component
ESDA25L
Public Made by Adomby adom
STMicroelectronics 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
markdownESDA25L
STMicroelectronics · ESD And Surge Protection (TVS/ESD) · SOT-23
ESDA25L from STMicroelectronics, 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 | Line 1 protected by the first unidirectional TRANSIL (anode of diode to pin 3), protecting against ESD up to 25 kV (MIL STD 883C) and 300 W peak pulse power (8/20µs); can be used with pin 2 as a bidirectional suppressor. |
| 2 | I/O2 | passive | Line 2 protected by the second unidirectional TRANSIL (anode of diode to pin 3), protecting against ESD up to 25 kV (MIL STD 883C) and 300 W peak pulse power (8/20µs); can be used with pin 1 as a bidirectional suppressor. |
| 3 | GND | power_in | Common ground connection of both TRANSIL functions, to which ESD transients are diverted and which should be kept with the shortest possible return path to ground. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | SOT-23 |
| Category | Circuit Protection |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
ESDA25L - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
esda25l-etched.step/esda25l-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);esda25l.step/esda25l.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (6 pp, sha256
d4327e39971ef1f9, retrieved 2026-10-03, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+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).