The 48S12.250LCS from Calex Manufacturing is a DC to DC Converter with Input Voltage 36 to 72 V, Output Voltage 1 12 V, Output Current 1 0.25 A, Output Power 3 W, Isolation Voltage 1.544 kV. Tags: PCB Mount, Buck/Step down. More details for 48S12.250LCS can be seen below.