# VBZFB40N03

**VBsemi Elec** · MOSFETs · TO-251

VBZFB40N03 from VBsemi Elec, in a TO-251. 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 | G | input | Gate terminal of the N-channel MOSFET, with a maximum gate-source voltage of ±20 V. |
| 2 | D | passive | Drain terminal of the N-channel MOSFET, with a maximum drain-source voltage of 30 V. |
| 3 | S | passive | Source terminal of the N-channel MOSFET, with a continuous source-drain diode current of 15 A at TC = 25 °C. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | VBsemi Elec |
| Package | TO-251 |
| Category | Transistors |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `VBZFB40N03`
- Footprint: `Package_TO_SOT_THT:TO-251-3_Vertical`
- 3D model: TO-251 (KiCad packages3D, STEP)
- 3D model files: `vbzfb40n03-etched.step` / `vbzfb40n03-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `vbzfb40n03.step` / `vbzfb40n03.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [VBsemi Elec datasheet](docs/vbzfb40n03-datasheet.pdf) (8 pp, sha256 `fab72535ccf4db4c`, retrieved 2026-10-27, 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/vbzfb40n03-datasheet.pdf)