The SPM1R12D5 from Calex Manufacturing is a DC to DC Converter with Input Voltage 10.8 to 13.2 V, Output Voltage 1 5 V, Output Current 1 100 mA, Output Power 1 W, Output Voltage 2 -5 V. Tags: Through Hole, Buck/Step down. More details for SPM1R12D5 can be seen below.