component
SESM12
Public Made by Adomby adom
SEMIWARE ESD Protection Devices, 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
markdownSESM12
SEMIWARE · ESD Protection Devices · SOT-23
SESM12 from SEMIWARE, 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 | 1 | passive | TVS diode line 1 (anode of first diode); protects one line against ESD, with the SESM12 at VRWM 12.0 V max, VBR 13.3 V min at 1 mA. |
| 2 | 2 | passive | TVS diode line 2 (anode of second diode); protects a second unidirectional line, with the SESM12 at VRWM 12.0 V max, VBR 13.3 V min at 1 mA. |
| 3 | 3 | passive | Common cathode of both TVS diodes; for one bidirectional line, use pins 1 and 3 or 2 and 3 as shown in the pin diagram. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | SEMIWARE |
| Package | SOT-23 |
| Category | Circuit Protection |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
SESM12 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
sesm12-etched.step/sesm12-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sesm12.step/sesm12.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: SEMIWARE datasheet (4 pp, sha256
f3fecd7d1c03f780, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(vision), consensusclaude-opus-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).