The SMHF4212D from Crane Aerospace & Electronics is a DC to DC Converter with Input Voltage 35 to 55 V, Output Voltage 1 11.7 to 12.3 V, Output Current 1 ±0.625 to 1.25 A, Output Power 10.5 to 15 W, Power Consumption 3 to 6 W (Dissipation). Tags: Surface Mount. More details for SMHF4212D can be seen below.