component
CJ3139K
Public Made by Adomby adom
Changjing MOSFETs, SOT-723. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
CJ3139K
Changjing · MOSFETs · SOT-723
CJ3139K from Changjing, in a SOT-723. 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 of the P-channel MOSFET; gate-source voltage rated ±12 V (typical gate threshold -0.35 V min to -1.1 V max at -250 µA). |
| 2 | SOURCE | passive | Source of the P-channel MOSFET; continuous drain current -0.66 A and pulsed -1.2 A flow through source-drain. |
| 3 | DRAIN | passive | Drain of the P-channel MOSFET; drain-source voltage rated -20 V with RDS(on) max 520 mΩ at VGS -4.5 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SOT-723 |
| Category | Transistors/Thyristors |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
CJ3139K - Footprint:
Package_TO_SOT_SMD:SOT-723 - 3D model: SOT-723, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.5 mm nominal SOT-723 height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files:
cj3139k-etched.step/cj3139k-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cj3139k.step/cj3139k.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (5 pp, sha256
857efdd0157336e9, retrieved 2026-10-09, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(vision), consensusclaude-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).
# CJ3139K
**Changjing** · MOSFETs · SOT-723
CJ3139K from Changjing, in a SOT-723. 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 of the P-channel MOSFET; gate-source voltage rated ±12 V (typical gate threshold -0.35 V min to -1.1 V max at -250 µA). |
| 2 | SOURCE | passive | Source of the P-channel MOSFET; continuous drain current -0.66 A and pulsed -1.2 A flow through source-drain. |
| 3 | DRAIN | passive | Drain of the P-channel MOSFET; drain-source voltage rated -20 V with RDS(on) max 520 mΩ at VGS -4.5 V. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SOT-723 |
| Category | Transistors/Thyristors |
| Pins | 3 |
## CAD (KiCad official)
- Symbol: `CJ3139K`
- Footprint: `Package_TO_SOT_SMD:SOT-723`
- 3D model: SOT-723, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.5 mm nominal SOT-723 height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files: `cj3139k-etched.step` / `cj3139k-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cj3139k.step` / `cj3139k.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/8586202711444901888) (5 pp, sha256 `857efdd0157336e9`, retrieved 2026-10-09, 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/cj3139k-datasheet.pdf)