The MMFTN123-Q from Diotec Semiconductor is a MOSFET with Continous Drain Current 0.17 A, Drain Source Resistance 6000 to 10000 milliohm, Drain Source Breakdown Voltage 100 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 0.8 to 2 V. Tags: Surface Mount. More details for MMFTN123-Q can be seen below.