View 2sd1725 datasheet:

Ordering number:ENN2048B PNP/NPN Epitaxial Planar Silicon Transistors 2SB1168/2SD1725 Large Current Switching Applications Features Package Dimensions · Relay drivers, high-speed inverters, converters. unit:mm 2043B Features [2SB1168/2SD1725] 8.0 2.0 · Low collector-to-emitter saturation voltage. 2.7 4.0 · High fT. · Excellent linearity of hFE. · Short switching time. 1.6 0.8 0.8 0.6 0.5 1 : Emitter 1 2 3 2 : Collector Specifications 2.4 3 : Base 4.8 SANYO : TO-126LP ( ) : 2SB1168 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 (–)4 A Collector Current (Pulse) ICP (–)8 A 1.2 W Colle