The 48D12.125SMT from Calex Manufacturing is a DC to DC Converter with Input Voltage 36 to 75 V, Output Voltage 1 12 V, Output Current 1 0.125 A, Output Power 3 W, Output Voltage 2 -12 V. Tags: Surface Mount, Buck/Step down. More details for 48D12.125SMT can be seen below.