View 2sb1274 datasheet:

Ordering number : ENN2246B 2SB1274/2SD1913 PNP/NPN Epitaxial Planar Silicon Transistors 2SB1274/2SD1913 60V/3A Low-Frequency Power Amplifier Applications Applications Package Dimensions • General power amplifier. unit : mm 2041A [2SB1274/2SD1913] 4.5 10.0 2.8 Features 3.2 • Wide ASO (Adoption of MBIT process). • Low saturation voltage. • High reliability. • High breakdown voltage. • Micaless package facilitating mounting. 2.4 1.6 1.2 0.7 0.75 1 2 3 1 : Base 2.55 2.55 2 : Collector Specifications 3 : Emitter ( ):2SB1274 2.55 2.55 SANYO : TO-220ML Absolute Maximum Ratings at Ta=25°C Parameter Symbol Conditions Ratings Unit Collector-to-Base Voltage VCBO (-)60 V Collector-to-Emitter Voltage VCEO (-)60 V Emitter-to-Base Voltage VEBO (-)6 V Collector Cur