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FDD6637

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

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FDD6637

UMW · MOSFETs · TO-252

FDD6637 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 terminal of the -30 V P-channel MOSFET; the datasheet gives the gate-source voltage limit VGSS as ±25 V.
2 D passive DRAIN terminal; the datasheet rates drain-source voltage VDSS at -30 V and continuous drain current at -55 A (TC=25°C) or -13 A (TA=25°C).
3 S passive SOURCE terminal; the datasheet gives no separate pin-level limit, with the device VDSS at -30 V and VGSS at ±25 V applying across the source.

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 Avalanche Energy (Single Pulse) EAS 61 mJ VDD=-35V, ID=-11A, L=1mH 3
Drain-Source Avalanche Current IAS -14 A 3
Drain-Source Breakdown Voltage BVDSS -30 V VGS=0V, ID=-250µA 3
Zero Gate Voltage Drain Current IDSS -1 µA VDS=-28V, VGS=0V 3
Gate-Body Leakage IGSS -100 100 nA VGS=±25V, VDS=0V 3
Gate Threshold Voltage VGS(th) -1 1.6 -3 V VDS=VGS, ID=-250µA 3
Static Drain-Source On-Resistance (VGS=-10V) RDS(ON) 9.7 11.6 mΩ VGS=-10V, ID=-14A 3
Static Drain-Source On-Resistance (VGS=-4.5V) RDS(ON) 14.4 18 mΩ VGS=-4.5V, ID=-11A 3
Turn-On Delay Time tD(on) 18 32 ns VDD=-20V, ID=-1A, VGS=-10V, RGEN=6Ω 3
Turn-On Rise Time tr 10 20 ns VDD=-20V, ID=-1A, VGS=-10V, RGEN=6Ω 3
Turn-Off Delay Time tD(off) 62 100 ns VDD=-20V, ID=-1A, VGS=-10V, RGEN=6Ω 3
Turn-Off Fall Time tf 36 58 ns VDD=-20V, ID=-1A, VGS=-10V, RGEN=6Ω 3
Total Gate Charge, VGS = -10V Qg 45 63 nC VDS=-20V, ID=-14A 3
Total Gate Charge, VGS = -5V Qg 25 35 nC VDS=-20V, ID=-14A 3
Drain-Source Diode Forward Voltage VSD -0.8 -1.2 V VGS=0V, IS=-14A (Note 2) 3
Drain-Source Voltage VDSS -30 V TA=25°C 1
Drain-Source Avalanche Voltage (maximum) (Note 4) VDS(Avalanche) -40 V TA=25°C 1
Gate-Source Voltage VGSS -25 25 V TA=25°C 1
Continuous Drain Current ID -55 A TC=25°C (Note 3) 1
Continuous Drain Current ID -13 A TA=25°C (Note 1a) 1
Pulsed Drain Current ID -100 A Pulsed (Note 1a) 1
Power Dissipation PD 57 W TC=25°C (Note 3) 1
Power Dissipation PD 3.1 W TA=25°C (Note 1a) 1
Power Dissipation PD 1.3 W TA=25°C (Note 1b) 1
Operating and Storage Junction Temperature Range TJ, TSTG -55 150 °C 1
Thermal Resistance, Junction-to-Case RθJC 2.2 °C/W Note 1 2
Thermal Resistance, Junction-to-Ambient RθJA 40 °C/W Note 1a: mounted on 1 in² pad of 2oz copper 2
Thermal Resistance, Junction-to-Ambient RθJA 96 °C/W Note 1b: mounted on minimum pad 2

CAD (KiCad official)

  • Symbol: FDD6637
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252 (KiCad packages3D, STEP)
  • 3D model files: fdd6637-etched.step / fdd6637-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); fdd6637.step / fdd6637.glb are the bare package body.

Provenance

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

  • Datasheet: UMW datasheet (11 pp, sha256 f746540cab151b09, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-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