The MMFTP2319 from Diotec Semiconductor is a MOSFET with Continous Drain Current -4.2 A, Drain Source Resistance 80 to 120 milliohm, Drain Source Breakdown Voltage -40 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage -3 to -1 V. Tags: Surface Mount. More details for MMFTP2319 can be seen below.