The PJF5NA50 from PANJIT Semiconductor is a MOSFET with Continous Drain Current 5 A, Drain Source Resistance 1380 to 1550 milliohm, Drain Source Breakdown Voltage 500 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Through Hole. More details for PJF5NA50 can be seen below.