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NCEP0178AK

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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 ncep0178ak: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STE… · Ray 17d ago
viewers ncep0178ak: viewers · Ray 24d ago
ncep0178ak-etched.glb ncep0178ak: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STE… · Ray 17d ago
ncep0178ak-etched.step ncep0178ak: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STE… · Ray 17d ago
ncep0178ak-hero.glb ncep0178ak: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STE… · Ray 17d ago
ncep0178ak-hero.overlay.json ncep0178ak: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STE… · Ray 17d ago
ncep0178ak.glb Publish 0.1.0 · Ray 24d ago
ncep0178ak.kicad_mod Publish 0.1.0 · Ray 24d ago
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ncep0178ak.step Publish 0.1.0 · Ray 24d ago
package.json ncep0178ak: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STE… · Ray 17d ago
page.json ncep0178ak: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STE… · Ray 17d ago
README.md ncep0178ak: specified limits as data (metadata.characteristics, 21 rows from the datasheet) · Ray 18d ago

NCEP0178AK

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

NCEP0178AK 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; gate-source voltage limited to ±20 V with threshold of 1.2 V min to 2.2 V max at ID=250μA.
2 D passive Drain (center pin, also connected to the tab); VDS 100 V max and continuous ID 78 A.
3 S passive Source; continuous diode forward current IS of 78 A 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 100 V 1
Gate-Source Voltage VGS -20 20 V 1
Drain Current-Continuous ID 78 A TC=25℃ unless otherwise noted 1
Drain Current-Continuous ID (100℃) 60 A TC=100℃ 1
Pulsed Drain Current IDM 320 A 1
Maximum Power Dissipation PD 125 W 1
Single pulse avalanche energy EAS 320 mJ Note 5: Tj=25℃, VDD=50V, VG=10V, L=0.5mH, Rg=25Ω 1
Operating Junction and Storage Temperature Range TJ,TSTG -55 175 ℃ 1
Thermal Resistance, Junction-to-Case RθJC 1.2 ℃/W Note 2 2
Drain-Source Breakdown Voltage BVDSS 100 V VGS=0V ID=250μA 2
Zero Gate Voltage Drain Current IDSS 1 μA VDS=100V,VGS=0V 2
Gate-Body Leakage Current IGSS -100 100 nA VGS=±20V,VDS=0V 2
Gate Threshold Voltage VGS(th) 1.2 1.7 2.2 V VDS=VGS,ID=250μA 2
Drain-Source On-State Resistance RDS(ON) 7.2 8.5 mΩ VGS=10V, ID=39A 2
Drain-Source On-State Resistance RDS(ON) 9.5 12 mΩ VGS=4.5V, ID=39A 2
Forward Transconductance gFS 40 S VDS=10V,ID=39A 2
Input Capacitance Clss 4200 5480 pF 2
Output Capacitance Coss 354 425 pF 2
Reverse Transfer Capacitance Crss 23 30 pF VDS=50V,VGS=0V, F=1.0MHz 2
Diode Forward Voltage VSD 1.2 V VGS=0V,IS=78A 2
Diode Forward Current IS 78 A 2

CAD (KiCad official)

  • Symbol: NCEP0178AK
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252-2L (KiCad packages3D, STEP)
  • 3D model files: ncep0178ak-etched.step / ncep0178ak-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ncep0178ak.step / ncep0178ak.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 54c43c437bbebfc3, 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