C09131D0121002U is an M16 D circular DIN connector from Amphenol's signalmate® C091 family, designed for industrial signal and power connections with environmental protection up to IP65/67/69K when mated. The connector features a metal screw coupling system, 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 10A for 2-3 positions, 7A for 5-8 positions, and 3A for 12-14 positions at +40°C. The connector offers excellent EMI shielding capability with contact resistance below 5mO, insulation resistance exceeding 10¹²O, and operates reliably across a temperature range of -40°C to +100°C. With solder and crimp termination options, AWG range of 18-28, and UL 94 V0 flammability rating, this connector is ideal for measuring instruments, industrial equipment, and 4G/5G mobile radio network applications requiring robust environmental sealing and signal integrity.