View 2sd1684 datasheet:

Ordering number:2041A PNP/NPN Epitaxial Planar Silicon Transistors 2SB1144/2SD1684 100V/1.5A Switching Applications Features Package Dimensions · Adoption of FBET and MBIT processes. unit:mm · High breakdown voltage. 2042B · Low saturation voltage. [2SB1144/2SD1684] · Plastic-covered heat sink facilitating high-density mounting. 1 : Emitter 2 : Collector 3 : Base ( ) : 2SB1144 SANYO : TO-126ML Specifications Absolute Maximum Ratings at Ta = 25?C Parameter Symbol Conditions Ratings Unit Collector-to-Base Voltage VCBO (–)120 V Collector-to-Emitter Voltage VCEO (–)100 V Emitter-to-Base Voltage VEBO (–)6 V Collector Current IC (–)1.5 A Collector Current (Pulse) ICP (–)2.0 A Collector Dissipation PC 1.5 W Tc=25?C 10 W ?C Junction Temperature Tj 150 Storage Temp