View 2sb1539 e datasheet:

Transistor 2SB1539 Silicon PNP epitaxial planer type For low-frequency amplification Unit: mm Complementary to 2SD2359 1.5± 0.1 4.5± 0.1 Features 1.6± 0.2 Low collector to emitter saturation voltage VCE(sat). Large collector power dissipation PC. 45° Mini Power type package, allowing downsizing of the equipment and automatic insertion through the tape packing and the maga- zine packing. 0.4± 0.08 0.4± 0.04 0.5± 0.08 1.5± 0.1 3.0± 0.15 Absolute Maximum Ratings (Ta=25?C) 3 2 1 Parameter Symbol Ratings Unit marking Collector to base voltage VCBO –20 V Collector to emitter voltage VCEO –20 V Emitter to base voltage VEBO –5 V 1:Base 2:Collector EIAJ:SC–62 Peak collector current ICP –1.2 A 3:Emitter Mini Power Type Package Collector current IC –1 A Collector power d