The SHDC225509 from Sensitron Semiconductor is a MOSFET with Continous Drain Current 6 A, Drain Source Resistance 2.0 ohm, Drain Source Breakdown Voltage 1000 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2.0 to 4.5 V. Tags: Through Hole. More details for SHDC225509 can be seen below.