The 3N170 from CALOGIC is a MOSFET with Continous Drain Current 30 mA, Drain Source Resistance 200 ohm, Drain Source Breakdown Voltage 25 V, Gate Source Voltage -35 to 35 V, Gate Source Threshold Voltage 1.0 to 2.0 V. Tags: Through Hole. More details for 3N170 can be seen below.