component

SM03CN

Public Made by Adom

by adom

Wild Goose 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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Symbol & Footprint

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Datasheet

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Contents

README

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SM03CN

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

SM03CN from Wild Goose, 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 LINE1 passive Protected line 1, bidirectional ESD clamp to the common pin with 3.3V max reverse working voltage and ±30kV IEC61000-4-2 air/contact rating.
2 LINE2 passive Protected line 2, bidirectional ESD clamp to the common pin with 3.3V max reverse working voltage and ±30kV IEC61000-4-2 air/contact rating.
3 COMMON passive Common pin shared by both protection diodes, connected to ground/reference in the circuit diagram.

Key specifications

Parameter Value
Manufacturer Wild Goose
Package SOT-23
Category Circuit Protection
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
Peak pulse power (tp = 8/20 μS) PPPM 450 W tp = 8/20 μS 2
Peak pulse current (tp = 8/20 μS) IPPM 38 A tp = 8/20 μS 2
Maximum lead temperature for soldering TL 260 during 10s 2
Storage temperature range Tstg -55 150 2
Operating temperature range TOP -40 125 2
Maximum junction temperature TJ 150 2
ESD voltage, IEC61000-4-2 air discharge VESD 30 kv IEC61000-4-2 air discharge 2
ESD voltage, IEC61000-4-2 contact discharge VESD 30 kv IEC61000-4-2 contact discharge 2
Breakdown voltage VBR 4 V T= 1mA 2
Leakage current IR 200 nA VRWM=3.3V 2
Clamping voltage VCL 12 V Ipp=38A,TP=8/20μS 2
Junction capacitance CJ 70 pF VR=0V f=1MHz 2

CAD (KiCad official)

  • Symbol: SM03CN
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: sm03cn-etched.step / sm03cn-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sm03cn.step / sm03cn.glb are the bare package body.

Provenance

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

  • Datasheet: Wild Goose datasheet (3 pp, sha256 4f1858ed340735b0, retrieved 2026-10-17, 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