The 2N6661-HR from Digitron Semiconductors is a MOSFET with Continous Drain Current 0.86 A, Drain Source Resistance 3.6 to 7.5 Ohm, Drain Source Breakdown Voltage 90 to 125 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 0.3 to 2.5 V. Tags: Through Hole. More details for 2N6661-HR can be seen below.