The IRF4905 from JSMicro Semiconductor is a MOSFET with Continous Drain Current -24 to -50 A, Drain Source Resistance 28 to 55 milli-ohm, Drain Source Breakdown Voltage -60 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage -1.0 to -2.0 V. Tags: Through Hole. More details for IRF4905 can be seen below.