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KIA50N03BD

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

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KIA50N03BD

KIA Semicon Tech · MOSFETs · TO-252

KIA50N03BD 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 MOSFET gate terminal; the gate-source voltage is rated at ±20 V (VGSS).
2 Drain passive MOSFET drain terminal; rated for 30 V drain-source voltage (VDSS) and 50 A continuous drain current at TC = 25 ºC.
3 Source passive MOSFET source terminal; the integral reverse P-N body diode is rated for 50 A continuous source current (IS).

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 Voltage VDSS 30 V 2
Drain Current -Continuous ID 50 A TC = 25 ºC 2
Drain Current -Continuous ID 30 A TC = 100 ºC 2
Drain Current -Pulsed IDM 200 A 2
Gate-Source Voltage VGSS -20 20 V 2
Single Pulsed Avalanche Energy EAS 85 mJ Note 1: L = 0.5mH, VDD = 15V, VGS = 10V, RG = 25Ω, Starting TJ = 25°C 2
Power Dissipation PD 60 W TC = 25 ºC 2
Power Dissipation Derating PD 0.5 W/ºC Derate above 25 ºC 2
Operating and Storage Temperature Range TJ,TSTG -55 150 ºC 2
Thermal Resistance, Junction-to-Case RθJC 1.8 ºC /W 2
Thermal Resistance, Junction-to-Ambient RθJA 62 ºC /W 2
Drain-Source Breakdown Voltage BVDSS 30 V VGS = 0 V, ID = 250 uA 3
Drain-Source Leakage Current IDSS 1 uA VDS = 30 V, VGS = 0V 3
Gate-Source Leakage Current IGSS -100 100 nA VGS = ±20 V, VDS = 0V 3
Gate Threshold Voltage VGS(th) 1 1.6 3 V VDS = VGS, ID = 250 uA 3
Static Drain-Source On-Resistance RDS(on) 6.5 9.9 mΩ VGS = 10 V, ID = 15A 3
Continuous Source Current IS 50 A 3
Pulsed Source Current ISM 200 A 3
Drain-Source Diode Forward Voltage VSD 1.5 V VGS = 0 V, IS = 15A 3

CAD (KiCad official)

  • Symbol: KIA50N03BD
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252 (KiCad packages3D, STEP)
  • 3D model files: kia50n03bd-etched.step / kia50n03bd-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); kia50n03bd.step / kia50n03bd.glb are the bare package body.

Provenance

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

  • Datasheet: KIA Semicon Tech datasheet (5 pp, sha256 2274527ec5edb2d9, retrieved 2026-10-21, 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