# STS5N15F4

**STMicroelectronics** · MOSFETs · SO-8

STS5N15F4 from STMicroelectronics, in a SO-8. 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 | S | passive | Source terminal of the N-channel MOSFET, one of three source pins (1-3) tied together internally. |
| 2 | S | passive | Source terminal of the N-channel MOSFET, one of three source pins (1-3) tied together internally. |
| 3 | S | passive | Source terminal of the N-channel MOSFET, one of three source pins (1-3) tied together internally. |
| 4 | G | input | Gate terminal; absolute maximum VGS is ±20 V and threshold VGS(th) is 2 V min to 4 V max at ID = 250 µA. |
| 5 | D | passive | Drain terminal, one of four drain pins (5-8) tied together; VDSS is 150 V and continuous ID is 5 A at TC = 25 °C. |
| 6 | D | passive | Drain terminal, one of four drain pins (5-8) tied together; VDSS is 150 V and continuous ID is 5 A at TC = 25 °C. |
| 7 | D | passive | Drain terminal, one of four drain pins (5-8) tied together; VDSS is 150 V and continuous ID is 5 A at TC = 25 °C. |
| 8 | D | passive | Drain terminal, one of four drain pins (5-8) tied together; VDSS is 150 V and continuous ID is 5 A at TC = 25 °C. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | SO-8 |
| Category | Transistors/Thyristors |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `STS5N15F4`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SO-8 (KiCad packages3D, STEP)
- 3D model files: `sts5n15f4-etched.step` / `sts5n15f4-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sts5n15f4.step` / `sts5n15f4.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [STMicroelectronics datasheet](https://www.st.com/resource/en/datasheet/sts5n15f4.pdf) (11 pp, sha256 `0a1fe87c960c3935`, retrieved 2026-10-07, 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/sts5n15f4-datasheet.pdf)