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FMD5N50E5

Fortior Tech · MOSFETs · TO-252

FMD5N50E5 from Fortior 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 G input Gate; gate-to-source voltage rated ±30 V, threshold VGS(TH) 3.0 to 5.0 V at VDS = VGS, ID = 250 µA.
2 D passive Drain; drain-to-source voltage rated 500 V with 5 A continuous drain current (20 A pulsed), RDS(ON) typ 1.25 Ω at VGS = 10 V.
3 S passive Source; carries up to 5 A continuous body-diode current (IS) and 20 A pulsed (ISM).

Key specifications

Parameter Value
Manufacturer Fortior 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-to-Source Voltage VDSS 500 V Tc=25°C unless otherwise specified 1
Continuous Drain Current ID 5 A Tc=25°C unless otherwise specified 1
Gate-to-Source Voltage VGS -30 30 V 1
Avalanche Current IAR 2.5 A 1
Peak Diode Recovery dv/dt dv/dt 5 V/ns ISD=5A, di/dt≤100A/µs, VDD≤BVDSS, Start TJ=25℃ (footnote a3) 1
Operating Junction and Storage Temperature Range TJ,Tstg -55 150 °C 1
Drain to Source Breakdown Voltage VDSS 500 V VGS=0V, ID=250µA 2
Drain to Source Leakage Current I 1 µA VDS=500V, VGS=0V, Ta=25°C 2
Drain to Source Leakage Current I 10 µA VDS=400V, VGS=0V, Ta=125°C 2
Gate to Source Forward Leakage Current IGSS(F) 100 nA VGS=30V 2
Gate to Source Reverse Leakage Current IGSS(R) -100 nA VGS=-30V 2
Drain-to-Source On-Resistance RDS(ON) 1.25 1.5 Ω VGS=10V, ID=2.5A; pulse width tp≤380µs, δ≤2% 2
Gate Threshold Voltage VGS(TH) 3 5 V VDS=VGS, ID=250µA 2
Continuous Source Current (Body Diode) IS 5 A 3
Maximum Pulsed Current (Body Diode) ISM 20 A 3
Diode Forward Voltage VSD 1.5 V IS=5.0A, VGS=0V 3
Junction-to-Case Thermal Resistance RθJC 1.67 ℃/W 3
Junction-to-Ambient Thermal Resistance RθJA 62.5 ℃/W 3

CAD (KiCad official)

  • Symbol: FMD5N50E5
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252 (KiCad packages3D, STEP)
  • 3D model files: fmd5n50e5-etched.step / fmd5n50e5-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); fmd5n50e5.step / fmd5n50e5.glb are the bare package body.

Provenance

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

  • Datasheet: Fortior Tech datasheet (10 pp, sha256 14c03d989d839ec5, retrieved 2026-10-16, 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