The 031-9-75-12G is a 75 ohm BNC right-angle plug to jack adapter designed for RF and microwave applications requiring impedance-matched connections. It features a frequency range of DC to 12 GHz with return loss specifications of -20 dB minimum from DC to 6 GHz and -15 dB minimum from 6 to 12 GHz, ensuring excellent signal integrity across its operating bandwidth. The connector is constructed with brass and nickel-plated jack body, phosphor bronze and nickel-plated plug body, PTFE insulators, and gold-plated contacts for reliable performance. With a mechanical durability rating of 500 cycles minimum and an operating temperature range of -65°C to +165°C, this adapter is suitable for demanding aerospace, military, and telecommunications applications where robust RF connectivity is essential.