# NDS331N

**ON Semiconductor** · Global Sourcing Parts · SOT-23

NDS331N from ON Semiconductor, in a SOT-23. 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 control input; logic-level threshold VGS(th) = 0.5-1.0 V (VDS = VGS, ID = 250 µA); maximum continuous gate-source voltage ±8 V. |
| 2 | S | passive | Source terminal; body diode maximum continuous forward current IS = 0.42 A, forward voltage VSD = 0.8-1.2 V (VGS = 0 V, IS = 0.42 A). |
| 3 | D | passive | Drain terminal; maximum drain-source voltage VDSS = 20 V, maximum continuous drain current ID = 1.3 A, RDS(ON) = 0.21 Ω at VGS = 2.7 V / 0.16 Ω at VGS = 4.5 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ON Semiconductor |
| Package | SOT-23 |
| Category | Global Sourcing Parts |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `NDS331N`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `nds331n-etched.step` / `nds331n-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `nds331n.step` / `nds331n.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [ON Semiconductor datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588918452362874880) (7 pp, sha256 `0d564f427d26ca86`, retrieved 2026-09-17, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-sonnet-4-6` (text+vision), consensus `claude-opus-4-7` (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/nds331n-datasheet.pdf)