# CJ2101

**Changjiang Electronics Tech (CJ)** · MOSFETs · SOT-323

CJ2101 from Changjiang Electronics Tech (CJ), in a SOT-323. 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 | GATE | input | Gate; gate-source voltage limited to ±8.0 V, threshold VGS(th) -0.45 V min to -0.7 V typ at ID=-250µA. |
| 2 | SOURCE | passive | Source of the P-channel MOSFET; body diode runs source to drain with forward voltage -1.2 V max at IS=-0.3A. |
| 3 | DRAIN | passive | Drain; drain-source voltage rated -20 V, continuous drain current -1.4 A and pulsed -3.0 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Changjiang Electronics Tech (CJ) |
| Package | SOT-323 |
| Category | Transistors |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `CJ2101`
- Footprint: `Package_TO_SOT_SMD:SOT-323_SC-70`
- 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files: `cj2101-etched.step` / `cj2101-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cj2101.step` / `cj2101.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Changjiang Electronics Tech (CJ) datasheet](docs/cj2101-datasheet.pdf) (5 pp, sha256 `cef524aaeed1910b`, retrieved 2026-10-24, 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/cj2101-datasheet.pdf)