# BC856BW

**Guangdong Hottech** · Bipolar (BJT) · SOT-323

BC856BW from Guangdong Hottech, in a SOT-323. 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 | B | input | Base of the PNP transistor; VEBO max -5 V, hFE 220-475 for the BC856BW rank at VCE=-5V, IC=-2mA. |
| 2 | E | passive | Emitter of the PNP transistor; emitter-base breakdown voltage V(BR)EBO min -5 V. |
| 3 | C | passive | Collector of the PNP transistor; VCBO -80 V, VCEO -65 V, IC max -100 mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Guangdong Hottech |
| Package | SOT-323 |
| Category | Transistors/Thyristors |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `BC856BW`
- Footprint: `Package_TO_SOT_SMD:SOT-323_SC-70`
- 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files: `bc856bw-etched.step` / `bc856bw-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bc856bw.step` / `bc856bw.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Guangdong Hottech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603120147234103296) (4 pp, sha256 `bd36a4f275eb162c`, 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/bc856bw-datasheet.pdf)