# WG3400

**Wild Goose** · MOSFETs · SOT-23

WG3400 from Wild Goose, 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; gate-source voltage limit is ±12 V with threshold VGS(th) 0.7 V min to 1.4 V max at ID=250μA. |
| 2 | S | passive | Source; continuous drain current is 5.8 A and the body diode forward current IS is 5.8 A. |
| 3 | D | passive | Drain; drain-source voltage is rated 30 V with 5.8 A continuous and 30 A pulsed drain current. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Wild Goose |
| Package | SOT-23 |
| Category | Transistors/Thyristors |
| Pins | 3 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Drain-Source Voltage | VDS |  |  | 30 | V |  | 1 |
| Gate-Source Voltage | VGS | -12 |  | 12 | V |  | 1 |
| Drain Current-Continuous | ID |  |  | 5.8 | A |  | 1 |
| Drain Current-Pulsed (Note 1) | IDM |  |  | 30 | A | Note 1 | 1 |
| Maximum Power Dissipation | PD |  |  | 1.4 | W |  | 1 |
| Operating Junction and Storage Temperature Range | TJ,TSTG | -55 |  | 150 | ℃ |  | 1 |
| Drain-Source Breakdown Voltage | BVDSS | 30 | 33 |  | V | VGS=0V ID=250μA | 2 |
| Zero Gate Voltage Drain Current | IDSS |  |  | 1 | μA | VDS=30V,VGS=0V | 2 |
| Gate-Body Leakage Current | IGSS | -100 |  | 100 | nA | VGS=±12V,VDS=0V | 2 |
| Gate Threshold Voltage | VGS(th) | 0.7 | 0.9 | 1.4 | V | VDS=VGS,ID=250μA | 2 |
| Drain-Source On-State Resistance | RDS(ON) |  | 41 | 55 | mΩ | VGS=2.5V, ID=4A | 2 |
| Drain-Source On-State Resistance | RDS(ON) |  | 28 | 42 | mΩ | VGS=4.5V, ID=5A | 2 |
| Drain-Source On-State Resistance | RDS(ON) |  | 24 | 40 | mΩ | VGS=10V, ID=5.8A | 2 |
| Forward Transconductance | gFS | 10 |  |  | S | VDS=5V,ID=5A | 2 |
| Diode Forward Voltage (Note 3) | VSD |  |  | 1.2 | V | VGS=0V,IS=5.8A | 2 |
| Diode Forward Current (Note 2) | IS |  |  | 5.8 | A |  | 2 |
| Thermal Resistance, Junction-to-Ambient (Note 2) | RθJA |  | 89 |  | ℃/W | Note 2 | 1 |

## CAD (KiCad official)

- Symbol: `WG3400`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `wg3400-etched.step` / `wg3400-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `wg3400.step` / `wg3400.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Wild Goose datasheet](docs/wg3400-datasheet.pdf) (5 pp, sha256 `1a5e2520269643f6`, retrieved 2026-11-04, 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/wg3400-datasheet.pdf)