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Contents

README

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NCEP40T20A

Wuxi NCE Power Semiconductor · MOSFETs · TO-220

NCEP40T20A from Wuxi NCE Power Semiconductor, in a TO-220. 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 limited to ±20 V and threshold VGS(th) of 2 V min to 3.8 V max at ID=250μA.
2 D passive Drain; rated VDS 40 V, continuous ID 200 A, pulsed IDM 800 A, and connected to the mounting tab.
3 S passive Source; main current return path, with diode forward current IS up to 200 A.

Key specifications

Parameter Value
Manufacturer Wuxi NCE Power Semiconductor
Package TO-220
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 200 A 1
Drain Current-Continuous ID (100℃) 150 A TC=100℃ 1
Pulsed Drain Current (Note 1) IDM 800 A 1
Maximum Power Dissipation PD 270 W TC=25℃ 1
Operating Junction and Storage Temperature Range TJ,TSTG -55 175 ℃ 1
Single pulse avalanche energy (Note 5) EAS 1692 mJ Tj=25℃, VDD=20V, VG=10V, L=0.5mH, Rg=25Ω 1
Thermal Resistance, Junction-to-Case (Note 2) RθJC 0.56 ℃/W Surface Mounted on FR4 Board, t ≤ 10 sec 1
Drain-Source Breakdown Voltage BVDSS 40 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) 2 3.8 V VDS=VGS,ID=250μA 2
Drain-Source On-State Resistance RDS(ON) 1.3 1.6 mΩ VGS=10V, ID=100A 2
Forward Transconductance gFS 90 S VDS=5V,ID=100A 2
Diode Forward Current (Note 2) IS 200 A 2
Reverse Recovery Time trr 38 nS 2
Reverse Recovery Charge Qrr 125 nC TJ = 25°C, IF = IS, di/dt = 100A/μs (Note3) 2
Diode Forward Voltage (Note 3) VSD 1.2 V VGS=0V,IS=100A 2
Derating factor 1.8 W/℃ 1

CAD (KiCad official)

  • Symbol: NCEP40T20A
  • Footprint: Package_TO_SOT_THT:TO-220-3_Vertical
  • 3D model: TO-220 (KiCad packages3D, STEP)
  • 3D model files: ncep40t20a-etched.step / ncep40t20a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ncep40t20a.step / ncep40t20a.glb are the bare package body.

Provenance

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

  • Datasheet: Wuxi NCE Power Semiconductor datasheet (6 pp, sha256 e196ccf508832c07, retrieved 2026-10-18, 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