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GSOT03C-E3-08

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UMW ESD And Surge Protection (TVS/ESD), SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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GSOT03C-E3-08

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

GSOT03C-E3-08 from UMW, in a SOT-23. 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 1 passive Protected signal/data line L1 in BiAs mode, clamped to pin 3 with a maximum reverse working voltage VRWM of 3.3 V for GSOT03C and rated for ESD immunity of ±30 kV contact and air discharge per IEC 61000-4-2.
2 2 passive Second protected signal/data line L2 in BiAs mode, clamped to pin 3 with VRWM of 3.3 V for GSOT03C; in BiSy single-line mode it is tied to ground instead, and in that mode the pin 1 to pin 2 path has VRWM of 3.8 V.
3 3 power_in Ground reference pin connected to system ground in BiAs two-line mode, with the protection diodes from pins 1 and 2 returning to it; it must be left unconnected in BiSy single-line mode.

Key specifications

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

CAD (KiCad official)

  • Symbol: GSOT03C-E3-08
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: gsot03c-e3-08-etched.step / gsot03c-e3-08-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); gsot03c-e3-08.step / gsot03c-e3-08.glb are the bare package body.

Provenance

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

  • Datasheet: UMW datasheet (21 pp, sha256 0b440e1da93472e0, 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