Datasheet

ManualsBrandsKEMET ManualsCapacitorsTantalum Capacitor, 100nF, 50V, 20%

1© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard T2005_T491 • 3/11/2019

Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com

One world. One KEMET

Benets

• Meets or exceeds EIA Standard 535BAAC

• Taped and reeled per EIA-481

• Symmetrical, compliant terminations

• Optional gold-plated terminations

• Laser-marked case

• 100% surge current test on C, D, E, U, V, and X sizes

• Halogen free epoxy

• Capacitance 0.1 to 1,000 µF

• Tolerance ±10%, ±20%

• Voltage 2.5 – 50 VDC

• Extended range values

• Lowprolecasesizes

• RoHS compliant and lead-free terminations

• Operatingtemperaturerangeof−55°Cto+125°C

Overview

TheKEMETT491,designedspecicallyfortoday’shighly

automated surface mount processes and equipment, is

the leading choice for surface mount designs. The T491

combinesKEMET’sprovensolidtantalumtechnology,

acclaimed and respected throughout the world, with the

latest in materials, processes and automation, resulting

in unsurpassed total performance and value. This product

meets or exceeds the requirements of EIA standard

535BAAC.TheT491isclassiedasmoisturesensitivity

level(MSL)1underJSTD020,withunlimitedoorlife

timeat≤30°C/85%RH.TheT491standardterminationsare

available in 100% matte tin and provide excellent wetting

characteristics and compatibility with today's surface mount

solder systems. Tin/lead (Sn/Pb) terminations are available

upon request for any part number. Gold-plated terminations

are also available for use with conductive epoxy attachment

processes. Standard packaging of these devices is Tape

& Reel in accordance with EIA 481. This system provides

perfect compatibility with all tape-fed placement units.

Tantalum Surface Mount Capacitors – Standard Tantalum

T491 Industrial Grade MnO

Applications

Typicalapplicationsincludedecouplingandlteringinindustrialandautomotiveendapplications,suchasDC/DC

converters, portable electronics, telecommunications, and control units.

Environmental Compliance

RoHS compliant (6/6) according to Directive 2002/95/EC when ordered with 100% Sn solder, Gold-plated or Non-magnetic

100% Sn solder.

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Summary of content (23 pages)

PAGE 1
Tantalum Surface Mount Capacitors – Standard Tantalum T491 Industrial Grade MnO2 Overview The KEMET T491, designed specifically for today’s highly automated surface mount processes and equipment, is the leading choice for surface mount designs. The T491 combines KEMET’s proven solid tantalum technology, acclaimed and respected throughout the world, with the latest in materials, processes and automation, resulting in unsurpassed total performance and value.
PAGE 2
Tantalum Surface Mount Capacitors – Standard Tantalum T491 Industrial Grade MnO 2 K-SIM For a detailed analysis of specific part numbers, please visit ksim.kemet.com to access KEMET’s K-SIM software. KEMET K-SIM is designed to simulate behavior of components with respect to frequency, ambient temperature, and DC bias levels.
PAGE 3
Tantalum Surface Mount Capacitors – Standard Tantalum T491 Industrial Grade MnO 2 Qualification Test Condition Characteristics Δ C/C Endurance 85°C at rated voltage, 2,000 hours 125°C at 2/3 rated voltage, 2,000 hours Within initial limits DCL Within 1.
PAGE 4
Tantalum Surface Mount Capacitors – Standard Tantalum T491 Industrial Grade MnO 2 Electrical Characteristics Capacitance vs. Frequency ESR vs. Frequency 100 1,000 T491C336M025AT_IMP T491C336M025AT 10 T491D476M025AT T491X107M025AT_IMP T491X107M025AT T491C336M025AT_ESR Capacitance (µF) Impedance, ESR (Ohms) T491D476M025AT_IMP T491D476M025AT_ESR T491X107M025AT_ESR 1 0.1 0.
PAGE 5
Tantalum Surface Mount Capacitors – Standard Tantalum T491 Industrial Grade MnO 2 Table 1 – Ratings & Part Number Reference Rated Rated Voltage Cap Case Code/ Case Size KEMET Part Number VDC at 85°C µF KEMET/EIA (See below for part options) 2.5 2.5 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 100 220 33 3.3 4.7 6.8 6.
PAGE 6
Tantalum Surface Mount Capacitors – Standard Tantalum T491 Industrial Grade MnO 2 Table 1 – Ratings & Part Number Reference cont'd Rated Rated Voltage Cap Case Code/ Case Size KEMET Part Number VDC at 85°C µF KEMET/EIA (See below for part options) 4 4 4 4 4 4 4 4 4 4 4 4 4 4 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 220 220 220 220 330 330 330 330 470 470 680 680 1000 1000 2.2 3.3 4.7 4.7 6.8 6.8 6.
PAGE 7
Tantalum Surface Mount Capacitors – Standard Tantalum T491 Industrial Grade MnO 2 Table 1 – Ratings & Part Number Reference cont'd Rated Rated Voltage Cap Case Code/ Case Size KEMET Part Number VDC at 85°C µF KEMET/EIA (See below for part options) 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.
PAGE 8
Tantalum Surface Mount Capacitors – Standard Tantalum T491 Industrial Grade MnO 2 Table 1 – Ratings & Part Number Reference cont'd Rated Rated Voltage Cap Case Code/ Case Size KEMET Part Number VDC at 85°C µF KEMET/EIA (See below for part options) 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 6.8 6.8 6.8 6.
PAGE 9
Tantalum Surface Mount Capacitors – Standard Tantalum T491 Industrial Grade MnO 2 Table 1 – Ratings & Part Number Reference cont'd Rated Rated Voltage Cap Case Code/ Case Size KEMET Part Number VDC at 85°C µF KEMET/EIA (See below for part options) 10 10 10 10 10 10 10 10 10 10 10 10 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 150 150 220 220 220 220 330 330 330 330 470 470 1 1.5 2.2 2.2 2.2 3.3 3.3 4.7 4.7 4.7 4.7 6.8 6.8 6.
PAGE 10
Tantalum Surface Mount Capacitors – Standard Tantalum T491 Industrial Grade MnO 2 Table 1 – Ratings & Part Number Reference cont'd Rated Rated Voltage Cap Case Code/ Case Size KEMET Part Number VDC at 85°C µF KEMET/EIA (See below for part options) 16 16 16 16 16 16 16 16 16 16 16 16 16 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 68 68 68 68 100 100 100 100 150 150 220 220 220 0.68 0.47 1 1 1.5 1.5 2.2 2.2 3.3 3.3 3.3 4.7 4.7 4.7 6.8 6.8 6.8 6.
PAGE 11
Tantalum Surface Mount Capacitors – Standard Tantalum T491 Industrial Grade MnO 2 Table 1 – Ratings & Part Number Reference cont'd Rated Rated Voltage Cap Case Code/ Case Size KEMET Part Number VDC at 85°C µF KEMET/EIA (See below for part options) 20 20 20 20 20 20 20 20 20 20 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 47 47 47 68 68 68 100 100 100 150 0.33 0.47 0.68 1 1 1 1.5 1.5 2.2 2.2 2.2 3.3 3.3 3.3 4.7 4.7 4.7 6.8 6.8 6.
PAGE 12
Tantalum Surface Mount Capacitors – Standard Tantalum T491 Industrial Grade MnO 2 Table 1 – Ratings & Part Number Reference cont'd Rated Rated Voltage Cap Case Code/ Case Size KEMET Part Number VDC at 85°C µF KEMET/EIA (See below for part options) 25 25 25 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 50 50 50 50 50 50 68 100 100 0.1 0.15 0.22 0.33 0.47 0.47 0.68 0.68 1 1 1.5 1.5 1.5 2.2 2.2 2.2 3.3 3.3 3.3 4.7 4.7 4.7 6.8 6.8 6.
PAGE 13
Tantalum Surface Mount Capacitors – Standard Tantalum T491 Industrial Grade MnO 2 Table 1 – Ratings & Part Number Reference cont'd Rated Rated Voltage Cap Case Code/ Case Size KEMET Part Number VDC at 85°C µF KEMET/EIA (See below for part options) 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 0.33 0.47 0.47 0.47 0.68 0.68 0.68 1 1 1 1 1.5 1.5 2.2 2.2 3.3 3.3 4.7 4.7 6.8 6.
PAGE 14
Tantalum Surface Mount Capacitors – Standard Tantalum T491 Industrial Grade MnO 2 Recommended Voltage Derating Guidelines 85°C to 125°C VR 67% of VR 50% of VR 33% of VR 120% 100% % Working Voltage % Change in working DC voltage with temperature Recommended maximum application voltage −55°C to 85°C 80% % Change in Working DC Voltage with Temperature 67% 60% 40% 20% 0% −55 Recommended Maximum Application Voltage (As % of Rated Voltage) 25 33% 85 Temperature (ºC) 125 Ripple Current/Ripple V
PAGE 15
Tantalum Surface Mount Capacitors – Standard Tantalum T491 Industrial Grade MnO 2 Reverse Voltage Solid tantalum capacitors are polar devices and may be permanently damaged or destroyed if connected with the wrong polarity. The positive terminal is identified on the capacitor body by a stripe, plus, in some cases a beveled edge. A small degree of transient reverse voltage is permissible for short periods per the table.
PAGE 16
Tantalum Surface Mount Capacitors – Standard Tantalum T491 Industrial Grade MnO 2 Soldering Process The KEMET families of surface mount capacitors are compatible with wave (single or dual), convection, IR, or vapor phase reflow techniques. Preheating of these components is recommended to avoid extreme thermal stress. KEMET's recommended profile conditions for convection and IR reflow reflect the profile conditions of the IPC/J-STD-020D standard for moisture sensitivity testing.
PAGE 17
Tantalum Surface Mount Capacitors – Standard Tantalum T491 Industrial Grade MnO 2 Construction Polarity Stripe (+) Molded Epoxy Case Detailed Cross Section Silver Paint (Fourth Layer) Polarity Bevel (+) Tantalum Wire Leadframe (− Cathode) Washer Tantalum Wire Weld (to attach wire) Carbon (Third Layer) Silver Adhesive Leadframe (+ Anode) Molded Epoxy Case MnO2 (Second Layer) Washer Ta2O5 Dielectric (First Layer) Tantalum Capacitor Marking Date Code * 1 digit = last number of year 5 = 2015 6 =
PAGE 18
Tantalum Surface Mount Capacitors – Standard Tantalum T491 Industrial Grade MnO 2 Tape & Reel Packaging Information KEMET’s molded chip capacitor families are packaged in 8 and 12 mm plastic tape on 7" and 13" reels in accordance with EIA Standard 481: Embossed Carrier Taping of Surface Mount Components for Automatic Handling. This packaging system is compatible with all tape-fed automatic pick-and-place systems. Right hand orientation only (+) Embossed carrier (−) Embossment Top tape thickness 0.
PAGE 19
Tantalum Surface Mount Capacitors – Standard Tantalum T491 Industrial Grade MnO 2 Figure 1 – Embossed (Plastic) Carrier Tape Dimensions P2 T T2 ØD0 P0 (10 pitches cumulative tolerance on tape ±0.2 mm) A0 E1 F K0 B1 E2 B0 S1 W P1 T1 Center Lines of Cavity B1 is for tape feeder reference only, including draft concentric about B0.
PAGE 20
Tantalum Surface Mount Capacitors – Standard Tantalum T491 Industrial Grade MnO 2 Packaging Information Performance Notes 1. Cover tape break force: 1.0 kg minimum. 2. Cover tape peel strength: The total peel strength of the cover tape from the carrier tape shall be: Tape Width Peel Strength 8 mm 0.1 to 1.0 newton (10 to 100 gf) 12 mm 0.1 to 1.3 newton (10 to 130 gf) The direction of the pull shall be opposite the direction of the carrier tape travel.
PAGE 21
Tantalum Surface Mount Capacitors – Standard Tantalum T491 Industrial Grade MnO 2 Figure 5 – Reel Dimensions Full Radius, See Note W3 (Includes flange distortion at outer edge) Access Hole at Slot Location (Ø 40 mm minimum) W2 D A (See Note) N C (Arbor hole diameter) B (see Note) (Measured at hub) W1 (Measured at hub) If present, tape slot in core for tape start: 2.5 mm minimum width x 10.0 mm minimum depth Note: Drive spokes optional; if used, dimensions B and D shall apply.
PAGE 22
Tantalum Surface Mount Capacitors – Standard Tantalum T491 Industrial Grade MnO 2 Figure 6 – Tape Leader & Trailer Dimensions Embossed Carrier Punched Carrier 8 mm & 12 mm only END Carrier Tape Round Sprocket Holes START Top Cover Tape Elongated Sprocket Holes (32 mm tape and wider) Trailer 160 mm minimum Components 100 mm minimum Leader 400 mm minimum Top Cover Tape Figure 7 – Maximum Camber Elongated Sprocket Holes (32 mm & wider tapes) Carrier Tape Round Sprocket Holes 1 mm maximum, either di
PAGE 23
Tantalum Surface Mount Capacitors – Standard Tantalum T491 Industrial Grade MnO 2 KEMET Electronics Corporation Sales Oﬃces For a complete list of our global sales offices, please visit www.kemet.com/sales. Disclaimer All product specifications, statements, information and data (collectively, the “Information”) in this datasheet are subject to change.