# S9013 J3

**Changjing** · Bipolar (BJT) · SOT-23

S9013 J3 from Changjing, 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 terminal of the NPN BJT. Controls the collector current via base drive; typical VBE(sat)=1.2V max at IC=500mA / IB=50mA. VEBO breakdown = 5V. |
| 2 | E | passive | Emitter terminal of the NPN BJT. Common return in standard common-emitter usage; VCEO = 25V, VEBO = 5V. |
| 3 | C | passive | Collector terminal of the NPN BJT. Rated IC=500mA max, VCBO=40V, VCEO=25V; VCE(sat)=0.6V max at IC=500mA / IB=50mA. Collector power dissipation PC=300mW @ Ta=25C. |

## Key specifications

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

## Ordering variants

Same part, different packaging or reel option.

- `S9013 J3`

## CAD (KiCad official)

- Symbol: `S9013 J3`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `s9013-j3-etched.step` / `s9013-j3-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `s9013-j3.step` / `s9013-j3.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/8579712682343530496) (2 pp, sha256 `fee39c20da528316`, retrieved 2026-08-17, tier: lcsc)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/s9013-j3-datasheet.pdf)