The FQN1N50CTA from onsemi is a MOSFET with Continous Drain Current 0.38 A, Drain Source Resistance 4600 to 6000 milli-ohm, Drain Source Breakdown Voltage 500 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Through Hole. More details for FQN1N50CTA can be seen below.