The SMSA2812S from Crane Aerospace & Electronics is a DC to DC Converter with Input Voltage 16 to 40 V, Output Voltage 1 11.64 to 12.36 V, Output Current 1 0.417 A, Output Power 5 W, Power Consumption 1.2 to 2.1 W (Dissipation). Tags: Surface Mount. More details for SMSA2812S can be seen below.