The 48S5.30HEW from Calex Manufacturing is a DC to DC Converter with Input Voltage 18 to 75 V, Output Voltage 1 5 V, Output Current 1 30 A, Output Power 150 W, Isolation Voltage 1.544 kV. Tags: PCB Mount, Buck/Step down. More details for 48S5.30HEW can be seen below.