# MMBTSC2712

**CBI** · Bipolar (BJT) · SOT-23

MMBTSC2712 from CBI, 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 | Base | input | Base terminal of the NPN transistor; the datasheet limits base current to IB = 30 mA (max. absolute rating). |
| 2 | Emitter | passive | Emitter terminal of the NPN transistor; the emitter-base voltage is limited to VEBO = 5 V in the absolute maximum ratings. |
| 3 | Collector | passive | Collector terminal of the NPN transistor; limited to VCBO = 60 V, VCEO = 50 V and IC = 150 mA (max.) in the absolute maximum ratings. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `MMBTSC2712`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `mmbtsc2712-etched.step` / `mmbtsc2712-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mmbtsc2712.step` / `mmbtsc2712.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [CBI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588954652100059136) (4 pp, sha256 `abc01ef906350e32`, 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/mmbtsc2712-datasheet.pdf)