The MA03-24S09 from Total Power International is a DC to DC Converter with Input Voltage 21.6 to 26.4 V, Output Voltage 1 9 V, Output Current 1 6 to 333 mA, Output Power 3000 mW, Operating Temperature -40 to 85 Degree C. Tags: Through Hole, Buck/Step down. More details for MA03-24S09 can be seen below.