The SHD220721 from Sensitron Semiconductor is a MOSFET with Continous Drain Current -7 A, Drain Source Resistance 0.09 to 0.11 ohm, Drain Source Breakdown Voltage -150 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage -2 to -4 V. Tags: Surface Mount. More details for SHD220721 can be seen below.