# MMBTA14

**Slkor SLKORMICRO Elec** · Darlington Transistors · SOT-23

MMBTA14 from Slkor SLKORMICRO Elec, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | B | input | Base - control input of the NPN Darlington transistor; VEBO max 10 V, hFE min 10000 (IC=10 mA) / 20000 (IC=100 mA). |
| 2 | E | passive | Emitter - NPN Darlington emitter terminal; VBE(sat) max 2 V at IC=100 mA, IB=0.1 mA. |
| 3 | C | passive | Collector - NPN Darlington collector terminal; VCEO max 30 V, IC max 300 mA, VCE(sat) max 1.5 V at IC=100 mA, IB=0.1 mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Slkor SLKORMICRO Elec |
| Package | SOT-23 |
| Category | Transistors/Thyristors |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `MMBTA14`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `mmbta14-etched.step` / `mmbta14-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mmbta14.step` / `mmbta14.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Slkor SLKORMICRO Elec datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603346629005635584) (5 pp, sha256 `2d79d948d5debd68`, retrieved 2026-09-21, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-sonnet-4-6` (vision), consensus `claude-opus-4-7` (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/mmbta14-datasheet.pdf)