C09111D0030012U is an M16 D circular DIN connector from Amphenol's signalmate® C091 family, designed for industrial applications requiring robust signal and power connections. The connector features a metal screw coupling system with IP65/67/69K environmental protection rating when mated, thermoplastic dielectric material, and silver/gold contact plating for reliable performance. It supports 2 through 8, 12, and 14 position configurations with current ratings of 2-3 positions at 10A, 5-8 positions at 7A, and 12-14 positions at 3A at +40°C. The connector operates over a temperature range of -40°C to +100°C and offers excellent EMI shielding capability with contact resistance below 5mO and insulation resistance exceeding 10¹²O. Common applications include measuring instruments, 4G/5G mobile radio networks, and industrial equipment where environmental sealing and signal integrity are critical.