The EC3A05MS from Cincon Electronics is a DC to DC Converter with Input Voltage 4.5 to 6 V, Output Voltage 1 -12 to 12 V, Output Current 1 -125 to 125 mA, Output Power 3000 mW, Isolation Voltage 500 V. Tags: Through Hole, Buck-Boost. More details for EC3A05MS can be seen below.