The TMR 4-4823WI from Traco Power is a DC to DC Converter with Input Voltage 18 to 75 V, Output Voltage 1 15 V, Output Current 1 0.133 A, Output Power 4 W, Output Voltage 2 -15 V. Tags: Through Hole, Buck/Step down. More details for TMR 4-4823WI can be seen below.