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Contents

README

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FH4604D

XIN FEI HONG · MOSFETs · TO-252-4L

FH4604D from XIN FEI HONG, in a TO-252-4L. 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 S1 passive Source of the N-channel MOSFET (VDS 40V, ID 25A at TC=25°C, VGS ±20V).
2 G1 input Gate of the N-channel MOSFET (VGS ±20V max, VGS(th) 1.0 to 2.0V).
3 S2 passive Source of the P-channel MOSFET (VDS -40V, ID -21A at TC=25°C, VGS ±20V).
4 G2 input Gate of the P-channel MOSFET (VGS ±20V max, VGS(th) -1.0 to -2.0V).
5 D1/D2 passive Exposed tab, common drain of the N-channel (D1) and P-channel (D2) MOSFETs, joined as in the H-bridge half-bridge schematic and used for heat dissipation.

Key specifications

Parameter Value
Manufacturer XIN FEI HONG
Package TO-252-4L
Category Triode/MOS Tube/Transistor
Pins 5

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
N-Channel Drain-Source Breakdown Voltage BVDSS 40 45 V VGS=0V ID=250μA 2
N-Channel Zero Gate Voltage Drain Current IDSS 1 μA VDS=40V,VGS=0V 2
N-Channel Gate-Body Leakage Current IGSS -100 100 nA VGS=±20V,VDS=0V 2
N-Channel Gate Threshold Voltage VGS(th) 1 1.5 2 V VDS=VGS,ID=250μA 2
N-Channel Drain-Source On-State Resistance RDS(ON) 14 19 mΩ VGS=10V, ID=6A 2
N-Channel Drain-Source On-State Resistance RDS(ON) 19 24 mΩ VGS=4.5V, ID=4A 2
N-Channel Diode Forward Voltage VSD 1.2 V VGS=0V,IS=6A 2
N-Channel Diode Forward Current IS 20 A Note 2 2
P-Channel Drain-Source Breakdown Voltage BVDSS -40 -45 V VGS=0V ID=-250μA 5
P-Channel Zero Gate Voltage Drain Current IDSS -1 μA VDS=-40V,VGS=0V 5
P-Channel Gate-Body Leakage Current IGSS -100 100 nA VGS=±20V,VDS=0V 5
P-Channel Gate Threshold Voltage VGS(th) -2 -1.5 -1 V VDS=VGS,ID=-250μA 5
P-Channel Drain-Source On-State Resistance RDS(ON) 28 34 mΩ VGS=-10V, ID=-5A 5
P-Channel Drain-Source On-State Resistance RDS(ON) 39 47 mΩ VGS=-4.5V, ID=-4A 5
P-Channel Diode Forward Voltage VSD -1.2 V VGS=0V,IS=-5 5
P-Channel Diode Forward Current IS -15 A Note 2 5
Drain-Source Voltage (N-Channel) VDS 40 V 1
Drain-Source Voltage (P-Channel) VDS -40 V 1
Gate-Source Voltage (N-Channel) VGS -20 20 V 1
Gate-Source Voltage (P-Channel) VGS -20 20 V 1
Continuous Drain Current (N-Channel) ID 25 A TC=25℃ 1
Continuous Drain Current (P-Channel) ID -21 A TC=25℃ 1
Continuous Drain Current (N-Channel) ID 13 A TC=100℃ 1
Continuous Drain Current (P-Channel) ID -11 A TC=100℃ 1
Pulsed Drain Current (N-Channel) IDM 75 A Note 1 1
Pulsed Drain Current (P-Channel) IDM -63 A Note 1 1
Maximum Power Dissipation PD 23 W TC=25℃ 1
Operating Junction and Storage Temperature Range TJ,TSTG -55 150 ℃ 1
Thermal Resistance, Junction-to-Case RθJC 9 ℃/W Note 2 1

CAD (KiCad official)

  • Symbol: FH4604D
  • Footprint: Package_TO_SOT_SMD:TO-252-4
  • 3D model: TO-252-4L (KiCad packages3D, STEP)
  • 3D model files: fh4604d-etched.step / fh4604d-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); fh4604d.step / fh4604d.glb are the bare package body.

Provenance

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

  • Datasheet: XIN FEI HONG datasheet (8 pp, sha256 b608a02892afae92, retrieved 2026-10-20, 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