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BAT54SFILMY

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STMicroelectronics Schottky Diodes, SOT-23. Pinout reviewed by a person 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 bat54sfilmy: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
viewers bat54sfilmy: viewers · Ray 6d ago
bat54sfilmy-etched.fit.json bat54sfilmy: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
bat54sfilmy-etched.glb bat54sfilmy: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
bat54sfilmy-etched.step bat54sfilmy: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
bat54sfilmy.glb Publish 0.1.0 · Ray 6d ago
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README.md Initial commit: component/bat54sfilmy · Ray 6d ago

BAT54SFILMY

STMicroelectronics · Schottky Diodes · SOT-23

BAT54SFILMY 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 K1/A2 passive One outer terminal of the internal series-connected Schottky diode pair (BAT54S 'series' configuration); shown in the SOT23-3L mechanical outline (Figure 8) as pin 1, one of the two leads on the two-pin side of the package.
2 K1/A2 passive Other outer terminal of the internal series-connected Schottky diode pair (BAT54S 'series' configuration); shown in the SOT23-3L mechanical outline (Figure 8) as pin 2, the second lead on the two-pin side of the package.
3 Common node passive Single lead on the opposite side of the package (Figure 8, pin 3); per the 'series' schematic on page 1 this is the internal junction node between the two series-connected diodes.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package SOT-23
Category Diodes
Pins 3

CAD (KiCad official)

  • Symbol: BAT54SFILMY
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: bat54sfilmy-etched.step / bat54sfilmy-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bat54sfilmy.step / bat54sfilmy.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (11 pp, sha256 e2f21edc30e85ada, retrieved 2026-09-29, tier: lcsc)
  • 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