component
CJ3134K KF
Public Made by Adomby adom
Changjing MOSFETs, SOT-723. 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 KF
Changjing · MOSFETs · SOT-723
CJ3134K KF 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 | MOSFET gate terminal; the datasheet's typical gate-source voltage rating is ±12 V. |
| 2 | SOURCE | passive | MOSFET source terminal, the reference for gate drive; the datasheet's maximum continuous drain current rating is 0.75 A. |
| 3 | DRAIN | passive | MOSFET drain terminal; the datasheet's drain-source voltage rating is 20 V and pulsed drain current (tp=10 µs) is 1.8 A. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SOT-723 |
| 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 |
|---|---|---|---|---|---|---|---|
| Gate threshold voltage | VGS(th) | 0.35 | 0.54 | 1.1 | V | VDS =VGS, ID =250µA | 2 |
| Drain-source on-resistance | RDS(on) | 270 | 380 | mΩ | VGS =4.5V, ID =0.65A | 2 | |
| Drain-source on-resistance | RDS(on) | 320 | 450 | mΩ | VGS =2.5V, ID =0.55A | 2 | |
| Drain-source on-resistance | 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 | |
| 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 | |
| Drain-source voltage | VDS | 20 | V | 1 | |||
| Gate-source voltage | VGS | -12 | 12 | V | 1 | ||
| Continuous drain current (note 1) | ID | 0.75 | A | 1 | |||
| Pulsed drain current | IDM | 1.8 | A | tp=10μs | 1 | ||
| Power dissipation (note 1) | PD | 150 | mW | 1 | |||
| Junction temperature | TJ | 150 | ℃ | 1 | |||
| Storage temperature | TSTG | -55 | 150 | ℃ | 1 | ||
| Lead temperature for soldering purposes (1/8 in from case for 10 s) | TL | 260 | ℃ | 1 | |||
| Thermal resistance from junction to ambient (note 1) | RθJA | 833 | ℃/W | 1 |
CAD (KiCad official)
- Symbol:
CJ3134K KF - 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:
cj3134k-kf-etched.step/cj3134k-kf-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cj3134k-kf.step/cj3134k-kf.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (5 pp, sha256
70a161b082dcf3b7, 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).