View stk13003 datasheet:

STK13003 ® HIGH VOLTAGE FAST-SWITCHING NPN POWER TRANSISTOR STK13003 IS REVERSE PINS OUT Vs STANDARD SOT-82 PACKAGE MEDIUM VOLTAGE CAPABILITY LOW SPREAD OF DYNAMIC PARAMETERS MINIMUM LOT-TO-LOT SPREAD FOR RELIABLE OPERATION VERY HIGH SWITCHING SPEED APPLICATIONS: ELECTRONIC BALLASTS FOR FLUORESCENT LIGHTING SWITCH MODE POWER SUPPLIES SOT-82 DESCRIPTION The device is manufactured using high voltage Multi Epitaxial Planar technology for high switching speeds and medium voltage capability. It uses a Cellular Emitter structure with planar edge termination to enhance switching speeds INTERNAL SCHEMATIC DIAGRAM while maintaining the wide RBSOA. The device is designed for use in lighting applications and low cost switch-mode power supplies. ABSOLUTE MAXIMUM RA