View st13005 datasheet:

ST13005 STB13005-1 ? HIGH VOLTAGE FAST-SWITCHING NPN POWER TRANSISTORS MEDIUM VOLTAGE CAPABILITY NPN TRANSISTOR LOW SPREAD OF DYNAMIC PARAMETERS MINIMUM LOT-TO-LOT SPREAD FOR RELIABLE OPERATION VERY HIGH SWITCHING SPEED THROUGH-HOLE I2PAK (TO-262) POWER PACKAGE IN TUBE (SUFFIX ”-1”) 3 3 2 2 1 APPLICATIONS: 1 ELECTRONIC BALLASTS FOR FLUORESCENT LIGHTING TO-220 I2PAK SWITCH MODE POWER SUPPLIES TO-262 (Suffix ”-1”) 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 INTERNAL SCHEMATIC DIAGRAM edge termination to enhance switching speeds while maintaining the wide RBSOA. ABSOLUTE MAXIMUM RATINGS Symbol Param