# IRF9540PBF

**Vishay Intertech** · MOSFETs · TO-220AB

IRF9540PBF from Vishay Intertech, in a TO-220AB. 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 P-channel MOSFET; gate-source voltage is rated ±20 V (VGS). |
| 2 | D | passive | Drain of the P-channel MOSFET; drain-source voltage is rated -100 V (VDS) with continuous drain current of -19 A at TC = 25 °C. |
| 3 | S | passive | Source of the P-channel MOSFET; the integral body diode is rated for a continuous source-drain current of -19 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Vishay Intertech |
| Package | TO-220AB |
| 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 |  |  | -100 | V |  | 1 |
| Gate-Source Voltage | VGS | -20 |  | 20 | V |  | 1 |
| Continuous Drain Current | ID |  |  | -19 | A | VGS at -10 V, TC = 25 °C | 1 |
| Continuous Drain Current | ID |  |  | -13 | A | TC = 100 °C | 1 |
| Pulsed Drain Current | IDM |  |  | -72 | A |  | 1 |
| Linear Derating Factor |  |  |  | 1 | W/°C |  | 1 |
| Single Pulse Avalanche Energy | EAS |  |  | 640 | mJ |  | 1 |
| Repetitive Avalanche Current | IAR |  |  | -19 | A |  | 1 |
| Repetitive Avalanche Energy | EAR |  |  | 15 | mJ |  | 1 |
| Maximum Power Dissipation | PD |  |  | 150 | W | TC = 25 °C | 1 |
| Peak Diode Recovery dV/dt | dV/dt |  |  | -5.5 | V/ns |  | 1 |
| Operating Junction and Storage Temperature Range | TJ, Tstg | -55 |  | 175 | °C |  | 1 |
| Soldering Recommendations (Peak Temperature) |  |  |  | 300 | °C | for 10 s | 1 |
| Mounting Torque |  |  |  | 10 | lbf · in | 6-32 or M3 screw | 1 |
| Mounting Torque |  |  |  | 1.1 | N · m | 6-32 or M3 screw | 1 |
| Drain-Source Breakdown Voltage | VDS | -100 |  |  | V | VGS = 0 V, ID = - 250 μA | 2 |
| VDS Temperature Coefficient | VDS/TJ |  |  | 0.087 | V/°C | Reference to 25 °C, ID = - 1 mA | 2 |
| Gate-Source Threshold Voltage | VGS(th) | -2 |  | -4 | V | VDS = VGS, ID = - 250 μA | 2 |
| Gate-Source Leakage | IGSS | -100 |  | 100 | nA | VGS = ± 20 V | 2 |
| Zero Gate Voltage Drain Current | IDSS |  |  | -100 | μA | VDS = - 100 V, VGS = 0 V | 2 |
| Zero Gate Voltage Drain Current | IDSS |  |  | -500 | μA | VDS = - 80 V, VGS = 0 V, TJ = 150 °C | 2 |
| Drain-Source On-State Resistance | RDS(on) |  |  | 0.2 | Ω | VGS = - 10 V ID = - 11 A | 2 |
| Forward Transconductance | gfs | 6.2 |  |  | S | VDS = - 50 V, ID = - 11 A | 2 |
| Total Gate Charge | Qg |  |  | 61 | nC | VGS = - 10 V ID = - 19 A, VDS = - 80 V | 2 |
| Gate-Source Charge | Qgs |  |  | 14 | nC |  | 2 |
| Gate-Drain Charge | Qgd |  |  | 29 | nC |  | 2 |
| Continuous Source-Drain Diode Current | IS |  |  | -19 | A | MOSFET symbol showing the integral reverse p-n junction diode | 2 |
| Pulsed Diode Forward Current | ISM |  |  | -72 | A |  | 2 |
| Body Diode Voltage | VSD |  |  | -5 | V | TJ = 25 °C, IS = - 19 A, VGS = 0 V | 2 |
| Body Diode Reverse Recovery Time | trr |  | 130 | 260 | ns | TJ = 25 °C, IF = - 19 A, dI/dt = 100 A/μs | 2 |
| Body Diode Reverse Recovery Charge | Qrr |  | 0.35 | 0.7 | μC |  | 2 |
| Maximum Junction-to-Ambient | RthJA |  |  | 62 | °C/W |  | 2 |
| Maximum Junction-to-Case (Drain) | RthJC |  |  | 1 | °C/W |  | 2 |
| Case-to-Sink, Flat, Greased Surface | RthCS |  | 0.5 |  | °C/W |  | 2 |

## CAD (KiCad official)

- Symbol: `IRF9540PBF`
- Footprint: `Package_TO_SOT_THT:TO-220-3_Vertical`
- 3D model: TO-220AB (KiCad packages3D, STEP)
- 3D model files: `irf9540pbf-etched.step` / `irf9540pbf-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `irf9540pbf.step` / `irf9540pbf.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Vishay Intertech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588889823612981248) (9 pp, sha256 `e563a646398c5bfd`, retrieved 2026-10-19, 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/irf9540pbf-datasheet.pdf)