The TSR 1-2433SM from Traco Power is a DC to DC Converter with Input Voltage 4.75 to 36 V, Output Voltage 1 3.3 V, Output Current 1 1 A, Operating Temperature -40 to 85 Degree C, Storage Temperature -55 to 125 Degree C. Tags: Surface Mount, Buck/Step down. More details for TSR 1-2433SM can be seen below.