In summary, the Murata SPM15 DC/DC converter series operates from the wide 4:1 input voltage ranges of 9-36V or 18-75V. The SPM25 series has all the same features and functionality, but offers 25W of output power from a narrower 2:1 input voltage range of 36-75V. The SPM15 input voltage range of 9-36V supports the nominal 12V, 24V, and 28V systems, while the 18-75V range supports the nominal 24V, 28V, 48V, and 60V systems typically found in communications environments. SPM15 models are available with 3.3V, 5 V, 12V and 15V outputs, each delivering 15W of power in the industry-standard 1” x 1” footprint and pin-out. Three output voltages are available in the SPM25 series; 3.3V, 5V, and 12V. The units have an operating temperature range of -40°C to 85°C, supporting the industrial temperature range. Fully potted with a thermal encapsulant and featuring a powder coated metal case, the SPM units are not only durable, they also have excellent resistance to corrosion from various petrochemicals, acids, solvents, salt fog, and microbial growth.