The SiHB125N60EF from Vishay is a MOSFET with Continous Drain Current 25 A, Drain Source Resistance 109 to 125 Milliohm, Drain Source Breakdown Voltage 600 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 3 to 5 V. Tags: Surface Mount. More details for SiHB125N60EF can be seen below.