The SMTR2812D from Crane Aerospace & Electronics is a DC to DC Converter with Input Voltage 16 to 40 V, Output Voltage 1 11.58 to 12.42 V, Output Current 1 0 to 2.5 A, Output Power 0 to 30 W, Power Consumption 6 to 12 W (Dissipation). Tags: Surface Mount. More details for SMTR2812D can be seen below.