View mje172-182 datasheet:

MJE172 MJE182 ® COMPLEMENTARY SILICON POWER TRANSISTORS SGS-THOMSON PREFERRED SALESTYPES COMPLEMENTARY PNP - NPN DEVICES DESCRIPTION The MJE172 (PNP type) and MJE182 (NPN type) are silicon epitaxial planar, complementary transistors in Jedec SOT-32 plastic package, they are designed for low power audio amplifier and low current, high speed switching applications. 1 2 3 SOT-32 INTERNAL SCHEMATIC DIAGRAM ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit NPN MJE182 PNP MJE172 VCEO Collector-Emitter Voltage (IB = 0) 80 80 V VCBO Collector-Base Voltage (IE = 0) 100 100 V V Base-Emitter Voltage (I = 0) 7 7 V EBO C IC Collector Current 3 3 A I Collector Peak Current 6 6 A CM IB Base Current 1 1 A Ptot Total Power Dissipation at Tcase ? 25 oC 12.5 12.5 W 1/4 S