The SMP113 from InterFET is a Junction Field Effect Transistor (JFET) with Drain Saturation Current 5 to 150 mA, Gate Source Voltage -50 V, Forward Transfer Admittance 5 to 50 mS, Gate Current 10 mA, Gate Reverse Current -1 nA. Tags: Surface Mount. More details for SMP113 can be seen below.