View 2sa1391 datasheet:

Ordering number:EN1942A PNP/NPN Epitaxial Planar Silicon Transistors 2SA1391/2SC3382 Low Noise AF Amp Applications Features Package Dimensions · Adoption of FBET process. unit:mm · AF amp. 2003A · Low-noise use. [2SA1391/2SC3382] Noise Test Circuit JEDEC : TO-92 B : Base ( ) : 2SA1391 EIAJ : SC-43 C : Collector SANYO : NP E : Emitter Specifications Absolute Maximum Ratings at Ta = 25?C Parameter Symbol Conditions Ratings Unit Collector-to-Base Voltage VCBO (–)60 V Collector-to-Emitter Voltage VCEO (–)50 V Emitter-to-Base Voltage VEBO (–)6 V Collector Current IC (–)200 mA Collector Current (Pulse) ICP (–)400 mA Collector Dissipation PC 400 mW Junction Temperature Tj 150 ?C Storage Temperature Tstg –55 to +150 ?C Electrical Characteristics at Ta = 25?C Ratings