762) (0.381) 0.295 0.035 (7.493) (0.889) 0.120 R 0.030 R (3.048)0.015 (0.762) (0.381) 0.120 R (3.048) 0.015 0.035 (7.493) (0.889) (1.524) 100 101 0.060 R 0.788 (1.524) (20.
INSIDE 0.138 (3.505) 0.810 (20.574) 0.198 (5.029) (20.574) (3.048) 0.846 (21.488) 0.405 (10.287) 0.854 (21.692) 0.110 (2.794) 0.495 (12.573) 0.180 (4.572) 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) EMI ESSENTIALS 0.150 (3.
EMI ESSENTIALS EMI ESSENTIALS PRECISION STAMPED METALS STANDARD PRECISION CONTACTS PRECISION STAMPED METALS STANDARD PRECISION CONTACTS STANDARD PRECISION ELECTRONIC 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.
EMI ESSENTIALS EMI ESSENTIALS PRECISION STAMPED METALS CUSTOM DESIGN PRECISION STAMPED METALS CUSTOM STAMPING 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 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.
EMI ESSENTIALS EMI ESSENTIALS VENT PANELS 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 EMI ESSENTIALS VENT PANELS ™ EMI/DUST FILTRATION PANEL ELECTRO-AIR TM VENT PANELS ™ ELECTROVENT TM Electro-Air EMI/Dust Filtration Panel 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.
EMI ESSENTIALS EMI ESSENTIALS FABRIC-OVER FOAM PRODUCT SELECTION GUIDE Material Type Metal Plating Product Type Base Material / Fabric Type Foam 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 NNW Material Designation Material Thickness PSA (mm) Specifications Temperature UL Flame Applica
EMI ESSENTIALS EMI ESSENTIALS FABRIC-OVER FOAM METALLIZED SHIELDING GASKETS 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.
EMI ESSENTIALS 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. FABRIC-OVER-FOAM I/O GASKET SELECTION GUIDE Part Number Example: While Laird Fabric-Over-Foam EMI gaskets are RoHS compliant, we are proactively strengthening our compliancy by engineering halogen-free EcoGreenTM shields.
EMI ESSENTIALS EMI ESSENTIALS FABRIC-OVER-FOAM PROFILE SELECTION GUIDE FABRIC-OVER-FOAM PROFILE SELECTION GUIDE Rectangle Shaped Continued 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.
EMI ESSENTIALS EMI ESSENTIALS FABRIC-OVER-FOAM PROFILE SELECTION GUIDE 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) Profile Number W H C-FOLD SHAPED L1 H L2 W BELL SHAPED 4695 0.375 (9,5) 0.375 (9,5) 4206 0.395 (10,0) 0.395 (10,0) 4084 0.500 (12,7) 0.
EMI ESSENTIALS EMI ESSENTIALS FABRIC-OVER-FOAM I/O SELECTION GUIDE FABRIC-OVER-FOAM I/O SELECTION GUIDE DIVERSE ASSEMBLY OPTIONS 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.
EMI ESSENTIALS EMI ESSENTIALS FABRIC-OVER-FOAM I/O GASKET SELECTION GUIDE KNITTED CONDUCTIVE GASKETS SCSI + 50 PIN CONNECTOR, PART NUMBER 4164-FE Usage: Peripheral, Hard Disk, CD-ROM EXCELLENT VERSATILE SHIELDING PERFORMANCE WITH GREAT VARIETY 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 4N64E
EMI ESSENTIALS EMI ESSENTIALS KNITTED CONDUCTIVE GASKETS VISUAL PART REFERENCE GUIDE KNITTED CONDUCTIVE GASKETS PART NUMBER CROSS REFERENCE When ordering, please call our sales department to confirm availability and lead times.
EMI ESSENTIALS EMI ESSENTIALS KNITTED CONDUCTIVE GASKETS ULTRAFLEX ® KNITTED CONDUCTIVE GASKETS ALL MESH 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.
MATERIAL SPECIFICATIONS Elastomer Diameter Wire Type EMI ESSENTIALS Tin Plated Copper ClaTotal d Steel EMI ESSENTIALS Elastomer Type SIZE SINGLE FIN SIZE VS. VS. TOLERANCE: TOLERANCE: DOUBLE FINWITH WITHSPONGE SPONGEELASTOMER ELASTOMER RECTANGULAR WITH SPONGE ELASTOMER Height + 0.030/- 0.020 (+0,8/-0,5) +- 0.030 (+-0,8) +- 0.046 (+-1,2) +- 0.062 (+-1,6) Medium; Temp. Range -24°F to 212°F (-31,1°C to 100°C) Silicone Solid SIZE VS. TOLERANCE: RECTANGULAR WITH SPONGE ELASTOMER +- 0.
EMI ESSENTIALS EMI ESSENTIALS KNITTED CONDUCTIVE GASKETS ELECTROGROUND ® EMI WASHERS KNITTED CONDUCTIVE GASKETS ELECTROGROUND ® EMI WASHERS FIGURE 5. ELECTROGROUND WASHER DIMENSIONS I.D. O.D. + 0.015 (0,4) - 0.010 (0,3) T ELECTROGROUND WASHER SIZES, MATERIALS AND TOLERANCES TABLE 1. DIMENSIONS Laird LTaeicrhdnToelcohgnieoslogies Part No. Part No. 8908-0125-XX 8901-0116-XX 8909-0125-XX 8904-0116-XX O.D. O.D. 0.525 0.375 (9,5)(13,3) 0.525 0.375 (9,5)(13,3) I.D. I.D. 0.2400.355 (6,1) (9,0) 0.2400.
EMI ESSENTIALS EMI ESSENTIALS KNITTED CONDUCTIVE GASKETS ELECTROGROUND ® EMI WASHERS KNITTED CONDUCTIVE GASKETS ELECTROMESH ® TAPE TABLE TABLE 1. 1. DIMENSIONS DIMENSIONS (continued) (continued) 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. LLaairirddTTeecchhnnoolologgieiess Part Part No. No. 8903-0175-XX 8903-0175-XX 8904-0175-XX 8904-0175-XX O.D. O.D. 1.625 1.
EMI ESSENTIALS EMI ESSENTIALS CONDUCTIVE FABRIC MRI "A" FABRIC ® Whether used as an architectural shielding product to shield complete rooms, or as the shielding material in EMI gaskets, tapes, and shield laminates, Flectron fabrics provide a highly effective shielding system that is cost-effective and easily applied.
EMI ESSENTIALS EMI ESSENTIALS CONDUCTIVE TAPE INTRODUCTION TO ELECTRICALLY CONDUCTIVE ELASTOMERS 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).
EMI ESSENTIALS EMI ESSENTIALS ELECTROSEAL CONDUCTIVE ELASTOMER PRODUCT SELECTION GUIDE ELECTROSEAL CONDUCTIVE ELASTOMER CASE STUDY EXAMPLE ECE POLYMER MATERIAL MATRIX Benefit Ag (Silver) AgCu AgNi AgAl AgGlass Ni NiAl NiGraphite Carbon Non-Conductive Silicone good all purpose material 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
EMI ESSENTIALS EMI ESSENTIALS ELECTROSEAL CONDUCTIVE ELASTOMER CASE STUDY ELECTROSEAL CONDUCTIVE ELASTOMER CASE STUDY TABLE 1 MATERIAL SELECTION GUIDE 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 5% *10% 15% 20% Laird offers a series of products to meet a wide range of customer requirements for military and commercial applications.
EMI ESSENTIALS EMI ESSENTIALS ELECTROSEAL CONDUCTIVE ELASTOMER CASE STUDY VISUAL PART REFERENCE GUIDE TABLE 6 (cont.) ELECTROSEAL CONDUCTIVE ELASTOMERS 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.
EMI ESSENTIALS EMI ESSENTIALS ELECTROSEAL CONDUCTIVE ELASTOMER MATERIAL EXTRUSIONS GUIDE 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. Rectangular Strips Hollow Rectangular Strips 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).
EMI ESSENTIALS EMI ESSENTIALS EXTRUSIONS GUIDE EXTRUSIONS GUIDE Hollow D-Strips O-Strip Tubing TOLERANCES ALL PROFILES TOLERANCES ALL PROFILES DIMENSIONS TOLERANCE 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) ± 0.020 (0,5) 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.
EMI ESSENTIALS EMI ESSENTIALS EXTRUSIONS GUIDE EXTRUSIONS GUIDE D-Strips O-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.
EMI ESSENTIALS EMI ESSENTIALS EXTRUSIONS GUIDE GEMINI ™ COEXTRUSIONS P-Strips 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 EMI ESSENTIALS GEMINI COEXTRUSIONS FABRICATED COMPONENTS GUIDE M 8890-MGS103072-93 D 8890 0001 XX A 8890 0002 XX A 8894 0001 XX A DD 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.
EMI ESSENTIALS EMI ESSENTIALS FABRICATED COMPONENTS GUIDE FABRICATED COMPONENTS GUIDE Flat Washer Gaskets 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. TOLERANCES (ALL DIMENSIONS) DIMENSIONS TOLERANCE Under 0.
EMI ESSENTIALS EMI ESSENTIALS FABRICATED COMPONENTS GUIDE METAL IMPREGNATED MATERIALS Rectangular Waveguide Gaskets 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 EMI ESSENTIALS METAL IMPREGNATED MATERIALS METAL IMPREGNATED MATERIALS DIE-CUT GASKET MIL CONNECTOR GASKETS 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. Laird offers a broad range of EMI gasket materials to fit the shell sizes of standard MIL connectors. FIGURE 2A.
EMI ESSENTIALS EMI ESSENTIALS SPECIALTY PRODUCTS AUTOMATED FORM-IN-PLACE EMI GASKET TECHNOLOGIES ELECTROCOAT™ INTRODUCTION 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 EMI ESSENTIALS AUTOMATED FORM-IN-PLACE EMI GASKET TECHNOLOGIES MICROWAVE ABSORBERS PRODUCT SELECTION GUIDE 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.
EMI ESSENTIALS EMI ESSENTIALS DESIGN GUIDE FOR COMMERCIAL MICROWAVE ABSORBERS DESIGN GUIDE FOR COMMERCIAL MICROWAVE ABSORBERS Two types of NSS are used for these types of applications. They are described below: MAGNETIC ABSORBERS ABSORBER APPLICATIONS Electronic operating at high frequencies can have problems with emission of high frequency noise. Once put inside an enclosure, the energy will add in phase at certain frequencies to cause resonances which will hinder the performance of the device.
EMI ESSENTIALS EMI ESSENTIALS DESIGN GUIDE FOR COMMERCIAL MICROWAVE ABSORBERS Q-ZORB ® 2000 HF (HIGH FREQUENCY) SURFACE WAVE ABSORBERS TUNED FREQUENCY VS 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).
EMI ESSENTIALS EMI ESSENTIALS Q-ZORB ® 3000 HP (HIGH PERMEABILITY) ABSORBERS CA-19 RFRET 4000 RETICULATED FOAM ABSORBERS 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.
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.
