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HY4008B

Public Made by Adom

by adom

HUAYI MOSFETs, TO-263-2L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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HY4008B

HUAYI · MOSFETs · TO-263-2L

HY4008B from HUAYI, in a TO-263-2L. 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 of the N-channel MOSFET, left lead as labelled G D S on the TO-263-2L view; VGS rating is ±25V and threshold is 2.0V min to 4.0V max at IDS=250μA.
2 D passive Drain, the middle position labelled D, shown as a short stub on the package drawing and connected to the metal tab; VDSS is 80V and continuous ID is 200A at TC=25°C.
3 S passive Source of the N-channel MOSFET, right lead as labelled G D S; the body diode continuous forward current IS is 200A at TC=25°C.

Key specifications

Parameter Value
Manufacturer HUAYI
Package TO-263-2L
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 80 V 2
Gate-Source Voltage VGSS -25 25 V 2
Maximum Junction Temperature TJ 175 °C 2
Storage Temperature Range TSTG -55 175 °C 2
Diode Continuous Forward Current IS 200 A TC=25°C 2
Continuous Drain Current ID 200 A TC=25°C 2
Continuous Drain Current ID 144 A TC=100°C 2
Maximum Power Dissipation PD 345 W TC=25°C 2
Maximum Power Dissipation PD 173 W TC=100°C 2
Thermal Resistance Junction to Case RθJC 0.43 °C/W 2
Thermal Resistance Junction to Ambient RθJA 62.5 °C/W 2
Zero Gate Voltage Drain Current IDSS 1 μA VDS=80V, VGS=0V 2
Zero Gate Voltage Drain Current IDSS 10 μA TJ=85°C 2
Gate Threshold Voltage VGS(th) 2 3 4 V VDS=VGS, IDS=250μA 2
Gate Leakage Current IGSS -100 100 nA VGS=±25V, VDS=0V 2
Diode Forward Voltage VSD 0.8 1.2 V ISD=100A, VGS=0V 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 tin Note: lead-free products contain molding compounds/die attach materials and 100% matte tin plate termination finish; which are fully compliant with RoHS. lead-free products meet or exceed the lead-fre 1

CAD (KiCad official)

  • Symbol: HY4008B
  • Footprint: Package_TO_SOT_SMD:TO-263-2
  • 3D model: TO-263-2L (KiCad packages3D, STEP)
  • 3D model files: hy4008b-etched.step / hy4008b-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); hy4008b.step / hy4008b.glb are the bare package body.

Provenance

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

  • Datasheet: HUAYI datasheet (14 pp, sha256 6207999744f47389, retrieved 2026-10-19, 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