The 36WRB4812S-3WR2 from Ideal Power Ltd is a DC to DC Converter with Input Voltage 36 to 75 V, Output Voltage 1 12 V, Output Current 1 13 to 250 mA, Output Power 3000 mW, Isolation Voltage 1500 V. Tags: Through Hole, Buck/Step down. More details for 36WRB4812S-3WR2 can be seen below.