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KND3903A

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KIA Semicon Tech MOSFETs, TO-252. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componenttransistors-thyristorsknd3903afactory-2.0.0extractor-text

Verified KND3903A

by Ray · last 5 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

5 Nov 2026RayPublished by the parts factory: tier lcsc, 3 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: KND3903A · TO-252 · 3 pins
  • ✓copper: 3 copper pads, none touching another net
  • ✓datasheet: all 3 pin names found in the 7-page datasheet
  • •distributor (warn): no ['digikey', 'mouser'] number
  • ✓family: TO-252-2
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-lum2joz2/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: 3 pins = 3 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 3 pins agree
  • ✓symbol_text: no pin names collide
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ knd3903a.kicad_sym✓ knd3903a.kicad_mod✓ knd3903a.step
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3D Model

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Symbol & Footprint

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Contents

README

markdown

KND3903A

KIA Semicon Tech · MOSFETs · TO-252

KND3903A from KIA Semicon Tech, in a TO-252. 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 Gate input Gate terminal of the N-channel MOSFET; the datasheet gives a gate-source voltage limit of VGS ±20 V (absolute maximum ratings).
2 Drain passive Drain terminal of the N-channel MOSFET; the datasheet rates the drain-source voltage at VDSS 30 V and the continuous drain current at ID 85 A at TC=25°C.
3 Source passive Source terminal of the N-channel MOSFET; the datasheet gives no pin-specific limit for this terminal beyond the device ratings.

Key specifications

Parameter Value
Manufacturer KIA Semicon Tech
Package TO-252
Category Transistors/Thyristors
Pins 3

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Drain-source breakdown voltage BVDSS 30 V VGS=0V, ID=250uA 3
Drain-source leakage current IDSS 1 uA VDS=30V, VGS=0V 3
Drain-source leakage current IDSS 10 uA VDS=24V, TC=125°C 3
Gate-source forward leakage current IGSS -100 100 nA VGS=±20V, VDS=0V 3
Gate threshold voltage VGS(TH) 1 1.5 2.5 V VDS=VGS, ID=250uA 3
Drain-source on-resistance RDS(on) 3.6 5 mΩ VGS=10V, ID=30A 3
Drain-source on-resistance RDS(on) 5.2 7 mΩ VGS=4.5V, ID=20A 3
Maximum continuous drain-source diode forward current IS 90 A 3
Maximum pulsed drain-source diode forward current ISM 360 A 3
Diode forward voltage VSD 1.2 V ISD=30A, VGS=0V, TJ=25°C 3
Drain-source voltage VDSS 30 V 2
Continuous drain current ID 85 A TC=25°C 2
Continuous drain current ID 55 A TC=100°C 2
Pulsed drain current IDM 360 A Repetitive rating, pulse width limited by max junction temperature 2
Gate-source voltage VGS -20 20 V 2
Single pulse avalanche energy EAS 90 mJ 2
Power dissipation PD 90 W TC=25°C 2
Operating junction and storage temperature range TJ, TSTG -55 175 ºC 2
Maximum lead temperature for soldering purposes (1/8 inch from case, 5 seconds) TL 300 ºC 1/8" from case for 5 seconds 2
Thermal resistance junction-case RθJC 1.67 ºC/W 2

CAD (KiCad official)

  • Symbol: KND3903A
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252 (KiCad packages3D, STEP)
  • 3D model files: knd3903a-etched.step / knd3903a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); knd3903a.step / knd3903a.glb are the bare package body.

Provenance

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

  • Datasheet: KIA Semicon Tech datasheet (7 pp, sha256 30654f28374a8348, retrieved 2026-11-05, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (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