View 2sc4406 datasheet:

Ordering number:EN2759A NPN Epitaxial Planar Silicon Transistor 2SC4406 VHF Frequency Mixer, Local Oscillator Applications Applications Package Dimensions · VHF mixer, frequency converters, local oscillators. unit:mm 2059B Features [2SC4406] 0.3 · High cutoff frequency : fT=1.2GHz typ 0.15 · High power gain : PG=15dB typ (f=0.4GHz) 3 · Good dependence of fT on current. 0~0.1 · Very small-sized package permitting 2SC4406- applied sets to be made smaller and slimmer. 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 30 V Collector-to-Emitter Voltage VCEO 15 V Emitter-to-Base Voltage VEBO 3 V Collector Cur