The SPF1K12D9 from Calex Manufacturing is a DC to DC Converter with Input Voltage 10.8 to 13.2 V, Output Voltage 1 9 V, Output Current 1 56 mA, Output Power 1 W, Output Voltage 2 -9 V. Tags: Through Hole, Buck/Step down. More details for SPF1K12D9 can be seen below.