2SK3878
Overview
The Nell 2SK3878 is a three-terminal silicon device with current conduction capability of 9A, fast switching speed, low on-state resistance, breakdown voltage rating of 900V, and max. threshold voltage of 4 volts. They are designed for use in applications such as switched mode power supplies, DC to DC converters, motor control circuits,UPS, switching regulator and general purpose switching applications.
Representative 2SK3878 image (package may vary by manufacturer)