# YFW13003B

**YFW** · Bipolar (BJT) · TO-92

YFW13003B 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 | B | input | Base of the NPN transistor; emitter-base voltage limited to 9 V (BVEBO) and breakdown tested at IE = 100μA. |
| 2 | C | passive | Collector of the NPN transistor; BVCBO 700 V, BVCEO 400 V, continuous collector current 0.5 A. |
| 3 | E | passive | Emitter of the NPN transistor; total power dissipation 0.9 W and junction temperature up to 150 ℃. |

## 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 |  |  | 700 | V |  | 1 |
| Collector-Emitter Voltage | BVCEO |  |  | 400 | V |  | 1 |
| Emitter-Base Voltage | BVEBO |  |  | 9 | V |  | 1 |
| Collector Current | IC |  |  | 0.5 | A |  | 1 |
| Collector Power Dissipation | PC |  |  | 0.9 | W |  | 1 |
| Junction Temperature | Tj |  |  | 150 | ℃ |  | 1 |
| Storage Temperature | Tstg | -55 |  | 150 | ℃ |  | 1 |
| Collector-base breakdown voltage | BVCBO | 700 |  |  | V | IC = 100μA，IE = 0 | 1 |
| Collector-emitter breakdown voltage | BVCEO | 400 |  |  | V | IC = 1mA，IB = 0 | 1 |
| Emitter-base breakdown voltage | BVEBO | 9 |  |  | V | IE = 100μA，IC = 0 | 1 |
| Collector cut-off current | ICBO |  |  | 100 | μA | VCB = 700V，IE = 0 | 1 |
| Collector cut-off current | ICEO |  |  | 200 | μA | VCE =400V，IB = 0 | 1 |
| Emitter cut-off current | IEBO |  |  | 100 | μA | VEB = 9V，IC = 0 | 1 |
| DC current gain | hFE | 10 |  | 40 |  | VCE = 5，IC= 0.1A | 1 |
| Collector-emitter saturation voltage | VCE(sat) |  |  | 0.5 | V | IC = 0.5A, IB = 0.1A | 1 |
| Base-emitter saturation voltage | VBE(sat) |  |  | 1.2 | V | IC = 0.5A, IB = 0.1A | 1 |
| Transition frequency | fT |  | 8 |  | MHz | VCE =10V, IB = 0.1A | 1 |
| Output Capacitance | Cob |  | 21 |  | pF | VCE =10V, f = 1MHz | 1 |
| Turn On Time | ton |  | 1.1 |  | μs | VCC =10V, IC = 0.1A, IB1 = 0.2A,IB2 = -0.1A, RL=125Ω | 1 |
| Storage Time | tstg |  | 4 |  | μs |  | 1 |
| Fall Time | tf |  | 0.7 |  | μs |  | 1 |

## CAD (KiCad official)

- Symbol: `YFW13003B`
- Footprint: `Package_TO_SOT_THT:TO-92_Inline`
- 3D model: TO-92 (KiCad packages3D, STEP)
- 3D model files: `yfw13003b-etched.step` / `yfw13003b-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `yfw13003b.step` / `yfw13003b.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/8590919852779515904) (3 pp, sha256 `ee8d8efc8f43ceab`, 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/yfw13003b-datasheet.pdf)