# BAR43CFILM

**STMicroelectronics** · Global Sourcing Parts · SOT-23-3L

BAR43CFILM from STMicroelectronics, in a SOT-23-3L. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | A1 | passive | Anode of diode 1; VF max 0.33 V at IF = 2 mA, 0.45 V at IF = 15 mA (Tj = 25 °C). |
| 2 | A2 | passive | Anode of diode 2; VF max 0.33 V at IF = 2 mA, 0.45 V at IF = 15 mA (Tj = 25 °C). |
| 3 | K | passive | Common cathode of both Schottky diodes; VRRM = 30 V, IR max 500 nA at VR = VRRM, Tj = 25 °C. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | SOT-23-3L |
| Category | Global Sourcing Parts |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `BAR43CFILM`
- Footprint: `Package_TO_SOT_SMD:SOT-23-3`
- 3D model: SOT-23-3L (KiCad packages3D, STEP)
- 3D model files: `bar43cfilm-etched.step` / `bar43cfilm-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bar43cfilm.step` / `bar43cfilm.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [STMicroelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586199103235895296) (7 pp, sha256 `e965d2b77f22fd7d`, retrieved 2026-09-21, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-sonnet-4-6` (text+vision), consensus `claude-opus-4-7` (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](docs/bar43cfilm-datasheet.pdf)