The 36F1209XT-1WR2 from Ideal Power Ltd is a DC to DC Converter with Input Voltage 10.8 to 13.2 V, Output Voltage 1 9 V, Output Current 1 12 to 111 mA, Output Power 1000 mW, Isolation Voltage 3000 V. Tags: Surface Mount, Buck/Step down. More details for 36F1209XT-1WR2 can be seen below.