View bdw93-94 datasheet:

BDW93B/BDW93C BDW94B/BDW94C COMPLEMENTARY SILICON POWER DARLINGTON TRANSISTORS SGS-THOMSON PREFERRED SALESTYPES COMPLEMENTARY PNP - NPN DEVICES INTEGRATED ANTIPARALLEL COLLECTOR-EMITTER DIODE APPLICATIONS LINEAR AND SWITCHING INDUSTRIAL EQUIPMENT 3 2 DESCRIPTION 1 The BDW93B, and BDW93C are silicon epitaxial-base NPN power transistors in TO-220 monolithic Darlington configuration and are mounted in Jedec TO-220 plastic package. They are intented for use in power linear and switching applications. The complementary PNP types are the BDW94B and BDW94C respectively. INTERNAL SCHEMATIC DIAGRAM R Typ. = 10 K? R Typ. = 150 ? 1 2 ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit NPN BDW93B BDW93C PNP BDW94B BDW94C VCBO Collector-Base Voltage (IE = 0) 80 100 V