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Contents

README

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SM712X

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

SM712X from Shenzhen JingYang, 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 Pin1 bidirectional Protected data line with TVS clamping to pin 3: 12 V working voltage for pin 1 to pin 3 polarity and 7 V working voltage for pin 3 to pin 1 polarity, with 50 pF typical parasitic capacitance.
2 Pin2 bidirectional Protected data line with TVS clamping to pin 3: 12 V working voltage for pin 2 to pin 3 polarity and 7 V working voltage for pin 3 to pin 2 polarity, with 50 pF typical parasitic capacitance.
3 Pin3 passive Common terminal shared by the two 12 V and two 7 V TVS diode paths on pins 1 and 2; the datasheet does not specify it as a ground or supply pin.

Key specifications

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

CAD (KiCad official)

  • Symbol: SM712X
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: sm712x-etched.step / sm712x-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sm712x.step / sm712x.glb are the bare package body.

Provenance

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

  • Datasheet: Shenzhen JingYang datasheet (6 pp, sha256 62b35875f755c660, 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