component

EWH1HM681W20OT

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AISHI Aihua Group Aluminum Electrolytic Capacitors - Leaded, 插件,D12.5xL20mm. Polarised capacitor: the anode is not yet recorded on this page; see the maker's datasheet.

componentcapacitorsewh1hm681w20otfactory-2.0.0extractor-text

Not verified yet EWH1HM681W20OT

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Verification log 1 record

6 Nov 2026RayPublished by the parts factory: tier lcsc, 2 pinssuperseded
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: EWH1HM681W20OT · CP_Radial_D12.5mm_P5.00mm · 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 (warn): no ['digikey', 'mouser'] number
  • ✓family: CP_Radial_D12.5mm_P5.00mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-9qjno_y3/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
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ ewh1hm681w20ot.kicad_sym✓ ewh1hm681w20ot.kicad_mod✓ ewh1hm681w20ot.step
Retired by Ray on 11 Nov 2026: Retired: this check called a polarised capacitor an unpolarised two-terminal part. Fixed in component-page-verify 0.5.13 (an unrecorded polarity now fails) and 0.5.14 (the datasheet row no longer says unpolarised).
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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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EWH1HM681W20OT

AISHI Aihua Group · Aluminum Electrolytic Capacitors - Leaded · CP_Radial_D12.5mm_P5.00mm

EWH1HM681W20OT from AISHI Aihua Group, in a CP_Radial_D12.5mm_P5.00mm. 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 1 passive Terminal 1 of a POLARISED capacitor (Capacitors / Aluminum Electrolytic Capacitors - Leaded). Which terminal is the anode (+) is not yet recorded on this page: read it from the maker's datasheet before placing.
2 2 passive Terminal 2 of a POLARISED capacitor (Capacitors / Aluminum Electrolytic Capacitors - Leaded). Which terminal is the anode (+) is not yet recorded on this page: read it from the maker's datasheet before placing.

Key specifications

Parameter Value
Manufacturer AISHI Aihua Group
Package CP_Radial_D12.5mm_P5.00mm
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
Operating temperature range (category temperature range) T -40 105 °C Rated voltage 6.3-100 Vdc 7
Capacitance tolerance (part-number tolerance code M) -20 20 % Tol. code M = ±20% 1
Capacitance change after endurance test ΔC -20 20 % Relative to initial value; after 2000 h at 105°C with DC voltage plus rated ripple current 7
Capacitance change after shelf life test ΔC -20 20 % Relative to initial value; after 1000 h at 105°C without voltage 7
Dissipation factor (tanδ) max tanδ 0.1 Rated voltage 50 Vdc column; at 20°C, 120 Hz 7
Dissipation factor after endurance test tanδ 200 % of initial specified value After 2000 h at 105°C with DC voltage plus rated ripple current 7
Dissipation factor after shelf life test tanδ 200 % of initial specified value After 1000 h at 105°C without voltage applied 7
Leakage current after shelf life test I_L 200 % of initial specified value After 1000 h at 105°C without voltage applied 7
Rated voltage (part-number voltage code 1H) VR 50 V Voltage code 1H decodes to 50 Vdc per voltage code table 1
Nominal capacitance (part-number code 681) C 680 µF Capacitance code 681 decodes to 680 µF 1
Peak temperature, flow soldering (radial lead) 260 °C Flow soldering, radial lead type; as printed in soldering recommendation 5

CAD (KiCad official)

  • Symbol: EWH1HM681W20OT
  • Footprint: Capacitor_THT:CP_Radial_D12.5mm_P5.00mm
  • 3D model: CP_Radial_D12.5mm_P5.00mm (KiCad packages3D, STEP)
  • 3D model files: ewh1hm681w20ot-etched.step / ewh1hm681w20ot-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ewh1hm681w20ot.step / ewh1hm681w20ot.glb are the bare package body.

Provenance

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

  • Datasheet: AISHI Aihua Group datasheet (9 pp, sha256 53d74143b46ed9a9, retrieved 2026-11-06, 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