The BUL38D is a 450V High Voltage Fast Switching NPN Power Transistor manufactured using high voltage Multiepitaxial planar technology for high switching speeds and high voltage capability. It is designed for use in electronic transformer for halogen lamps. Fast switching times and very low saturation voltage resulting in reduced switching and conduction losses.
High voltage capability
Low spread of dynamic parameters
Minimum lot-to-lot spread for reliable operation
Very high switching speed
High ruggedness
Fully characterized at 125°C
Integrated anti-parallel collector-emitter diode
Well-controlled hFE parameter for increased reliability