component

EKWA451ELL121MMN3S

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by adom

NCC Nippon Chemi Con Aluminum Electrolytic Capacitors - Leaded, 插件,D18xL31.5mm. Polarised capacitor: the anode is not yet recorded on this page; see the maker's datasheet.

componentcapacitorsekwa451ell121mmn3sfactory-2.0.0extractor-text

Not verified yet EKWA451ELL121MMN3S

no verified record on this page yet

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: EKWA451ELL121MMN3S · CP_Radial_D18.0mm_P7.50mm · 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_D18.0mm_P7.50mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-rqy1111y/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): the datasheet dimensions give no height or body size to compare (datasheet p.1)
  • ✓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✓ ekwa451ell121mmn3s.kicad_sym✓ ekwa451ell121mmn3s.kicad_mod✓ ekwa451ell121mmn3s.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

markdown

EKWA451ELL121MMN3S

NCC Nippon Chemi Con · Aluminum Electrolytic Capacitors - Leaded · CP_Radial_D18.0mm_P7.50mm

EKWA451ELL121MMN3S from NCC Nippon Chemi Con, in a CP_Radial_D18.0mm_P7.50mm. 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 NCC Nippon Chemi Con
Package CP_Radial_D18.0mm_P7.50mm
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
Temperature Range -40 105 ℃ 1
Capacitance tolerance (code M) C -20 20 % at 20℃, 120Hz 1
Dissipation factor (tanδ) max tanδ 0.2 at 20℃, 120Hz 1
Low temperature impedance ratio Z(-25℃)/Z(+20℃) max, 450V column Z(-25℃)/Z(+20℃) 6 at 120Hz 1
Endurance capacitance change ΔC -20 20 % 5,000 h at 105℃ with rated ripple current and rated DC voltage; restored to 20℃ 1
Endurance dissipation factor max tanδ 200 % of initial specified value 5,000 h at 105℃ with rated ripple current and rated DC voltage; restored to 20℃ 1
Shelf life capacitance change ΔC -20 20 % 1,000 h at 105℃ without voltage applied; restored to 20℃ 1
Shelf life dissipation factor max tanδ 200 % of initial specified value 1,000 h at 105℃ without voltage applied; restored to 20℃ 1
Shelf life leakage current max 500 % of initial specified value 1,000 h at 105℃ without voltage applied; restored to 20℃ 1
Rated voltage (MPN voltage code 451) VR 450 Vdc 1
Nominal capacitance (MPN capacitance code 121) C 120 µF 2
Rated ripple current IR 800 mArms 105℃, 120Hz 2
Ripple current frequency multiplier, 100 to 120 µF 1 120Hz 2
Ripple current frequency multiplier, 100 to 120 µF 1.3 1kHz 2
Ripple current frequency multiplier, 100 to 120 µF 1.4 10kHz 2
Ripple current frequency multiplier, 100 to 120 µF 1.5 100kHz 2

CAD (KiCad official)

  • Symbol: EKWA451ELL121MMN3S
  • Footprint: Capacitor_THT:CP_Radial_D18.0mm_P7.50mm
  • 3D model: CP_Radial_D18.0mm_P7.50mm (KiCad packages3D, STEP)
  • 3D model files: ekwa451ell121mmn3s-etched.step / ekwa451ell121mmn3s-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ekwa451ell121mmn3s.step / ekwa451ell121mmn3s.glb are the bare package body.

Provenance

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

  • Datasheet: NCC Nippon Chemi Con datasheet (2 pp, sha256 c2cfffc59239377b, 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