# OSPF18N45

**OSEN** · MOSFETs · TO-220F

OSPF18N45 from OSEN, in a TO-220F. 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 | Gate | input | Gate control input of the N-channel MOSFET, with a maximum continuous gate-source voltage of ±30 V and a gate threshold voltage of 2.0 V to 4.0 V at VDS=VGS, ID=250 µA. |
| 2 | Drain | passive | Drain terminal of the MOSFET, rated for a drain-source voltage of 450 V and a continuous drain current of 18 A (72 A pulsed). |
| 3 | Source | passive | Source terminal of the MOSFET, with a continuous drain-source diode forward current of up to 18 A and a diode forward on-voltage of at most 1.4 V at IS=7.5 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | OSEN |
| Package | TO-220F |
| Category | Transistors/Thyristors |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `OSPF18N45`
- Footprint: `Package_TO_SOT_THT:TO-220F-3_Vertical`
- 3D model: TO-220F (KiCad packages3D, STEP)

## Provenance

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

- **Datasheet:** [OSEN datasheet](docs/ospf18n45-datasheet.pdf) (3 pp, sha256 `977f948aee435b78`, 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/ospf18n45-datasheet.pdf)