BULB49DT4

www.DataSheet4U.com BULB49DT4 High voltage fast-switching NPN power transistor General features ■ ■ ■ ■ ■ ■ High voltage capability Low spread of dynamic parameters Minimum lot-to-lot spread for reliable operation Very high switching speed High ruggedness Surface mounting TO-263 (D2PAK) power package In compliance with the 2002/93/EC European Directive 1 TO-263 D2PAK 3 ■ Description The device is manufactured using high voltage Multi-Epitaxial Planar technology for high switching speeds and high voltage capability. The device is designed for use in electronic transformer for halogen lamps. Internal schematic diagrams Applications ■ ■ Electronic transformers for halogen lamps Flyback and forward single transistor low power converters Order codes Part Number BULB49DT4 Marking BULB49D Package D 2PAK Packing Tape & reel July 2006 Rev 2 1/11 www.st.com 11 BULB49DT4 Contents 1 2 Electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.1 2.2 Electrical characteristics (curves) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Test circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3 4 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Revision history . . . . . . . . . . . . . . . . . . . . . ....