The BFW10 from New Jersey Semiconductor is a Junction Field Effect Transistor (JFET) with Gate Source Voltage 2 to 7.5 V, Forward Transfer Admittance 3.5 to 6.5 mS, Continous Drain Current 8 to 20 mA, Drain Source Breakdown Voltage 30 V, Gate Current 10 mA. Tags: Through Hole. More details for BFW10 can be seen below.