component

ESDA25LY

Public Made by Adom

by adom

STMicroelectronics ESD And Surge Protection (TVS/ESD), SOT-23-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
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docs esda25ly: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
viewers esda25ly: viewers · Ray 4d ago
esda25ly-etched.fit.json esda25ly: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
esda25ly-etched.glb esda25ly: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
esda25ly-etched.step esda25ly: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
esda25ly.glb Publish 0.1.0 · Ray 4d ago
esda25ly.kicad_mod Publish 0.1.0 · Ray 4d ago
esda25ly.kicad_sym Publish 0.1.0 · Ray 4d ago
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README.md Initial commit: component/esda25ly · Ray 4d ago

ESDA25LY

STMicroelectronics · ESD And Surge Protection (TVS/ESD) · SOT-23-3

ESDA25LY from STMicroelectronics, in a SOT-23-3. 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 IO1 passive Anode of unidirectional TVS diode 1; ESD-protected signal line with VBR 25-30 V, IRM max 1 µA at VRM = 24 V, Cline 50 pF typ at 0 V bias, Ipp max 7 A (8/20 µs); when only pins 1 and 2 are used device acts as bidirectional suppressor.
2 IO2 passive Anode of unidirectional TVS diode 2; second ESD-protected signal line sharing identical electrical characteristics (VBR 25-30 V, Cline 50 pF typ, Ipp max 7 A at 8/20 µs); cathode tied to pin 3.
3 GND power_in Common cathode of both TVS diodes; connects to the ground reference plane; peak pulse power into this node 300 W (8/20 µs), operating junction temperature -40 to +150 °C.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package SOT-23-3
Category Circuit Protection
Pins 3

CAD (KiCad official)

  • Symbol: ESDA25LY
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3 (KiCad packages3D, STEP)
  • 3D model files: esda25ly-etched.step / esda25ly-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); esda25ly.step / esda25ly.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: STMicroelectronics datasheet (12 pp, sha256 f99725629ff69da5, retrieved 2026-10-01, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-sonnet-4-6 (text+vision), consensus claude-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).

Datasheet PDF