The 173950378 from Wurth Elektronik is a DC to DC Converter with Input Voltage 6 to 28 V, Output Voltage 1 3.3 V, Output Current 1 0.5 A, Operating Temperature -40 to 85 Degree C, Storage Temperature -55 to 125 Degree C. Tags: Through Hole, Buck/Step down. More details for 173950378 can be seen below.