# 2SC1815-TA

**Changjing** · Bipolar (BJT) · TO-92-2.54mm

2SC1815-TA from Changjing, in a TO-92-2.54mm. 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 | EMITTER | passive | Emitter of the NPN transistor; emitter-base voltage max 5 V and V(BR)EBO min 5 V. |
| 2 | COLLECTOR | passive | Collector of the NPN transistor; VCBO 60 V, VCEO 50 V, continuous collector current 0.15 A max. |
| 3 | BASE | passive | Base of the NPN transistor; hFE 70 to 700 at VCE=6 V, IC=2 mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | TO-92-2.54mm |
| Category | Transistors/Thyristors |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `2SC1815-TA`
- Footprint: `Package_TO_SOT_THT:TO-92_Inline`
- 3D model: TO-92-2.54mm (KiCad packages3D, STEP)
- 3D model files: `2sc1815-ta-etched.step` / `2sc1815-ta-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `2sc1815-ta.step` / `2sc1815-ta.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Changjing datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588895099988422656) (5 pp, sha256 `2fdb219121b9ab4a`, retrieved 2026-10-17, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (vision), consensus `claude-opus-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/2sc1815-ta-datasheet.pdf)