View 2sa1533 e datasheet:

Transistor 2SA1533 Silicon PNP epitaxial planer type For low-frequency driver amplification Unit: mm Complementary to 2SC3939 5.0± 0.2 4.0± 0.2 Features High collector to emitter voltage VCEO. Optimum for the driver stage of a low-frequency and 25 to 30W output amplifier. 0.7± 0.1 Absolute Maximum Ratings (Ta=25?C) Parameter Symbol Ratings Unit +0.15 +0.15 Collector to base voltage VCBO –80 V 0.45 –0.1 0.45 –0.1 Collector to emitter voltage VCEO –80 V 1.27 1.27 Emitter to base voltage VEBO –5 V Peak collector current ICP –1 A 1:Emitter 1 2 3 2:Collector Collector current IC – 0.5 A 2.54± 0.15 3:Base Collector power dissipation PC 1 W TO–92NL Package Junction temperature Tj 150 ?C Storage temperature Tstg –55 ~ +150 ?C Electrical Characteristics (Ta=25?C) Par