# FMMT411TA-HXY

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

FMMT411TA-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 | passive | Base terminal of the NPN transistor, with a rated emitter-base voltage VEBO of 5 V. |
| 2 | E | passive | Emitter terminal of the NPN transistor, with a rated collector current IC of 1 A and a peak pulse current ICM of 2 A. |
| 3 | C | passive | Collector terminal of the NPN transistor, with a rated collector-emitter voltage VCEO of 100 V and a collector-base voltage VCBO of 120 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HXY MOSFET |
| Package | SOT-23 |
| Category | Transistors/Thyristors |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `FMMT411TA-HXY`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `fmmt411ta-hxy-etched.step` / `fmmt411ta-hxy-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `fmmt411ta-hxy.step` / `fmmt411ta-hxy.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [HXY MOSFET datasheet](docs/fmmt411ta-hxy-datasheet.pdf) (4 pp, sha256 `c91593f0ad5c107d`, 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/fmmt411ta-hxy-datasheet.pdf)