The IRHLUBC770Z4 from Infineon Technologies is a MOSFET with Continous Drain Current 0.8 A, Drain Source Resistance 680 milliohm, Drain Source Breakdown Voltage 60 V, Gate Source Voltage -10 to 10 V, Gate Source Threshold Voltage 1 to 2 V. Tags: Surface Mount. More details for IRHLUBC770Z4 can be seen below.