# BC868

**Nexperia** · Bipolar (BJT) · SOT-89

BC868 from Nexperia, in a SOT-89. 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 | emitter | passive | Emitter terminal of the NPN transistor; the datasheet limits the emitter-base voltage to 5 V (VEBO, open collector). |
| 2 | collector | passive | Collector terminal of the NPN transistor; the datasheet limits the collector current to 2 A (IC), with a 3 A peak (ICM, single pulse, tp ≤ 1 ms). |
| 3 | base | passive | Base terminal of the NPN transistor; the datasheet limits the base current to 0.4 A (IB), with a 0.4 A peak (IBM, single pulse, tp ≤ 1 ms). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Nexperia |
| Package | SOT-89 |
| Category | Transistors/Thyristors |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `BC868`
- Footprint: `Package_TO_SOT_SMD:SOT-89-3`
- 3D model: SOT-89 (KiCad packages3D, STEP)
- 3D model files: `bc868-etched.step` / `bc868-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bc868.step` / `bc868.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Nexperia datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586183957745946624) (23 pp, sha256 `b75f4ed10eba583e`, retrieved 2026-10-09, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-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/bc868-datasheet.pdf)