component
SM12T1G-MS
Public Made by Adomby adom
MSKSEMI ESD And Surge Protection (TVS/ESD), SOT-23. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSM12T1G-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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sm12t1g-ms.step/sm12t1g-ms.glbare 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).