component
AD-2SC2412-R
Public Made by Adomby adom
Changjing Bipolar Transistors - BJT, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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AD-2SC2412-R
Changjing · Bipolar Transistors - BJT · SOT-23
AD-2SC2412-R 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 of the NPN transistor; emitter-base breakdown voltage VEBO is 7 V and base-emitter cut-off current IEBO is at most 0.1 µA at VEB = 7 V. |
| 2 | EMITTER | passive | Emitter of the NPN transistor; collector continuous current is rated at 150 mA and power dissipation at 200 mW. |
| 3 | COLLECTOR | passive | Collector of the NPN transistor; VCBO is 60 V, VCEO is 50 V and continuous collector current IC is 150 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SOT-23 |
| Category | Triode/MOS Tube/Transistor |
| 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 |
|---|---|---|---|---|---|---|---|
| DC current gain (rank R) | hFE | 180 | 390 | VCE = 6V, IC = 1mA | 1 | ||
| Collector-base breakdown voltage | V(BR)CBO | 60 | V | IC = 50µA, IE = 0A | 2 | ||
| Collector-emitter breakdown voltage | V(BR)CEO | 50 | V | IC = 1mA, IB = 0A | 2 | ||
| Emitter-base breakdown voltage | V(BR)EBO | 7 | V | IE = 50µA, IC = 0A | 2 | ||
| Collector-base cut-off current | ICBO | 0.1 | µA | VCB =60V, IE = 0A | 2 | ||
| Emitter-base cut-off current | IEBO | 0.1 | µA | VEB = 7V, IC = 0A | 2 | ||
| Collector-emitter saturation voltage | VCE(sat) | 0.4 | V | IC = 50mA, IB = 5mA | 2 | ||
| Collector output capacitance | Cob | 2 | 3.5 | pF | VCB = 12V, IE = 0, f=1MHz | 2 | |
| Transition frequency | fT | 160 | MHz | VCE = 12V, IC = -2mA, f = 100MHz | 2 | ||
| Collector-base voltage | VCBO | 60 | V | Tj = 25°C | 2 | ||
| Collector-emitter voltage | VCEO | 50 | V | Tj = 25°C | 2 | ||
| Emitter-base voltage | VEBO | 7 | V | Tj = 25°C | 2 | ||
| Collector continuous current | IC | 150 | mA | Tj = 25°C | 2 | ||
| Collector power dissipation | PC | 200 | mW | Tj = 25°C | 2 | ||
| Operating junction and storage temperature range | Tj, Tstg | -55 | 150 | °C | 2 | ||
| Thermal resistance from junction to ambient | RθJA | 625 | °C/W | 2 |
CAD (KiCad official)
- Symbol:
AD-2SC2412-R - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
ad-2sc2412-r-etched.step/ad-2sc2412-r-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ad-2sc2412-r.step/ad-2sc2412-r.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (6 pp, sha256
c24e8451ca0bf6ff, retrieved 2026-10-23, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+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).
# AD-2SC2412-R
**Changjing** · Bipolar Transistors - BJT · SOT-23
AD-2SC2412-R 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 of the NPN transistor; emitter-base breakdown voltage VEBO is 7 V and base-emitter cut-off current IEBO is at most 0.1 µA at VEB = 7 V. |
| 2 | EMITTER | passive | Emitter of the NPN transistor; collector continuous current is rated at 150 mA and power dissipation at 200 mW. |
| 3 | COLLECTOR | passive | Collector of the NPN transistor; VCBO is 60 V, VCEO is 50 V and continuous collector current IC is 150 mA. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SOT-23 |
| Category | Triode/MOS Tube/Transistor |
| 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 |
|---|---|---|---|---|---|---|---|
| DC current gain (rank R) | hFE | 180 | | 390 | | VCE = 6V, IC = 1mA | 1 |
| Collector-base breakdown voltage | V(BR)CBO | 60 | | | V | IC = 50µA, IE = 0A | 2 |
| Collector-emitter breakdown voltage | V(BR)CEO | 50 | | | V | IC = 1mA, IB = 0A | 2 |
| Emitter-base breakdown voltage | V(BR)EBO | 7 | | | V | IE = 50µA, IC = 0A | 2 |
| Collector-base cut-off current | ICBO | | | 0.1 | µA | VCB =60V, IE = 0A | 2 |
| Emitter-base cut-off current | IEBO | | | 0.1 | µA | VEB = 7V, IC = 0A | 2 |
| Collector-emitter saturation voltage | VCE(sat) | | | 0.4 | V | IC = 50mA, IB = 5mA | 2 |
| Collector output capacitance | Cob | | 2 | 3.5 | pF | VCB = 12V, IE = 0, f=1MHz | 2 |
| Transition frequency | fT | | 160 | | MHz | VCE = 12V, IC = -2mA, f = 100MHz | 2 |
| Collector-base voltage | VCBO | | | 60 | V | Tj = 25°C | 2 |
| Collector-emitter voltage | VCEO | | | 50 | V | Tj = 25°C | 2 |
| Emitter-base voltage | VEBO | | | 7 | V | Tj = 25°C | 2 |
| Collector continuous current | IC | | | 150 | mA | Tj = 25°C | 2 |
| Collector power dissipation | PC | | | 200 | mW | Tj = 25°C | 2 |
| Operating junction and storage temperature range | Tj, Tstg | -55 | | 150 | °C | | 2 |
| Thermal resistance from junction to ambient | RθJA | | | 625 | °C/W | | 2 |
## CAD (KiCad official)
- Symbol: `AD-2SC2412-R`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `ad-2sc2412-r-etched.step` / `ad-2sc2412-r-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ad-2sc2412-r.step` / `ad-2sc2412-r.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Changjing datasheet](docs/ad-2sc2412-r-datasheet.pdf) (6 pp, sha256 `c24e8451ca0bf6ff`, retrieved 2026-10-23, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+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/ad-2sc2412-r-datasheet.pdf)