The SiB422EDK from Vishay is a MOSFET with Continous Drain Current 9 A, Drain Source Resistance 25 to 82 Milliohm, Drain Source Breakdown Voltage 20 V, Gate Source Voltage -8 to 8 V, Gate Source Threshold Voltage 0.4 to 1 V. Tags: Surface Mount. More details for SiB422EDK can be seen below.