# 2SC2240-G

**YFW** · Bipolar (BJT) · TO-92

2SC2240-G from YFW, in a TO-92. 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 | E | passive | Emitter; the TO-92 drawing labels the leads E, C, B in order, and the emitter-base breakdown voltage BVEBO is 5 V. |
| 2 | C | passive | Collector; the collector current IC is rated 100 mA, and the collector-emitter voltage BVCEO is 120 V. |
| 3 | B | passive | Base; the base current IB is rated 20 mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | YFW |
| Package | TO-92 |
| 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 | BVCBO |  |  | 120 | V |  | 1 |
| Collector-emitter voltage | BVCEO |  |  | 120 | V |  | 1 |
| Emitter-base voltage | BVEBO |  |  | 5 | V |  | 1 |
| Collector current | IC |  |  | 100 | mA |  | 1 |
| Base current | IB |  |  | 20 | mA |  | 1 |
| Collector power dissipation | PC |  |  | 300 | mW |  | 1 |
| Junction temperature | Tj |  |  | 125 | ℃ |  | 1 |
| Storage temperature | Tstg | -55 |  | 125 | ℃ |  | 1 |
| Collector-base breakdown voltage | BVCBO | 120 |  |  | V | IC = 100μA，IE = 0 | 1 |
| Collector-emitter breakdown voltage | BVCEO | 120 |  |  | V | IC = 1mA，IB = 0 | 1 |
| Emitter-base breakdown voltage | BVEBO | 5 |  |  | V | IE = 100μA，IC = 0 | 1 |
| Collector cut-off current | ICBO |  |  | 0.1 | μA | VCB =120V，IE = 0 | 1 |
| Emitter cut-off current | IEBO |  |  | 0.1 | μA | VEB = 6V，IC = 0 | 1 |
| DC current gain (G grade) | hFE | 200 |  | 400 |  | VCE = 6V，IC= 2mA | 1 |
| Collector-emitter saturation voltage | VCE(sat) |  |  | 0.3 | V | IC = 10mA，IB = 1mA | 1 |
| Base-emitter voltage | VBE(on) |  |  | 1 | V | VCE = 6V，IC= 2mA | 1 |
| Transition frequency | fT |  | 100 |  | MHZ | VCE = 5V，IB = 10mA | 1 |
| Collector output capacitance | Cob |  |  | 3 | pF | VCB = 10V, IE = 0, f=1kHz | 1 |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| housing | PC |  | Base current IB 20 mA Collector power dissipation PC 300 mW | 1 |

## CAD (KiCad official)

- Symbol: `2SC2240-G`
- Footprint: `Package_TO_SOT_THT:TO-92_Inline`
- 3D model: TO-92 (KiCad packages3D, STEP)
- 3D model files: `2sc2240-g-etched.step` / `2sc2240-g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `2sc2240-g.step` / `2sc2240-g.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [YFW datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8604429719588642816) (3 pp, sha256 `964d4af1fa2b9f69`, retrieved 2026-10-17, 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/2sc2240-g-datasheet.pdf)