The CHB100-48S12 from Cincon Electronics is a DC to DC Converter with Input Voltage 36 to 75 V, Output Voltage 1 12 V, Output Current 1 8300 mA, Output Power 66000 to 100000 mW, Isolation Voltage 1500 V. Tags: Through Hole, Buck/Step down. More details for CHB100-48S12 can be seen below.