The EC3A15MS from Cincon Electronics is a DC to DC Converter with Input Voltage 9 to 18 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 EC3A15MS can be seen below.