component
WNM4009-3
Public Made by Adomby adom
WILLSEMI Will Semicon MOSFETs, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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WNM4009-3
WILLSEMI Will Semicon · MOSFETs · SOT-23
WNM4009-3 from WILLSEMI Will Semicon, in a SOT-23. 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 of the N-channel MOSFET; gate-source voltage is rated ±20 V (VGS), and the gate threshold is 1 V min, 1.9 V typ, 2.5 V max at VDS = VGS, ID = 250 µA. |
| 2 | S | passive | Source of the N-channel MOSFET; body diode forward voltage is 0.8 V typ and 1.2 V max at VGS = 0 V, IS = 1 A. |
| 3 | D | passive | Drain of the N-channel MOSFET; drain-source voltage is rated 110 V, with pulsed drain current IDM up to 7 A and continuous ID of 1.70 A at TA = 25 °C (10 s rating). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | WILLSEMI Will Semicon |
| Package | SOT-23 |
| Category | Transistors/Thyristors |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
WNM4009-3 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
wnm4009-3-etched.step/wnm4009-3-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);wnm4009-3.step/wnm4009-3.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: WILLSEMI Will Semicon datasheet (8 pp, sha256
30023ef7994ab6c7, retrieved 2026-10-09, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).
# WNM4009-3
**WILLSEMI Will Semicon** · MOSFETs · SOT-23
WNM4009-3 from WILLSEMI Will Semicon, in a SOT-23. 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 of the N-channel MOSFET; gate-source voltage is rated ±20 V (VGS), and the gate threshold is 1 V min, 1.9 V typ, 2.5 V max at VDS = VGS, ID = 250 µA. |
| 2 | S | passive | Source of the N-channel MOSFET; body diode forward voltage is 0.8 V typ and 1.2 V max at VGS = 0 V, IS = 1 A. |
| 3 | D | passive | Drain of the N-channel MOSFET; drain-source voltage is rated 110 V, with pulsed drain current IDM up to 7 A and continuous ID of 1.70 A at TA = 25 °C (10 s rating). |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | WILLSEMI Will Semicon |
| Package | SOT-23 |
| Category | Transistors/Thyristors |
| Pins | 3 |
## CAD (KiCad official)
- Symbol: `WNM4009-3`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `wnm4009-3-etched.step` / `wnm4009-3-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `wnm4009-3.step` / `wnm4009-3.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [WILLSEMI Will Semicon datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588954583862927360) (8 pp, sha256 `30023ef7994ab6c7`, 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/wnm4009-3-datasheet.pdf)