# FQA9N90C-F109

**onsemi** · MOSFETs · TO-3PN

FQA9N90C-F109 from onsemi, in a TO-3PN. 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; gate-source voltage is rated at ±30 V maximum with a gate threshold of 3.0 V to 5.0 V at VDS = VGS, ID = 250 µA. |
| 2 | D | passive | Drain terminal; drain-source voltage is rated at 900 V with a continuous drain current of 9.0 A at TC = 25°C. |
| 3 | S | passive | Source terminal; maximum continuous drain-source diode forward current is 9.0 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | TO-3PN |
| Category | Transistors |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `FQA9N90C-F109`
- Footprint: `Package_TO_SOT_THT:TO-3P-3_Vertical`
- 3D model: TO-3PN (KiCad packages3D, STEP)
- 3D model files: `fqa9n90c-f109-etched.step` / `fqa9n90c-f109-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `fqa9n90c-f109.step` / `fqa9n90c-f109.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [onsemi datasheet](https://www.onsemi.com/pdf/datasheet/fqa9n90c-f109-d.pdf) (8 pp, sha256 `382ad37b21678d0b`, retrieved 2026-10-27, tier: manufacturer)
- **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/fqa9n90c-f109-datasheet.pdf)