# AUIRFR4105ZTRPBF-VB

**VBsemi Elec** · MOSFETs · TO-252

AUIRFR4105ZTRPBF-VB from VBsemi Elec, in a TO-252. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | G | input | Gate. Insulated MOSFET gate; VGS absolute max ±20 V. Gate threshold voltage VGS(th) typ. 2 V (1 V min, 3 V max at VDS = VGS, ID = 250 µA). Total gate charge Qg typ. 47 nC at VDS = 30 V, VGS = 10 V, ID = 50 A. |
| 2 | D | passive | Drain. N-channel MOSFET drain; VDS breakdown 60 V min. Continuous ID = 58 A at TC = 25 °C (package limited), RDS(on) = 10 mΩ typ at VGS = 10 V, ID = 20 A. Also connected to the exposed tab (heat slug) of the TO-252AA package. |
| 3 | S | passive | Source. N-channel MOSFET source; continuous source (body diode) current IS = 50 A max. Body diode VSD typ. 1 V (max 1.5 V) at IF = 20 A, VGS = 0 V; trr typ. 45 ns. |
| 4 | D (Tab) | passive | Exposed thermal tab, internally connected to the Drain (pin 2). Used as the primary heat-sinking path; RthJC = 0.85 °C/W typ. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | VBsemi Elec |
| Package | TO-252 |
| Category | Transistors/Thyristors |
| Pins | 4 |

## Ordering variants

Same part, different packaging or reel option.

- `AUIRFR4105ZTRPBF-VB`

## CAD (KiCad official)

- Symbol: `AUIRFR4105ZTRPBF-VB`
- Footprint: `Package_TO_SOT_SMD:TO-252-2`
- 3D model: TO-252 (KiCad packages3D, STEP)
- 3D model files: `auirfr4105ztrpbf-vb-etched.step` / `auirfr4105ztrpbf-vb-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `auirfr4105ztrpbf-vb.step` / `auirfr4105ztrpbf-vb.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [VBsemi Elec datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603384632662773760) (None pp, sha256 `6a30dc44eda5d13c`, retrieved 2026-08-17, tier: lcsc)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/auirfr4105ztrpbf-vb-datasheet.pdf)