# NTS4409NT1G

**onsemi** · MOSFETs · SOT-323

NTS4409NT1G from onsemi, in a SOT-323. 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 of the N-channel MOSFET; gate-to-source voltage is rated at 8.0 V maximum (VGS). |
| 2 | Source | passive | Source of the N-channel MOSFET; source (body diode) current is rated at 0.3 A maximum (IS). |
| 3 | Drain | passive | Drain of the N-channel MOSFET; drain-to-source voltage is rated at 25 V with continuous drain current of 0.7 A at TA = 25°C steady state (ID). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOT-323 |
| Category | Transistors/Thyristors |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `NTS4409NT1G`
- Footprint: `Package_TO_SOT_SMD:SOT-323_SC-70`
- 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files: `nts4409nt1g-etched.step` / `nts4409nt1g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `nts4409nt1g.step` / `nts4409nt1g.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [onsemi datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588881312506138624) (5 pp, sha256 `876e5b7860b66994`, retrieved 2026-10-09, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-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/nts4409nt1g-datasheet.pdf)