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NCE40H12K

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Wuxi NCE Power Semiconductor MOSFETs, TO-252-2L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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docs nce40h12k: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STEP) · Ray 17d ago
viewers nce40h12k: viewers · Ray 24d ago
nce40h12k-etched.glb nce40h12k: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STEP) · Ray 17d ago
nce40h12k-etched.step nce40h12k: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STEP) · Ray 17d ago
nce40h12k-hero.glb nce40h12k: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STEP) · Ray 17d ago
nce40h12k-hero.overlay.json nce40h12k: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STEP) · Ray 17d ago
nce40h12k.glb Publish 0.1.0 · Ray 24d ago
nce40h12k.kicad_mod Publish 0.1.0 · Ray 24d ago
nce40h12k.kicad_sym Publish 0.1.0 · Ray 24d ago
nce40h12k.lbr Publish 0.1.0 · Ray 24d ago
nce40h12k.step Publish 0.1.0 · Ray 24d ago
package.json nce40h12k: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STEP) · Ray 17d ago
page.json nce40h12k: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STEP) · Ray 17d ago
README.md nce40h12k: specified limits as data (metadata.characteristics, 18 rows from the datasheet) · Ray 19d ago

NCE40H12K

Wuxi NCE Power Semiconductor · MOSFETs · TO-252-2L

NCE40H12K from Wuxi NCE Power Semiconductor, in a TO-252-2L. 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 G input Gate; controls the channel with VGS rated ±20V maximum and a gate threshold of 1.2V to 2.5V at ID=250μA.
2 D passive Drain, also connected to the exposed tab; VDS is rated 40V maximum with continuous ID of 120A at TC=25℃.
3 S passive Source; carries up to 120A continuous current (body diode IS 120A max).

Key specifications

Parameter Value
Manufacturer Wuxi NCE Power Semiconductor
Package TO-252-2L
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 VDS 40 V 1
Gate-Source Voltage VGS -20 20 V 1
Drain Current-Continuous ID 120 A 1
Drain Current-Continuous (TC=100℃) ID (100℃) 85 A TC=100℃ 1
Pulsed Drain Current IDM 330 A 1
Maximum Power Dissipation PD 120 W 1
Single pulse avalanche energy (Note 5) EAS 1080 mJ Note 5: Tj=25℃,VDD=20V,VG=10V,L=1mH,Rg=25Ω, IAS=46.5A 1
Operating Junction and Storage Temperature Range TJ,TSTG -55 175 ℃ 1
Drain-Source Breakdown Voltage BVDSS 40 45 V VGS=0V ID=250μA 2
Zero Gate Voltage Drain Current IDSS 1 μA VDS=40V,VGS=0V 2
Gate-Body Leakage Current IGSS -100 100 nA VGS=±20V,VDS=0V 2
Gate Threshold Voltage VGS(th) 1.2 1.8 2.5 V VDS=VGS,ID=250μA 2
Drain-Source On-State Resistance RDS(ON) 3.6 4 mΩ VGS=10V, ID=20A 2
Drain-Source On-State Resistance RDS(ON) 5.8 7 mΩ VGS=4.5V, ID=10A 2
Forward Transconductance gFS 26 S VDS=10V,ID=20A 2
Diode Forward Voltage VSD 1.2 V VGS=0V,IS=40A 2
Diode Forward Current IS 120 A 2
Thermal Resistance, Junction-to-Case RθJC 1.25 ℃/W Surface Mounted on FR4 Board, t ≤ 10 sec (Note 2) 2

CAD (KiCad official)

  • Symbol: NCE40H12K
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252-2L (KiCad packages3D, STEP)
  • 3D model files: nce40h12k-etched.step / nce40h12k-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); nce40h12k.step / nce40h12k.glb are the bare package body.

Provenance

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

  • Datasheet: Wuxi NCE Power Semiconductor datasheet (7 pp, sha256 03832a9d6ad7db7a, retrieved 2026-10-09, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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