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Contents

README

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DMP45H4D9HJ3

Diodes Incorporated · MOSFETs · TO-251-3

DMP45H4D9HJ3 from Diodes Incorporated, in a TO-251-3. 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, with a maximum gate-source voltage of ±30V and a gate threshold of -3.0V to -5.0V at ID = -250µA.
2 D passive Drain terminal (also connected to the tab), rated for VDSS of -450V and continuous drain current of -4.6A at TC = +25°C.
3 S passive Source terminal, with a maximum body diode forward current of -3.0A.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package TO-251-3
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 -450 V TA = +25°C 2
Gate-Source Voltage VGSS -30 30 V TA = +25°C 2
Continuous Drain Current ID -4.6 A VGS = -10V, Steady State, TC = +25°C 2
Continuous Drain Current ID -3 A VGS = -10V, Steady State, TC = +100°C 2
Maximum Body Diode Forward Current IS -3 A Note 5 2
Pulsed Drain Current IDM -22.4 A 10µs Pulse, Duty Cycle = 1% 2
Avalanche Current IAS -2.5 A L = 60mH 2
Avalanche Energy EAS 187 mJ L = 60mH 2
Peak Diode Recovery dv/dt dv/dt 50 V/ns VDD = -400V, ID = -2.0A 2
Total Power Dissipation PD 104 W TC = +25°C 2
Total Power Dissipation PD 41 W TC = +100°C 2
Thermal Resistance, Junction to Ambient RθJA 40 °C/W Note 6: FR-4, 2oz copper, 1inch square pad 2
Thermal Resistance, Junction to Case RθJC 1.2 °C/W Note 5 2
Operating and Storage Temperature Range TJ, TSTG -55 150 °C 2
Drain-Source Breakdown Voltage BVDSS -450 V VGS = 0V, ID = -250µA 2
Zero Gate Voltage Drain Current IDSS -1 µA VDS = -450V, VGS = 0V 2
Gate-Source Leakage IGSS -100 100 nA VGS = ±30V, VDS = 0V 2
Gate Threshold Voltage VGS(TH) -3 -4 -5 V VDS = VGS, ID = -250µA 2
Static Drain-Source On-Resistance RDS(ON) 3.1 4.9 Ω VGS = -10V, ID = -1.05A 2
Diode Forward Voltage VSD -1.3 V VGS = 0V, IS = -2.1A 2
Input Capacitance Ciss 547 pF VDS = -25V, VGS = 0V, f = 1.0MHz 2
Output Capacitance Coss 74 pF VDS = -25V, VGS = 0V, f = 1.0MHz 2
Reverse Transfer Capacitance Crss 3.1 pF VDS = -25V, VGS = 0V, f = 1.0MHz 2
Total Gate Charge Qg 13.7 nC VDS = -360V, ID = -2.7A, VGS = -10V 2
Gate-Source Charge Qgs 3.4 nC VDS = -360V, ID = -2.7A, VGS = -10V 2
Gate-Drain Charge Qgd 6 nC VDS = -360V, ID = -2.7A, VGS = -10V 2
Turn-On Delay Time tD(ON) 19 ns VDD = -225V, RG = 3.0Ω, ID = -2.7A 2
Turn-On Rise Time tR 40 ns VDD = -225V, RG = 3.0Ω, ID = -2.7A 2
Turn-Off Delay Time tD(OFF) 32 ns VDD = -225V, RG = 3.0Ω, ID = -2.7A 2
Turn-Off Fall Time tF 31 ns VDD = -225V, RG = 3.0Ω, ID = -2.7A 2
Body Diode Reverse Recovery Time tRR 164 ns VGS = 0V, VDD = -200V, IS = -2.7A, dI/dt = 100A/μs 2
Body Diode Reverse Recovery Charge QRR 1.3 nC VGS = 0V, VDD = -200V, IS = -2.7A, dI/dt = 100A/μs 2

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts Copper tin  Terminal Connections: See Diagram  Terminals: Finish, Matte Tin Annealed over Copper Leadframe. 1

CAD (KiCad official)

  • Symbol: DMP45H4D9HJ3
  • Footprint: Package_TO_SOT_THT:TO-251-3_Vertical
  • 3D model: TO-251-3 (KiCad packages3D, STEP)
  • 3D model files: dmp45h4d9hj3-etched.step / dmp45h4d9hj3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); dmp45h4d9hj3.step / dmp45h4d9hj3.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (7 pp, sha256 06a3703fd375a540, retrieved 2026-10-22, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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