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SM12-02HTG
Public Made by Adomby adom
UMW ESD And Surge Protection (TVS/ESD), SOT-23. Pinout cross-checked by two models 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
markdownSM12-02HTG
UMW · ESD And Surge Protection (TVS/ESD) · SOT-23
SM12-02HTG 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 | I/O1 | bidirectional | Bidirectional TVS protection line rated for a 12V working voltage, clamping to Pin 3 with ±30kV contact and air ESD withstand per IEC 61000-4-2. |
| 2 | I/O2 | bidirectional | Bidirectional TVS protection line rated for a 12V working voltage, clamping to Pin 3 with ±30kV contact and air ESD withstand per IEC 61000-4-2. |
| 3 | GND | power_in | Common reference pin to which Pin 1 and Pin 2 clamp during surge and ESD events. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| 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 | PPK | 400 | W | tp=8/20μs | 2 | ||
| Junction Temperature | TOP | -40 | 125 | °C | 2 | ||
| Storage Temperature | TSTOR | -55 | 150 | °C | 2 | ||
| Reverse Stand off Voltage | VRWM | 12 | V | IR≤1µA | 3 | ||
| Reverse Voltage Drop | VR | 13.3 | V | IR=1mA | 3 | ||
| Leakage Current | ILEAK | 1 | µA | VR=12V | 3 | ||
| ESD Withstand Voltage | VESD | -30 | 30 | kV | IEC 61000-4-2 (Contact Discharge) | 3 | |
| Clamp Voltage | VC | 18.5 | V | IPP=1A, tp=8/20µs, Pin 1 or Pin 2 to Pin 3 | 3 | ||
| Clamp Voltage | VC | 22.5 | V | IPP=10A, tp=8/20µs, Pin 1 or Pin 2 to Pin 3 | 3 | ||
| Dynamic Resistance | RDYN | 0.25 | Ω | TLP, tp=100ns, I/O to GND | 3 | ||
| Peak Pulse Current (8/20µs) | IPP | 17 | A | tp=8/20µs | 3 | ||
| Diode Capacitance | CI/O-GND | 150 | pF | Reverse Bias=0V, f=1MHz | 3 | ||
| Diode Capacitance | CI/O-I/O | 120 | pF | Reverse Bias=0V, f=1MHz | 3 |
CAD (KiCad official)
- Symbol:
SM12-02HTG - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
sm12-02htg-etched.step/sm12-02htg-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sm12-02htg.step/sm12-02htg.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: UMW datasheet (11 pp, sha256
0e09b07cb6bbf5ef, retrieved 2026-11-05, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).