The CQS48018-50 from Cosel is a DC to DC Converter with Input Voltage 36 to 76 V, Output Voltage 1 1.8 V, Output Current 1 50 A, Output Power 90000 mW, Isolation Voltage 1500 Vdc. Tags: Through Hole, Buck/Step down. More details for CQS48018-50 can be seen below.