DESCRIPTION 
The BUL310FP is manufactured using high voltage Multi Epitaxial Planar technology for high switching speeds and high voltage capability. It uses a Cellular Emitter structure with planar edge termination to enhance switching speeds while maintaining a wide RBSOA.
​​​​​​​The BUL series is designed for use in lighting applications and low cost switch-mode power supplies. 

■ STMicroelectronics PREFERRED SALESTYPE
■ NPN TRANSISTOR
■ HIGH VOLTAGE CAPABILITY
■ LOW SPREAD OF DYNAMIC PARAMETERS
■ MINIMUM LOT-TO-LOT SPREAD FOR RELIABLE OPERATION
■ VERY HIGH SWITCHING SPEED
■ FULLY CHARACTERIZED AT 125°C
■ LARGE RBSOA
■ FULLY MOLDED INSULATED PACKAGE
■ 2000 V DC INSULATION (U.L. COMPLIANT)

APPLICATIONS
■ HORIZONTAL DEFLECTION FOR COLOUR TV
■ ELECTRONIC BALLASTS FOR FLUORESCENT LIGHTING
■ FLYBACK AND FORWARD SINGLE TRANSISTOR LOW POWER CONVERTERS