component
CJ3139KW
Public Made by Adomby adom
Changjing MOSFETs, SOT-323. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownCJ3139KW
Changjing · MOSFETs · SOT-323
CJ3139KW from Changjing, 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 terminal of the P-channel MOSFET, with gate-source voltage rated at ±12 V (VGS). |
| 2 | SOURCE | passive | Source terminal of the P-channel MOSFET, in a device rated for drain-source voltage VDSS of -20 V. |
| 3 | DRAIN | passive | Drain terminal of the P-channel MOSFET, rated for continuous drain current ID of -0.66 A and pulsed current IDM of -2.64 A. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SOT-323 |
| Category | Transistors/Thyristors |
| Pins | 3 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Drain-Source voltage | VDSS | -20 | V | 1 | |||
| Gate-Source voltage | VGS | -12 | 12 | V | 1 | ||
| Drain Current-Continuous | ID | -0.66 | A | 1 | |||
| Drain Current-Pulsed | IDM | -2.64 | A | Repetitive rating, pulse width limited by maximum junction temperature (note 1) | 1 | ||
| Power Dissipation | PD | 200 | mW | note 2: no heat sink at Ta=25℃ | 1 | ||
| Thermal Resistance from Junction to Ambient | RθJA | 625 | ℃/W | 1 | |||
| Junction Temperature | Tj | 150 | ℃ | 1 | |||
| Storage Temperature | Tstg | -55 | 150 | ℃ | 1 | ||
| Drain-Source Breakdown Voltage | V(BR)DSS | -20 | V | VGS = 0V, ID =-250µA | 2 | ||
| Gate-Threshold Voltage | VGS(th) | -0.35 | -0.45 | -1.1 | V | VDS =VGS, ID =-250µA | 2 |
| Gate-Body Leakage Current | IGSS | -20 | 20 | µA | VDS =0V, VGS =±10V | 2 | |
| Zero Gate Voltage Drain Current | IDSS | -1 | µA | VDS =-20V, VGS =0V | 2 | ||
| Drain-Source On-State Resistance | RDS(on) | 430 | 520 | mΩ | VGS =-4.5V, ID =-1A | 2 | |
| Drain-Source On-State Resistance | RDS(on) | 624 | 700 | mΩ | VGS =-2.5V, ID =-800mA | 2 | |
| Drain-Source On-State Resistance | RDS(on) | 950 | mΩ | VGS =-1.8V, ID =-500mA | 2 | ||
| Drain-Source Diode Forward Voltage | VSD | -1.2 | V | IS=-0.5A, VGS = 0V | 2 |
CAD (KiCad official)
- Symbol:
CJ3139KW - Footprint:
Package_TO_SOT_SMD:SOT-323_SC-70 - 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files:
cj3139kw-etched.step/cj3139kw-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cj3139kw.step/cj3139kw.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (5 pp, sha256
dbc2b042ba15d7d0, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).