The EC4BU-05S12 from Cincon Electronics is a DC to DC Converter with Input Voltage 4.7 to 9 V, Output Voltage 1 12 V, Output Current 1 833 mA, Output Power 10000 mW, Isolation Voltage 1500 V. Tags: Through Hole, Boost/Step Up. More details for EC4BU-05S12 can be seen below.