The B78E12-1R0-R2 from Pulse Electronics is a DC to DC Converter with Input Voltage 15 to 36 V, Output Voltage 1 12 V, Output Current 1 0 to 1000 mA, Output Power 1.6 to 24 W, Operating Temperature -40 to 85 Degree C. Tags: Through Hole, Buck/Step down. More details for B78E12-1R0-R2 can be seen below.