# 2SC4617

**TWGMC** · Bipolar (BJT) · SOT-523

2SC4617 from TWGMC, in a SOT-523. 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's emitter-base voltage rating VEBO is 7 V. |
| 2 | EMITTER | passive | Emitter terminal of the NPN transistor; emitter-base breakdown voltage V(BR)EBO is 7 V minimum at IE=50 µA. |
| 3 | COLLECTOR | passive | Collector terminal of the NPN transistor, rated for a collector-emitter voltage VCEO of 50 V, continuous collector current IC of 150 mA, and collector power dissipation PC of 150 mW. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TWGMC |
| Package | SOT-523 |
| Category | Transistors/Thyristors |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `2SC4617`
- Footprint: `Package_TO_SOT_SMD:SOT-523`
- 3D model: SOT-523 (KiCad packages3D, STEP)
- 3D model files: `2sc4617-etched.step` / `2sc4617-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `2sc4617.step` / `2sc4617.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TWGMC datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590457342090244096) (3 pp, sha256 `905fd76e29e7d654`, 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/2sc4617-datasheet.pdf)