component
CJ3134K
Public Made by Adomby adom
Changjing MOSFETs, SOT-23. 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
markdownCJ3134K
Changjing · MOSFETs · SOT-23
CJ3134K from Changjing, in a SOT-23. 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 N-channel MOSFET, with a typical gate-source voltage rating of ±12 V and a gate threshold voltage VGS(th) of 0.35 to 1.1 V at ID = 250 µA. |
| 2 | SOURCE | passive | Source terminal, the reference for the ±12 V gate-source rating and the body diode forward voltage VSD of 1.2 V at IS = 0.15 A. |
| 3 | DRAIN | passive | Drain terminal, rated for a drain-source voltage of 20 V, continuous drain current of 0.75 A and pulsed drain current of 1.8 A (tp = 10 µs). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SOT-23 |
| 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 | VDS | 20 | V | 1 | |||
| Gate-Source Voltage (printed as 'Typical Gate-Source Voltage') | VGS | -12 | 12 | V | 1 | ||
| Continuous Drain Current | ID | 0.75 | A | note 1 | 1 | ||
| Pulsed Drain Current | IDM | 1.8 | A | tp=10μs | 1 | ||
| Power Dissipation | PD | 350 | mW | note 1 | 1 | ||
| Thermal Resistance from Junction to Ambient | RθJA | 357 | ℃/W | note 1 | 1 | ||
| Junction Temperature | TJ | 150 | ℃ | 1 | |||
| Storage Temperature | TSTG | -55 | 150 | ℃ | 1 | ||
| Lead Temperature for Soldering Purposes | TL | 260 | ℃ | 1/8" duration for 10 s | 1 | ||
| Drain-source breakdown voltage | V(BR)DSS | 20 | V | VGS = 0V, ID =250µA | 2 | ||
| Zero gate voltage drain current | IDSS | 1 | µA | VDS =20V,VGS = 0V | 2 | ||
| Gate-body leakage current | IGSS | -20 | 20 | µA | VGS =±10V, VDS = 0V | 2 | |
| Gate threshold voltage (note 2) | VGS(th) | 0.35 | 0.54 | 1.1 | V | VDS =VGS, ID =250µA | 2 |
| Drain-source on-resistance (note 2), VGS=4.5V | RDS(on) | 270 | 380 | mΩ | VGS =4.5V, ID =0.65A | 2 | |
| Drain-source on-resistance (note 2), VGS=2.5V | RDS(on) | 320 | 450 | mΩ | VGS =2.5V, ID =0.55A | 2 | |
| Drain-source on-resistance (note 2), VGS=1.8V | RDS(on) | 390 | 800 | mΩ | VGS =1.8V, ID =0.45A | 2 | |
| Input capacitance | Ciss | 79 | 120 | pF | VDS =16V,VGS =0V,f =1MHz | 2 | |
| Output capacitance | Coss | 13 | 20 | pF | VDS =16V,VGS =0V,f =1MHz | 2 | |
| Reverse transfer capacitance | Crss | 9 | 15 | pF | VDS =16V,VGS =0V,f =1MHz | 2 |
CAD (KiCad official)
- Symbol:
CJ3134K - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
cj3134k-etched.step/cj3134k-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cj3134k.step/cj3134k.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (5 pp, sha256
01a5c6a01a89b19c, retrieved 2026-10-09, 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).