The NTR3C21NZT3G from onsemi is a MOSFET with Continous Drain Current 6.5 A, Drain Source Resistance 18 to 55 milliohm, Drain Source Breakdown Voltage 20 V, Gate Source Voltage -8 to 8 V, Gate Source Threshold Voltage 0.45 to 1 V. Tags: Surface Mount. More details for NTR3C21NZT3G can be seen below.