component
2SC2712
Public Made by Adomby adom
Changjing Bipolar (BJT), 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
markdown2SC2712
Changjing · Bipolar (BJT) · SOT-23
2SC2712 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 | BASE | input | Base terminal of the NPN transistor; the maximum emitter-base voltage VEBO is 5 V and the continuous collector current is limited to 150 mA. |
| 2 | EMITTER | passive | Emitter terminal of the NPN transistor; the emitter-base breakdown voltage V(BR)EBO is 5 V at IE=100µA with IC=0. |
| 3 | COLLECTOR | passive | Collector terminal of the NPN transistor; ratings are VCBO 60 V, VCEO 50 V, IC 150 mA continuous, and collector power dissipation PC 150 mW. |
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 |
|---|---|---|---|---|---|---|---|
| Collector-base voltage | VCBO | 60 | V | 1 | |||
| Collector-emitter voltage | VCEO | 50 | V | 1 | |||
| Emitter-base voltage | VEBO | 5 | V | 1 | |||
| Collector current -Continuous | IC | 150 | mA | 1 | |||
| Collector power dissipation | PC | 150 | mW | 1 | |||
| Junction temperature | TJ | 150 | ℃ | 1 | |||
| Storage temperature | Tstg | -55 | 150 | ℃ | 1 | ||
| Collector-base breakdown voltage | V(BR)CBO | 60 | V | IC= 100μA, IE=0 | 1 | ||
| Collector-emitter breakdown voltage | V(BR)CEO | 50 | V | IC=1mA ,IB=0 | 1 | ||
| Emitter-base breakdown voltage | V(BR)EBO | 5 | V | IE= 100μA, IC=0 | 1 | ||
| Collector cut-off current | ICBO | 0.1 | μA | VCB= 60 V, IE=0 | 1 | ||
| Emitter cut-off current | IEBO | 0.1 | μA | VEB=5V, IC=0 | 1 | ||
| DC current gain | hFE | 70 | 700 | VCE=6V, IC=2mA | 1 | ||
| Collector-emitter saturation voltage | VCE(sat) | 0.1 | 0.25 | V | IC= 100mA, IB=10mA | 1 | |
| Transition frequency | fT | 80 | MHz | VCE=10V, IC= 1mA | 1 | ||
| Output capacitance | Cob | 2 | 3.5 | pF | VCB=10V, IE=0, f=1 MHz | 1 | |
| Noise Figure | NF | 1 | 10 | dB | VCE=6V, IC=0.1mA, f=1kHz, Rg=10kΩ | 1 |
CAD (KiCad official)
- Symbol:
2SC2712 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
2sc2712-etched.step/2sc2712-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);2sc2712.step/2sc2712.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (4 pp, sha256
bf94ac911e54b8a7, retrieved 2026-10-17, 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).