The THM 3-0510 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 1 A, Output Power 3 W, Isolation Voltage 5 kV. Tags: Through Hole, Buck/Step down. More details for THM 3-0510 can be seen below.