2N178

2N 178 (GERMANIUM) 2N554 2N555 ~ PNP germanium power transistor for non-critical power amplifier and power switching applications re- CASE 11 (TO-3) quiring economical components. MAXIMUM RATINGS Rating Symbol 2N:178 2N554 2N555 Unit Collector-Emitter Voltage Collector-Base Voltage Emitter-Base Voltage Collector Current Total Device ,Dissipation @ TC = BO°C Operating and Storage Junction Temperature Range VCER VCB VEB Ie PD TJ , Tstg 30 16 30 Vdc 30 15 30 Vdc 20 15 15 Vdc 3.0 Adc 10 Watts -40 to +90 °c 50 POWER-TEMPERATURE DERATING CURVE 1\. 1\ ""' "- ,1'\ r\ o :0 IU I 10o TC. CASE TEMPERATURE (OC) 2N178, 2N555 SAFE OPERATING AREAS. 5 _An 5 POWER DISSIPATION AT 3D~ TEMPERATURE 2N554 ........' \ H3 ZN17. 2 2N555 I 'I'" , I I:~, 3 2 Ii ~,~~" t>....." I:Af--.. ~ I - -=R'tISSIPATION AT 300c CASE TEMPEIATUIE I--- u .3 .D. 0 20 30 50 COlLECTO_1TTElI VOlTACE (VOlT$) The Safe Operating Area Curves indicate leVelD limits b...