The BUK201-50Y TOPFET high side switch is an overload protected power switch based on MOSFET technology. It features low on-state resistance, 5V logic compatible input, overtemperature protection, overload protection, and high supply voltage load protection.
This document is a product specification for the Philips BUK201-50Y, a PowerMOS transistor designed as a monolithic temperature and overload protected power switch. It utilizes MOSFET technology in a 5-pin plastic envelope configured as a single high side switch.
The device features low on-state resistance, 5V logic compatibility, and comprehensive protection mechanisms including overtemperature, short circuit load, and supply undervoltage lockout. It is intended for driving lamps, motors, solenoids, and heaters.
| Nominal load current (ISO) | 6 A |
|---|---|
| Continuous off-state supply voltage | 50 V |
| Continuous load current | 15 A |
| On-state resistance (typical) | 60 mΩ |
| Continuous junction temperature | 150 °C |
Yes, it includes overtemperature protection that self-resets with hysteresis.
The device supports a continuous load current of up to 15 A.
The maximum total power dissipation is 83.3 W when the ambient temperature is 25 °C.
The total switching time during turn-on is typically 40 µs.