# BAT54SX

**Shenzhen JingYang** · Schottky Diodes · SOT-23

BAT54SX from Shenzhen JingYang, 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 | ANODE | passive | Anode of the first Schottky diode in the BAT54S series pair, which is rated for 30 V VRRM/VRWM/VR and 200 mA continuous forward current. |
| 2 | CATHODE | passive | Cathode of the second Schottky diode in the BAT54S series pair, rated for 30 V reverse voltage. |
| 3 | CATHODE/ANODE | passive | Series midpoint joining the cathode of the first diode to the anode of the second diode in the BAT54S. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Shenzhen JingYang |
| Package | SOT-23 |
| Category | Diodes |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `BAT54SX`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `bat54sx-etched.step` / `bat54sx-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bat54sx.step` / `bat54sx.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Shenzhen JingYang datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603131208708734976) (3 pp, sha256 `76bb47f70f7f88f8`, retrieved 2026-10-09, tier: lcsc)
- **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](docs/bat54sx-datasheet.pdf)