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ESDAULC45-1BF4

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STMicroelectronics ESD And Surge Protection (TVS/ESD), 0201. Pinout settled in review by an AI reviewer against the manufacturer's datasheet, KiCad symbol/footprint/3D.

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Made with kicad-footprint-generator 10.0 · KiCad file format 20260206
Name Last commit message Last updated
docs esdaulc45-1bf4: etched from the flattened plain STEP (service-occt 1.6.0, from the plain STEP) · Ray 24d ago
viewers esdaulc45-1bf4: symbol repaired (bidirectional TVS (the page says so)) · Ray 5d ago
esdaulc45-1bf4-etched.fit.json esdaulc45-1bf4: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
esdaulc45-1bf4-etched.glb esdaulc45-1bf4: etched from the flattened plain STEP (service-occt 1.6.0, from the plain STEP) · Ray 24d ago
esdaulc45-1bf4-etched.step esdaulc45-1bf4: etched from the flattened plain STEP (service-occt 1.6.0, from the plain STEP) · Ray 24d ago
esdaulc45-1bf4-hero.glb esdaulc45-1bf4: etched from the flattened plain STEP (service-occt 1.6.0, from the plain STEP) · Ray 24d ago
esdaulc45-1bf4-hero.overlay.json esdaulc45-1bf4: etched from the flattened plain STEP (service-occt 1.6.0, from the plain STEP) · Ray 24d ago
esdaulc45-1bf4.glb plain STEP: one free product with face colours (generated model was nested; tscircuit read it white) · Ray 24d ago
esdaulc45-1bf4.kicad_mod Publish 0.2.0 · Ray 1mo ago
esdaulc45-1bf4.kicad_sym esdaulc45-1bf4: symbol repaired (bidirectional TVS (the page says so)) · Ray 5d ago
esdaulc45-1bf4.lbr esdaulc45-1bf4: symbol repaired (bidirectional TVS (the page says so)) · Ray 5d ago
esdaulc45-1bf4.step plain STEP: one free product with face colours (generated model was nested; tscircuit read it white) · Ray 24d ago
package.json esdaulc45-1bf4: etched from the flattened plain STEP (service-occt 1.6.0, from the plain STEP) · Ray 24d ago
page.json brief: say who settled the pinout (an AI reviewer or models), not a person · Ray 4d ago
README.md Publish 0.2.0 · Ray 1mo ago

ESDAULC45-1BF4

STMicroelectronics · ESD And Surge Protection (TVS/ESD) · 0201

ESDAULC45-1BF4 from STMicroelectronics, in a 0201. 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 Pin 1 passive Pin 1 is marked by the bar on the package and is the orientation reference for placement, per the footprint and marking figures; the datasheet gives no separate electrical function or limit for this terminal.
2 Pin 2 passive Pin 2 is the second terminal of this bidirectional single-line ESD protection diode shown in the 0201 footprint; the datasheet gives no separate electrical function or limit for this terminal.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package 0201
Category Circuit Protection
Pins 2

CAD (KiCad official)

  • Symbol: ESDAULC45-1BF4
  • Footprint: Diode_SMD:D_0201_0603Metric
  • 3D model: 0201, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.3 mm nominal 01005 height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)

Provenance

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

  • Datasheet: STMicroelectronics datasheet (12 pp, sha256 b9811d5275f131b1, retrieved 2026-10-08, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF