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4N50L

Public Made by Adom

by adom

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

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4N50L

UMW · MOSFETs · TO-252

4N50L from UMW, 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 G input Gate; gate-source voltage limited to ±30 V (VGSS), threshold VGS(th) 2.0 to 4.0 V at ID=0.25 mA.
2 D passive Drain; drain-source voltage up to 500 V (VDSS) and continuous current 5 A at TC=25°C (pulsed 15 A), also connected to the exposed tab.
3 S passive Source; connected to the body diode with continuous diode forward current IS of 5 A (pulsed 15 A).

Key specifications

Parameter Value
Manufacturer UMW
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 500 V 1
Continuous drain current ID 5 A TC = 25°C 1
Continuous drain current ID 2.5 A TC = 100°C 1
Pulsed drain current IDM 15 A 1
Gate-Source voltage VGSS -30 30 V 1
Avalanche energy, single pulse EAS 106 mJ 1
Power Dissipation PD 76 W 1
Operating and Storage Temperature Range TJ, TSTG -55 150 °C 1
Continuous diode forward current IS 5 A 1
Diode pulse current IS,pulse 15 A 1
Soldering temperature, wave soldering at leads only Tsold 260 °C 1.6mm from case for 10s 1
Thermal Resistance, Junction-to-Case RθJC 1.65 °C/W 1
Thermal Resistance, Junction-to-Ambient, minimal footprint RθJA 62 °C/W minimal footprint (note 4) 1
Drain-source breakdown voltage BVDSS 500 V VGS=0V, ID=0.25mA 2
Gate threshold voltage VGS(th) 2 4 V VDS=VGS, ID=0.25mA 2
Drain cut-off current IDSS 1 μA VDS=500V, VGS=0 V, Tj = 25°C 2
Gate leakage current, Forward IGSSF 100 nA VGS=30V, VDS=0V 2
Gate leakage current, Reverse IGSSR -100 nA VGS=-30V, VDS=0V 2
Drain-source on-state resistance RDS(on) 2.05 2.4 Ω VGS=10 V, ID=2A 2
Diode forward voltage VSD 1.3 V VGS=0V, IF=7A 2

CAD (KiCad official)

  • Symbol: 4N50L
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252 (KiCad packages3D, STEP)
  • 3D model files: 4n50l-etched.step / 4n50l-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 4n50l.step / 4n50l.glb are the bare package body.

Provenance

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

  • Datasheet: UMW datasheet (6 pp, sha256 491f1706e03804bf, 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