component
BAT54SFILMY
Public Made by Adomby adom
STMicroelectronics Schottky Diodes, SOT-23. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads on click. Unloads only if this page sits in the background.
PCB Footprint
Open full view ↗Loads on click. Unloads only if this page sits in the background.
Datasheet
Open in new tab ↗Loads on click. Unloads only if this page sits in the background.
README
markdownBAT54SFILMY
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bat54sfilmy.step/bat54sfilmy.glbare 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).