The QMS25H48S5 from Calex Manufacturing is a DC to DC Converter with Input Voltage 36 to 75 V, Output Voltage 1 5 V, Output Current 1 5000 mA, Output Power 25 W, Isolation Voltage 1.5 kV. Tags: Through Hole, Buck/Step down. More details for QMS25H48S5 can be seen below.