component

SM12T1G-MS

Public Made by Adom

by adom

MSKSEMI ESD And Surge Protection (TVS/ESD), SOT-23. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.

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SM12T1G-MS

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

SM12T1G-MS from MSKSEMI, 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 I/O1 passive Unidirectional TVS diode 1 cathode, data line protection pin with VRWM 12.0 V and VBR 13.3 V min to 14.7 V max at 1 mA; the other side of the diode connects to pin 3.
2 I/O2 passive Unidirectional TVS diode 2 cathode, data line protection pin with VRWM 12.0 V and VBR 13.3 V min to 14.7 V max at 1 mA; the other side of the diode connects to pin 3.
3 COMMON passive Common anode of the two unidirectional TVS diodes, normally connected to ground.

Key specifications

Parameter Value
Manufacturer MSKSEMI
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
Breakdown voltage VBR 13.3 14 14.7 V IT = 1 mA 2
Capacitance C 25 pF 0 V bias 2
Peak pulse power PPP 300 W tp = 8/20μs 2
Lead solder temperature (maximum) TL 260 ºC 10 second duration 2
Storage temperature range Tstg -55 150 °C 2
Operating temperature range Top -40 125 °C 2
Maximum junction temperature Tj 150 °C 2
Electrostatic discharge, air discharge VPP 15 kV IEC61000-4-2 air discharge 2
Electrostatic discharge, contact discharge VPP 8 kV IEC61000-4-2 contact discharge 2

CAD (KiCad official)

  • Symbol: SM12T1G-MS
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: sm12t1g-ms-etched.step / sm12t1g-ms-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sm12t1g-ms.step / sm12t1g-ms.glb are the bare package body.

Provenance

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

  • Datasheet: MSKSEMI datasheet (5 pp, sha256 e182995b6a8212f0, retrieved 2026-10-21, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF