component

T491A684M020AT

Public Made by Adom

by adom

KEMET Tantalum Capacitors, A (EIA 3216-18). Polarised capacitor: pin 1 is + by the KiCad polarised-footprint convention, KiCad symbol/footprint/3D.

componentcapacitorst491a684m020atfactory-2.0.0extractor-text1206

Verified T491A684M020AT

by Ray · last 10 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

10 Nov 2026RayPublished by the parts factory: tier lcsc, 2 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: T491A684M020AT · A (EIA 3216-18) · 2 pins
  • ✓copper: 2 copper pads, none touching another net
  • ✓datasheet: unpolarised two-terminal part: pins 1 and 2 by library convention, no names to check
  • ✓distributor: lcsc C4986824, digikey 399-10130-2-ND, mouser 80-T491A684M020
  • ✓family: CP_EIA-3216-18_Kemet-A
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-i5tzszln/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • ✓package_fit: height within the datasheet's package drawing (datasheet p.4)
  • ✓pads: 2 pins = 2 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 2 pins agree
  • ✓symbol_text: no pin names collide
  • ✓viewers: viewers/footprint.html 18 kB, viewers/symbol.html 6 kB
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ t491a684m020at.kicad_sym✓ t491a684m020at.kicad_mod✓ t491a684m020at.step
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Made with kicad-footprint-generator 10.0 · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.1 · Ray
viewers t491a684m020at: viewers · Ray
package.json Publish 0.1.2 · Ray
page.json Publish 0.1.2 · Ray
README.md Publish 0.1.1 · Ray
t491a684m020at-etched.glb Publish 0.1.1 · Ray
t491a684m020at-etched.step t491a684m020at: factory component page (tier=lcsc) · Ray
t491a684m020at-hero.glb t491a684m020at: hero GLB from the etched model (keeps the MPN mark) · Ray
t491a684m020at-hero.overlay.json Publish 0.1.1 · Ray
t491a684m020at.glb Publish 0.1.1 · Ray
t491a684m020at.kicad_mod Publish 0.1.1 · Ray
t491a684m020at.kicad_sym Publish 0.1.1 · Ray
t491a684m020at.lbr Publish 0.1.1 · Ray
t491a684m020at.step Publish 0.1.1 · Ray
verification.json Verified: Published by the parts factory: tier lcsc, 2 pins · Ray

T491A684M020AT

KEMET · Tantalum Capacitors · A (EIA 3216-18)

T491A684M020AT from KEMET, in a A (EIA 3216-18). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 + passive Positive terminal; pad 1 of the KiCad polarised-capacitor footprint (CP_, pad 1 = +).
2 - passive Negative terminal.

Key specifications

Parameter Value
Manufacturer KEMET
Package A (EIA 3216-18)
Category Capacitors
Pins 2

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Rated capacitance C 0.68 µF 120 Hz/25°C 10
Capacitance tolerance (M = ±20%) -20 20 % M suffix in part number 2
Rated voltage 20 VDC VDC at 85°C 10
DC leakage current DCL 0.5 µA +25°C, maximum/5 minutes 10
Dissipation factor DF 4 % +25°C, 120 Hz maximum 10
Equivalent series resistance ESR 12 Ω +25°C, 100 kHz maximum 10
Maximum allowable ripple current 79 mA 100 kHz, +25°C 10
Maximum allowable ripple current 71 mA 100 kHz, +85°C 10
Maximum allowable ripple current 32 mA 100 kHz, +125°C 10
Capacitance change vs temperature at −55°C Δ C/C -10 10 % Temperature stability, −55°C step 3
Capacitance change vs temperature at +85°C Δ C/C -10 10 % Temperature stability, +85°C step 3
Capacitance change vs temperature at +125°C Δ C/C -20 20 % Temperature stability, +125°C step 3
Endurance capacitance change Δ C/C -10 10 % 85°C at rated voltage, 2,000 hours 3
Storage life capacitance change Δ C/C -10 10 % 125°C at 0 volts, 2,000 hours 3
Thermal shock capacitance change Δ C/C -5 5 % MIL-STD-202 Method 107 Condition B, −55°C to 125°C, 1,000 cycles 3
Surge voltage capacitance change Δ C/C -5 5 % 85°C, 1.32 x rated voltage, 1,000 cycles 3
Mechanical shock/vibration capacitance change Δ C/C -10 10 % MIL-STD-202 Method 213 Condition I and Method 204 Condition D 3
Operating temperature range -55 125 °C 2
Maximum power dissipation (case A) P max 75 mW 25°C w/+20°C rise 14
Recommended maximum application voltage 50 % of VR −55°C to 85°C 14
Recommended maximum application voltage 33 % of VR 85°C to 125°C 14
Permissible transient reverse voltage 15 % of rated voltage 25°C, short periods 15
Permissible transient reverse voltage 5 % of rated voltage 85°C, short periods 15
Permissible transient reverse voltage 1 % of rated voltage 125°C, short periods 15
Reflow temperature 260 °C Reflow, ≤ 260 °C rating column 5
Maximum storage temperature 40 °C Storage 16
Maximum storage humidity 60 % RH Storage 16

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts gold solder systems. Tin/lead (Sn/Pb) terminations are available upon request for any part number. Gold-plated terminations 1

CAD (KiCad official)

  • Symbol: T491A684M020AT
  • Footprint: Capacitor_Tantalum_SMD:CP_EIA-3216-18_Kemet-A
  • 3D model: A (EIA 3216-18) (KiCad packages3D, STEP)
  • 3D model files: t491a684m020at-etched.step / t491a684m020at-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); t491a684m020at.step / t491a684m020at.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: KEMET datasheet (23 pp, sha256 c90877715d84e98b, retrieved 2026-11-10, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary polarised-capacitor convention (convention), consensus off (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF