L77TSEH09SOL2RM5C309 is a 9-contact D-Sub connector featuring stamped and formed brass contacts with selective gold plating and a steel shell with tin over nickel plating. The connector is designed for straight PCB termination with boardlock mounting (RM5) and meets MIL C24308 specifications with UL File E232356 certification. It delivers a current rating of 5A at 600V AC/rms, with contact resistance of 10mO maximum and insulation resistance of 5000MO, ensuring reliable electrical performance. The connector operates across a wide temperature range of -55°C to +125°C and features a mating force of 3.05 kg (6.74 lb) maximum for 9 contacts. This connector is ideal for industrial, telecom, and standard I/O applications requiring robust, cost-effective PCB-mounted connections.