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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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HSMF30AT1G

HXY MOSFET · ESD And Surge Protection (TVS/ESD) · SOD-123FL

HSMF30AT1G from HXY MOSFET, in a SOD-123FL. 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 K passive Cathode, the terminal marked by the cathode band on the SOD-123FL body; the unidirectional HSMF30AT1G has VRWM 30 V, breakdown 33.3-36.8 V at 1 mA and maximum clamping voltage 48.4 V at 4.1 A.
2 A passive Anode, the terminal opposite the cathode band; it connects to the protected line's return, usually ground, for the unidirectional HSMF30AT1G.

Key specifications

Parameter Value
Manufacturer HXY MOSFET
Package SOD-123FL
Category Circuit Protection
Pins 2

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Breakdown Voltage VBR 33.3 36.8 V @IT=1mA 1
Reverse Stand-Off Voltage VRWM 30 V 1
Maximum Clamping Voltage VC 48.4 V @IPP=4.1A 1
Reverse Leakage IR 1 μA @VRWM 1
Steady state power dissipation PM(AV) 1 W TA=50℃ 1
Peak forward surge current IFSM 30 A 8.3ms single half sine-wave superimposed on rated load 1
Operating junction and storage temperature range TJ,TSTG -65 150 °C 1
Thermal resistance junction to lead RθJL 38 °C/W Typical 1
Thermal resistance junction to ambient RθJA 180 °C/W Typical 1

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 2. Mounted on 5.0mm×5.0mm (0.03mm thick) copper pads to each terminal. 1

CAD (KiCad official)

  • Symbol: HSMF30AT1G
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123FL (KiCad packages3D, STEP)
  • 3D model files: hsmf30at1g-etched.step / hsmf30at1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); hsmf30at1g.step / hsmf30at1g.glb are the bare package body.

Provenance

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

  • Datasheet: HXY MOSFET datasheet (4 pp, sha256 cb9fc2d082226b55, retrieved 2026-10-30, tier: lcsc)
  • 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