component

T491B227M004AT

Public Made by Adom

by adom

KEMET Tantalum Capacitors, CASE-B-3528-21(mm). Polarised capacitor: pin 1 is + by the KiCad polarised-footprint convention, KiCad symbol/footprint/3D.

componentcapacitorst491b227m004atfactory-2.0.0extractor-text

Verified T491B227M004AT

by Ray · last 12 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

12 Nov 2026RaySupersedes the earlier record: that check missed polarity (the pins said "unpolarised"; this capacitor is polarised): component-page-verify now PASSESfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: T491B227M004AT · CASE-B-3528-21(mm) · 2 pins
  • ✓copper: 2 copper pads, none touching another net
  • ✓datasheet: two-terminal part whose datasheet prints no pin numbers: pins 1 and 2 by library convention, no names to check
  • ✓distributor: lcsc C696795, digikey 399-4625-2-ND, mouser 80-T491B227M004AT
  • ✓family: CP_EIA-3528-21_Kemet-B
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-gwlcqf6c/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓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 20 kB, viewers/symbol.html 6 kB
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ t491b227m004at.kicad_sym✓ t491b227m004at.kicad_mod✓ t491b227m004at.step
Spot something wrong? Report it as an issue Propose a fix Records are signed by members of adom.
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Made with kicad-footprint-generator 10.0 · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray
viewers t491b227m004at: viewers · Ray
package.json Polarity: pin 1 = +, 2 = - (symbol, footprint and 3D agree); brief and README corrected · Ray
page.json brief: polarity sentence corrected · Ray
README.md Polarity: pin 1 = +, 2 = - (symbol, footprint and 3D agree); brief and README corrected · Ray
t491b227m004at-etched.glb Publish 0.1.0 · Ray
t491b227m004at-etched.step t491b227m004at: factory component page (tier=lcsc) · Ray
t491b227m004at-hero.glb t491b227m004at: hero GLB from the etched model (keeps the MPN mark) · Ray
t491b227m004at-hero.overlay.json Publish 0.1.0 · Ray
t491b227m004at.glb Publish 0.1.0 · Ray
t491b227m004at.kicad_mod Publish 0.1.0 · Ray
t491b227m004at.kicad_sym t491b227m004at: KiCad Device:C_Polarized symbol instead of a box (two-terminal passive) · Ray
t491b227m004at.lbr t491b227m004at: KiCad Device:C_Polarized symbol instead of a box (two-terminal passive) · Ray
t491b227m004at.step Publish 0.1.0 · Ray
verification.json Verified: Supersedes the earlier record: that check missed polarity (the pins said "unpolarised"; this capacitor is pol… · Ray

T491B227M004AT

KEMET · Tantalum Capacitors · CASE-B-3528-21(mm)

T491B227M004AT from KEMET, in a CASE-B-3528-21(mm). 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 CP_ footprint; symbol and 3D mark the + end).
2 - passive Negative terminal.

Key specifications

Parameter Value
Manufacturer KEMET
Package CASE-B-3528-21(mm)
Category Capacitors
Pins 2

Electrical characteristics

Limits from the LCSC catalog entry for this part (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Capacitance 220 µF nominal, catalog attribute (LCSC C696795) catalog
Tolerance -20 20 % catalog attribute (LCSC C696795) catalog
Operating temperature -55 125 °C catalog description (LCSC C696795) catalog

CAD (KiCad official)

  • Symbol: T491B227M004AT
  • Footprint: Capacitor_Tantalum_SMD:CP_EIA-3528-21_Kemet-B
  • 3D model: CASE-B-3528-21(mm) (KiCad packages3D, STEP)
  • 3D model files: t491b227m004at-etched.step / t491b227m004at-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); t491b227m004at.step / t491b227m004at.glb are the bare package body.

Provenance

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

  • Datasheet: KEMET datasheet (23 pp, sha256 271b6cea80c8b55f, retrieved 2026-10-13, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary two-terminal 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