The TSN 1-2490A from Traco Power is a DC to DC Converter with Input Voltage -32 to -11.5 V, Output Voltage 1 -9 V, Output Current 1 1 A, Operating Temperature -40 to 85 Degree C, Storage Temperature -55 to 125 Degree C. Tags: Through Hole, Boost/Step Up. More details for TSN 1-2490A can be seen below.