The TMR 2-0510E from Traco Power is a DC to DC Converter with Input Voltage 4.5 to 9 V, Output Voltage 1 3.3 V, Output Current 1 0.5 A, Output Power 2 W, Isolation Voltage 1 kV. Tags: Through Hole, Buck/Step down. More details for TMR 2-0510E can be seen below.