The TK8A45D from Toshiba is a MOSFET with Continous Drain Current 8 A, Drain Source Resistance 730 to 900 Milliohm, Drain Source Breakdown Voltage 450 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 2.4 to 4.4 V. Tags: Through Hole. More details for TK8A45D can be seen below.