View 2sc4452 datasheet:

Ordering number:EN2811 NPN Epitaxial Planar Silicon Transistor 2SC4452 High-Speed Switching Applications Features Package Dimensions · Fast switching speed. unit:mm · Low collector saturation voltage. 2059B · High gain-bandwidth product. [2SC4452] · Small collector capacity. 0.3 0.15 · Very small-sized package permitting the 2SC4452- 3 applied sets to be made small and slim. 0~0.1 1 2 0.3 0.6 0.65 0.65 0.9 2.0 1 : Base 2 : Emitter 3 : Collector SANYO : MCP Specifications Absolute Maximum Ratings at Ta = 25?C Parameter Symbol Conditions Ratings Unit Collector-to-Base Voltage VCBO 40 V Collector-to-Emitter Voltage VCES 40 V VCEO 15 V Emitter-to-Base Voltage VEBO 5 V Collector Current IC 200 mA Collector Current (Pulse) ICP 500 mA Base Current IB 40 mA