DESCRIPTION
The BUL138FP 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. 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 125oC
■ FULLY INSULATED PACKAGE (U.L.COMPLIANT) FOR EASY MOUNTING

APPLICATIONS
■ ELECTRONIC BALLASTS FOR FLUORESCENT LIGHTING
■ FLYBACK AND FORWARD SINGLE TRANSISTOR LOW POWER CONVERTERS