The IRFY340 from TT Electronics is a MOSFET with Continous Drain Current 6.9 A, Drain Source Resistance 550 to 630 milliohm, Drain Source Breakdown Voltage 400 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Through Hole. More details for IRFY340 can be seen below.