View 2sc4909 datasheet:

Ordering number:EN4410 NPN Epitaxial Planar Silicon Transistor 2SC4909 Muting Circuits, Drivers Features Package Dimensions � High DC current gain. unit:mm � On-chip bias resistance (R1=47k? , R2=47k? ). 2059B � Very small-sized package permitting 2SC4909- [2SC4909] applied sets to be made smaller and slimmer. 0.3 0.15 � Small ON resistance. 3 0 to 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 25 V Collector-to-Emitter Voltage VCEO 20 V Emitter-to-Base Voltage VEBO 10 V Input Voltage VIN 18 V Collector Current IC 100 mA Collector Current (Pulse) ICP 200 mA Base Current IB 20 mA Collector Dissi