The CHB150W-48S3V3 from Cincon Electronics is a DC to DC Converter with Input Voltage 18 to 75 V, Output Voltage 1 3.3 V, Output Current 1 30000 mA, Output Power 99000 to 150000 mW, Isolation Voltage 1500 V. Tags: Through Hole, Buck/Step down. More details for CHB150W-48S3V3 can be seen below.