142-1801-501

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Coaxial connectors are essential components in communication systems, electronic equipment, measuring systems and many other kinds of applications. In particular, RF coaxial connectors, which are designed to operate at frequency ranges of up to 18 GHz, are used for very low loss interconnections in the radio-frequency spectrum. The 142-1801-501 is a popular RF coaxial connector frequently used in high-frequency applications, such as 5G cellular communications, radar systems, fiber optics and satellite communication equipment. It also finds use in professional and consumer broadcast television equipment, military communications and avionic systems.The 142-1801-501 is a type of reverse polarity SMA (RP-SMA) connector, which is a version of the miniature SMA coaxial connectors, having a threaded outer conductor and a center pin contact. This reverse polarity feature is necessary to prevent the connector being inserted with the wrong polarity into the mating receptacle, leading to contact problems. The SMA, which stands for Sub Miniature type A, is characterized by its small size and outstanding electrical performance and is one of the most widely used standard RF coaxial connectors.The 142-1801-501 connector has a two-piece design that includes a plug and a jack. The plug consists of an inner center contact, a cylindrical insulator, and a threaded nut to secure the assembly to the cable. The jack includes a center contact that mates with the plug center contact, an insulator that provides electrical insulation, a spring for retention, and a threaded nut. The inner center contact on the plug is a solid, highly conductive metal element. The outer threaded collar helps secure the cable or adapter to the connector body.Both, the plug and the jack, are fabricated from a combination of metal alloys, such as brass and beryllium copper, in order to ensure durability and stability of dimensions. The body of the 142-1801-501 connector is designed with a threaded barrel, and is commonly available with a variety of finishes, such as nickel, bronze and gold plating. While there are many types of RF coaxial connectors in use, a chief advantage of the 142-1801-501 is its robustness, which, in many cases, makes it the best choice for outdoor applications due to its protection against dust, dirt and moisture.The electrical performance of the 142-1801-501 is excellent, providing low insertion loss (generally 1 dB lower than standard SMA) and good return loss characteristics, which allows it to be used with a wide range of frequencies. Specifically, the 142-1801-501 is rated for frequency ranges of up to 18 GHz, which makes it ideal for 5G wireless communications, satellite communications, radar systems, and avionics.The working principle of the 142-1801-501 is based on the basic principles of impedance matching to reduce the reflections of signal travelling along a transmission line. It does this by providing a low impedance path between the two components being connected, thus ensuring maximum signal transfer from one device to another. This is achieved by combining the center contact, threaded nut, and threaded outer collar to provide a low-loss connection with correct impedance.The 142-1801-501 is a versatile and reliable RF connector that has a wide application field for a range of frequencies up to 18 GHz. Its unique reverse polarity design and robust construction make it the ideal choice for high-frequency applications such as 5G cellular communications, radar systems, fiber optics, satellite communication, broadcasting and avionics. The excellent electrical performance and low insertion loss offered by the 142-1801-501 make it the preferred option for many applications.

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