# BAV99-RTK

**KEC Semicon** · Switching Diodes · SOT-23

BAV99-RTK from KEC Semicon, 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 | CATHODE 1 | passive | Cathode of the first diode in the BAV99 dual switching diode pair, rated for a maximum reverse voltage of 80 V (VRM 85 V) and a continuous forward current of 250 mA. |
| 2 | ANODE 2 | passive | Anode of the second diode in the BAV99 dual switching diode pair, rated for a maximum reverse voltage of 80 V and a continuous forward current of 250 mA. |
| 3 | ANODE 1 / CATHODE 2 | passive | Shared pin as printed in the datasheet, serving as the anode of diode 1 and the cathode of diode 2 in the series connection. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | KEC Semicon |
| Package | SOT-23 |
| Category | Diodes |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `BAV99-RTK`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `bav99-rtk-etched.step` / `bav99-rtk-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bav99-rtk.step` / `bav99-rtk.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [KEC Semicon datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588909440464793601) (2 pp, sha256 `3481c6238a3ae80f`, 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/bav99-rtk-datasheet.pdf)