The PJQ5440 from PANJIT Semiconductor is a MOSFET with Continous Drain Current 100 A, Drain Source Resistance 2.2 to 3.5 milliohm, Drain Source Breakdown Voltage 40 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1 to 2.5 V. Tags: Surface Mount. More details for PJQ5440 can be seen below.