# BC816-25HVL

**Nexperia** · Bipolar (BJT) · SOT-23

BC816-25HVL from Nexperia, 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 | B | input | Base of the NPN transistor; the datasheet limits peak base current IBM to 200 mA (single pulse, tp ≤ 1 ms, Tamb = 25 °C). |
| 2 | E | passive | Emitter of the NPN transistor; the datasheet gives an emitter-base voltage limit VEBO of 7 V (open collector, Tamb = 25 °C). |
| 3 | C | passive | Collector of the NPN transistor; the datasheet limits VCEO to 80 V (open base) and IC to 500 mA at Tamb = 25 °C. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Nexperia |
| Package | SOT-23 |
| Category | Transistors/Thyristors |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `BC816-25HVL`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `bc816-25hvl-etched.step` / `bc816-25hvl-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bc816-25hvl.step` / `bc816-25hvl.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/8603093137510449152) (16 pp, sha256 `d1bbd56c2713eb10`, 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/bc816-25hvl-datasheet.pdf)