# VS40200AT

**Vanguard** · MOSFETs · ITO-220AB-3

VS40200AT from Vanguard, in a ITO-220AB-3. 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 pin; gate-source voltage is rated ±20 V, with a typical threshold of 1.8 V (1.2 to 2.4 V) at ID=250μA. |
| 2 | D | passive | Drain pin, also connected to the tab; drain-source voltage is 40 V and continuous drain current is 200 A at TC=25°C. |
| 3 | S | passive | Source pin; diode continuous forward current is 200 A at TC=25°C. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Vanguard |
| Package | ITO-220AB-3 |
| Category | Triode/MOS Tube/Transistor |
| 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 Breakdown Voltage | V(BR)DSS | 40 |  |  | V | VGS=0V, ID=250μA | 2 |
| Gate Threshold Voltage | VGS(TH) | 1.2 | 1.8 | 2.4 | V | VDS=VGS,ID=250μA | 2 |
| Zero Gate Voltage Drain Current | IDSS |  |  | 1 | μA | VDS=40V,VGS=0V | 2 |
| Zero Gate Voltage Drain Current (Tj=125℃) | IDSS |  |  | 100 | μA | VDS=40V,VGS=0V | 2 |
| Gate-Body Leakage Current | IGSS | -100 |  | 100 | nA | VGS=±20V,VDS=0V | 2 |
| Drain-Source On-State Resistance | RDS(ON) |  | 2.5 | 4 | mΩ | VGS=10V, ID=60A | 2 |
| Drain-Source On-State Resistance | RDS(ON) |  | 3.5 | 6 | mΩ | VGS=4.5V, ID=30A | 2 |
| Input Capacitance | Ciss | 5600 | 6605 | 7600 | pF | VDS=20V,VGS=0V, f=1MHz | 2 |
| Output Capacitance | Coss | 400 | 550 | 700 | pF |  | 2 |
| Reverse Transfer Capacitance | Crss | 320 | 440 | 560 | pF |  | 2 |
| Forward on voltage | VSD |  | 0.9 | 1.2 | V | ISD=30A,VGS=0V | 2 |
| Diode continuous forward current | IS |  |  | 200 | A | TC=25°C | 1 |
| Continuous drain current | ID |  |  | 200 | A | @VGS=-10V, TC=25°C | 1 |
| Continuous drain current | ID |  |  | 142 | A | @VGS=-10V, TC=100°C | 1 |
| Pulse drain current tested | IDM |  |  | 800 | A | TC=25°C | 1 |
| Avalanche energy, single pulsed | EAS |  |  | 390 | mJ | single pulsed | 1 |
| Maximum power dissipation | PD |  |  | 150 | W | TC=25°C | 1 |
| Gate-Source voltage | VGS | -20 |  | 20 | V |  | 1 |
| Storage and operating temperature range | TSTG, TJ | -55 |  | 175 | °C |  | 1 |
| Thermal Resistance-Junction to Case | RθJC |  | 1 |  | °C/W |  | 1 |
| Thermal Resistance-Junction to Ambient | RθJA |  | 62.5 |  | °C/W |  | 1 |

## CAD (KiCad official)

- Symbol: `VS40200AT`
- Footprint: `Package_TO_SOT_THT:TO-220F-3_Vertical`
- 3D model: ITO-220AB-3 (KiCad packages3D, STEP)

## Provenance

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

- **Datasheet:** [Vanguard datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588897042706419712) (5 pp, sha256 `086e191e115a88f8`, retrieved 2026-10-15, 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/vs40200at-datasheet.pdf)