The PJF4NA70 from PANJIT Semiconductor is a MOSFET with Continous Drain Current 4 A, Drain Source Resistance 2500 to 2800 milliohm, Drain Source Breakdown Voltage 700 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Through Hole. More details for PJF4NA70 can be seen below.