# WGP18N50SE

**Wild Goose** · MOSFETs · TO-220

WGP18N50SE from Wild Goose, in a TO-220. 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 terminal; the datasheet rates the gate-source voltage VGSS at ±30 V. |
| 2 | Drain | passive | Drain terminal; rated at 500 V drain-source voltage (VDSS) with 18 A drain current at TC=25℃. |
| 3 | Source | passive | Source terminal, the reference for the gate-source voltage rated at ±30 V (VGSS). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Wild Goose |
| Package | TO-220 |
| 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 | VDSS |  |  | 500 | V |  | 1 |
| Drain Current | ID |  |  | 18 | A | TC=25℃ | 1 |
| Drain Current | ID |  |  | 12.9 | A | TC=100℃ | 1 |
| Gate-Source Voltage | VGSS | -30 |  | 30 | V |  | 1 |
| Single Pulse Avalanche Energy | EAS |  |  | 980 | mJ | note1 | 1 |
| Avalanche Current | IAR |  |  | 18 | A | note2 | 1 |
| Power Dissipation | PD |  |  | 38.5 | W | Tc=25℃ | 1 |
| Junction Temperature | Tj |  |  | 150 | ℃ |  | 1 |
| Storage Temperature | Tstg | -55 |  | 150 | ℃ |  | 1 |
| Maximum lead temperature for soldering | TL |  |  | 300 | ℃ | 1/8 inch from case for 5 seconds | 1 |
| Thermal Resistance, Junction to Case | RθJC |  |  | 3.3 | ℃/W |  | 1 |
| Thermal Resistance, Junction to Ambient | RθJA |  |  | 62.5 | ℃/W |  | 1 |
| Transient Thermal Response, Junction to Case | ZθJC(t) |  |  | 2 | ℃/W | Transient thermal response curve, note 1 (ZθJC(t) Max) | 4 |
| Drain-Source Breakdown Voltage | BVDSS | 500 |  |  | V | ID=250μA，VGS=0 | 2 |
| Zero Gate Voltage Drain Current | IDSS |  |  | 1 | μA | VDS=500V, VGS=0V | 2 |
| Zero Gate Voltage Drain Current | IDSS |  |  | 10 | μA | VDS=400V, Tc=125℃ | 2 |
| Gate-body leakage Current, Forward | IGSSF |  |  | 100 | nA | VGS=+30V, VDS=0V | 2 |
| Gate-body leakage Current, Reverse | IGSSR |  |  | -100 | nA | VGS=-30V, VDS=0V | 2 |
| Gate Threshold Voltage | VGS(TH) | 2 |  | 4 | V | ID=250μA, VDS=VGS | 2 |
| Turn-On Delay Time | Td(on) |  | 95 | 200 | nS | VDD=250V, ID=18A, RG=25Ω (Note 3,4) | 2 |
| Turn-On Rise Time | Tr |  | 375 | 760 | nS | VDD=250V, ID=18A, RG=25Ω (Note 3,4) | 2 |
| Turn-Off Delay Time | Td(off) |  | 100 | 210 | nS | VDD=250V, ID=18A, RG=25Ω (Note 3,4) | 2 |
| Turn-Off Rise Time | Tf |  | 105 | 220 | nS | VDD=250V, ID=18A, RG=25Ω (Note 3,4) | 2 |
| Total Gate Charge | Qg |  | 50 | 65 | nC | VDS=400V, VGS=10V, ID=18A (Note 3,4) | 2 |
| Max. Diode Forward Current | Is |  |  | 18 | A |  | 2 |
| Max. Pulsed Forward Current | ISM |  |  | 80 | A |  | 2 |
| Diode Forward Voltage | VSD |  |  | 1.5 | V | ID=18A | 2 |
| Breakdown Voltage Temperature Coefficient | ΔBVDSS/ΔTJ |  | 0.53 |  | V/℃ | ID=250μA, Reference to 25℃ | 2 |
| Input Capacitance | Ciss |  | 3420 |  | pF | VDS=25V, VGS=0, f=1.0MHz | 2 |
| Output Capacitance | Coss |  | 325 |  | pF | VDS=25V, VGS=0, f=1.0MHz | 2 |
| Reverse Transfer Capacitance | Crss |  | 25 |  | pF | VDS=25V, VGS=0, f=1.0MHz | 2 |
| Gate-Source Charge | Qgs |  | 14.8 |  | nC |  | 2 |
| Gate-Drain Charge | Qgd |  | 21.6 |  | nC |  | 2 |
| Reverse Recovery Time | Trr |  | 507 |  | nS | IS=18A, VGS=0V, diF/dt=100A/μs (Note3) | 2 |
| Reverse Recovery Charge | Qrr |  | 7.2 |  | μC | IS=18A, VGS=0V, diF/dt=100A/μs (Note3) | 2 |

## CAD (KiCad official)

- Symbol: `WGP18N50SE`
- Footprint: `Package_TO_SOT_THT:TO-220-3_Vertical`
- 3D model: TO-220 (KiCad packages3D, STEP)
- 3D model files: `wgp18n50se-etched.step` / `wgp18n50se-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `wgp18n50se.step` / `wgp18n50se.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Wild Goose datasheet](docs/wgp18n50se-datasheet.pdf) (7 pp, sha256 `78a60c74b81f3ffd`, retrieved 2026-10-27, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `off` (skipped (clean text read)), 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/wgp18n50se-datasheet.pdf)