component
SM712-02HTG
Public Made by Adomby adom
Littelfuse 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
markdownSM712-02HTG
Littelfuse · ESD And Surge Protection (TVS/ESD) · SOT-23
SM712-02HTG from Littelfuse, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | IO1 | bidirectional | RS-485 I/O line protection pin 1; reverse standoff voltage 12V (Pin 1 to Pin 3, IR≤1μA) and 7V (Pin 3 to Pin 1, IR≤1μA); clamp voltage 31V max at IPP=19A (tp=8/20μs, Pin 1 to Pin 3); capacitance 75pF typ at 0V reverse bias, 1MHz. |
| 2 | IO2 | bidirectional | RS-485 I/O line protection pin 2; reverse standoff voltage 12V (Pin 2 to Pin 3, IR≤1μA) and 7V (Pin 3 to Pin 2, IR≤1μA); clamp voltage 31V max at IPP=19A (tp=8/20μs, Pin 2 to Pin 3); capacitance 75pF typ at 0V reverse bias, 1MHz. |
| 3 | GND | power_in | Ground reference; common node for asymmetrical TVS array; working voltage range -7V to +12V is referenced to this pin; rated for peak pulse current IPP=19A (tp=8/20μs). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Littelfuse |
| Package | SOT-23 |
| Category | Circuit Protection |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
SM712-02HTG - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
sm712-02htg-etched.step/sm712-02htg-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sm712-02htg.step/sm712-02htg.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Littelfuse datasheet (5 pp, sha256
5d53e47203561da7, retrieved 2026-09-23, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(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).