# BCW61D-HXY

**HXY MOSFET** · Bipolar (BJT) · SOT-23

BCW61D-HXY from HXY MOSFET, 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 | B | input | Base of the PNP transistor; drive current for IC up to -0.1A, with VCE(sat) max -0.5V at IC=-100mA, IB=-5mA. |
| 2 | E | passive | Emitter of the PNP transistor; emitter-base voltage rated -5V (VEBO). |
| 3 | C | passive | Collector of the PNP transistor; VCEO -45V, VCBO -50V, continuous collector current -0.1A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HXY MOSFET |
| 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 breakdown voltage | VCBO | -50 |  |  | V | IC -10ȝA, IE 0 | 1 |
| Collector-emitter breakdown voltage | VCEO | -45 |  |  | V | IC -10mA, IB 0 | 1 |
| Emitter-base breakdown voltage | VEBO | -5 |  |  | V | IE -1ȝA, IC 0 | 1 |
| Collector cut-off current | ICBO |  |  | -0.1 | ȝA | VCB -45V, IE 0 | 1 |
| Emitter cut-off current | IEBO |  |  | -0.1 | ȝA | VEB -5 V, IC 0 | 1 |
| DC current gain | hFE | 420 |  | 800 |  | VCE -5V, IC -2mA | 1 |
| Collector-emitter saturation voltage | VCE(sat) |  |  | -0.5 | V | IC -100mA, IB -5 mA | 1 |
| Base-emitter saturation voltage | VBE(sat) |  |  | -1.1 | V | IC -100mA, IB -5mA | 1 |
| Collector capacitance | Cob |  |  | 4.5 | pF | VCB -10V, f 10H] | 1 |
| Collector-base voltage (absolute maximum) | VCBO |  |  | 50 | V | Ta=25°C unless otherwise noted | 1 |
| Collector-emitter voltage (absolute maximum) | VCEO |  |  | -45 | V | Ta=25°C unless otherwise noted | 1 |
| Emitter-base voltage (absolute maximum) | VEBO |  |  | -5 | V | Ta=25°C unless otherwise noted | 1 |
| Collector current-continuous (absolute maximum) | IC |  |  | -0.1 | A | Ta=25°C unless otherwise noted | 1 |
| Collector power dissipation (absolute maximum) | PC |  |  | 200 | mW | Ta=25°C unless otherwise noted | 1 |
| Junction temperature (absolute maximum) | Tj |  |  | 150 | °C |  | 1 |
| Storage temperature | Tstg | -55 |  | 150 | °C |  | 1 |

## CAD (KiCad official)

- Symbol: `BCW61D-HXY`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `bcw61d-hxy-etched.step` / `bcw61d-hxy-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bcw61d-hxy.step` / `bcw61d-hxy.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [HXY MOSFET datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8604450045941207040) (5 pp, sha256 `9081f82501dcf088`, retrieved 2026-10-19, 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/bcw61d-hxy-datasheet.pdf)