The MHFW31212 from Cosel is a DC to DC Converter with Input Voltage 4.5 to 18 V, Output Voltage 1 12 V, Output Current 1 0.13 A, Output Power 3120 mW, Output Voltage 2 -12 V. Tags: Through Hole, Buck-Boost. More details for MHFW31212 can be seen below.