The 2N4856 from Microchip Technology is a RF Transistor with Supply Voltage 40 V, Voltage - Drain-Source (Vdss) 0.75 V, Voltage - Gate-Source (Vgs) -40 V(Gate-Source Breakdown Voltage), Drain Current 50 to 175 mA, Collector Current (Ic) 0.175 A. Tags: Through Hole. More details for 2N4856 can be seen below.