The 36WRB1209S-3WR2 from Ideal Power Ltd is a DC to DC Converter with Input Voltage 9 to 18 V, Output Voltage 1 9 V, Output Current 1 17 to 333 mA, Output Power 3000 mW, Isolation Voltage 1500 V. Tags: Through Hole, Buck-Boost. More details for 36WRB1209S-3WR2 can be seen below.