The Johnson / Cinch Connectivity Solutions part 142-0771-831 is a high-quality SMA connector that is designed for maximum performance. It is a solder straight edge mount connector, making it easy to use and install. The connector operates in a frequency range of 0Hz to 26.5GHz, making it suitable for a wide range of applications. It has a 50 Ohm impedance, ensuring excellent signal integrity. The connector is gold plated over nickel and copper, providing both excellent conductivity and durability. Overall, the 142-0771-831 is a reliable and versatile SMA connector that delivers exceptional performance in various electronic applications.