C09131D0081012 is a circular DIN connector from Amphenol's signalmate C091 (M16 Size) family, designed for reliable signal and power connections in industrial applications. The C091 family features a compact design with excellent EMI shielding capability and offers environmental protection up to IP69K when mated, depending on the series variant. These connectors support various position configurations and feature temperature ratings from -40°C to +100°C, with contact termination options including solder and crimp. Common applications include measuring instruments, equipment, and 4G/5G mobile radio networks where signal integrity and environmental protection are critical.