The CQB150-300S28 from Cincon Electronics is a DC to DC Converter with Input Voltage 180 to 425 V, Output Voltage 1 28 V, Output Current 1 5400 mA, Output Power 150000 mW, Isolation Voltage 500 to 3000 V. Tags: Through Hole, Buck/Step down. More details for CQB150-300S28 can be seen below.