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Contents

README

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SM05-02HTG

Littelfuse · ESD And Surge Protection (TVS/ESD) · SOT-23-3

SM05-02HTG from Littelfuse, in a SOT-23-3. 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 I/O1 bidirectional Protected line that clamps to pin 3 at 9.8 V at 1 A and 13.0 V at 10 A (8/20 µs) for SM05, with a 5.0 V reverse standoff and ±30 kV IEC 61000-4-2 ESD withstand.
2 I/O2 bidirectional Protected line that clamps to pin 3 at 9.8 V at 1 A and 13.0 V at 10 A (8/20 µs) for SM05, with a 5.0 V reverse standoff and ±30 kV IEC 61000-4-2 ESD withstand.
3 GND power_in Common reference for both protected lines; the SM05 clamp conditions are specified from pin 1 or pin 2 to pin 3, with a maximum peak pulse current of 24.0 A (8/20 µs).

Key specifications

Parameter Value
Manufacturer Littelfuse
Package SOT-23-3
Category Circuit Protection
Pins 3

CAD (KiCad official)

  • Symbol: SM05-02HTG
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3 (KiCad packages3D, STEP)
  • 3D model files: sm05-02htg-etched.step / sm05-02htg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sm05-02htg.step / sm05-02htg.glb are the bare package body.

Provenance

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

  • Datasheet: Littelfuse datasheet (6 pp, sha256 44cd0b6b23f8d7d3, retrieved 2026-10-09, 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