The SiB452DK from Vishay is a MOSFET with Continous Drain Current 1.5 A, Drain Source Resistance 1800 to 6000 Milliohm, Drain Source Breakdown Voltage 190 V, Gate Source Voltage -16 to 16 V, Gate Source Threshold Voltage 0.6 to 1.5 V. Tags: Surface Mount. More details for SiB452DK can be seen below.