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ESDA37LY

Public Made by Adom

by adom

STMicroelectronics ESD And Surge Protection (TVS/ESD), SOT-23. 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 Publish 0.1.0 · Ray 2d ago
viewers esda37ly: viewers · Ray 2d ago
esda37ly-etched.glb esda37ly: factory component page (tier=mfr) · Ray 2d ago
esda37ly-etched.step esda37ly: factory component page (tier=mfr) · Ray 2d ago
esda37ly-hero.glb esda37ly: hero GLB from the etched model (keeps the MPN mark) · Ray 1d ago
esda37ly-hero.overlay.json Publish 0.1.0 · Ray 2d ago
esda37ly.glb Publish 0.1.0 · Ray 2d ago
esda37ly.kicad_mod Publish 0.1.0 · Ray 2d ago
esda37ly.kicad_sym Publish 0.1.0 · Ray 2d ago
esda37ly.lbr Publish 0.1.0 · Ray 2d ago
esda37ly.step Publish 0.1.0 · Ray 2d ago
package.json Publish 0.1.0 · Ray 2d ago
page.json Set visibility: public · Ray 2d ago
README.md Initial commit: component/esda37ly · Ray 2d ago

ESDA37LY

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

ESDA37LY 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 Protected line 1 (Transil cathode, unidirectional diode to pin 3), with 37 V min and 43.3 V max breakdown voltage at 1 mA and 36 V stand-off voltage; pins 1 and 2 alone form a bidirectional suppressor.
2 I/O2 passive Protected line 2 (Transil cathode, unidirectional diode to pin 3), with 37 V min and 43.3 V max breakdown voltage at 1 mA and 36 V stand-off voltage; pins 1 and 2 alone form a bidirectional suppressor.
3 GND power_in Common anode of both Transil diodes, connected to ground as the return for ESD and surge current (up to 6.3 A peak pulse current, 8/20 µs).

Key specifications

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

CAD (KiCad official)

  • Symbol: ESDA37LY
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: esda37ly-etched.step / esda37ly-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); esda37ly.step / esda37ly.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (12 pp, sha256 ae72cb53fa1cc894, retrieved 2026-10-07, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (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