The 3.5 mm connector, which utilizes air dielectric for higher frequency is a precision connector known for its durability. Its durability only rated for 500 times of connect/disconnect operations. It has limited number of connection cycles in the measurement and calibration applications. SMA is not a precision connector used in the laboratory. It was designed to be used in semi-rigid cable assemblies and the parts not needing repeated connection or disconnection. SMA was designed to be an economical miniaturized system connector. Besides, Chin Nan provides various solutions such as non-magnetic, sealed and reverse-polarity in SMA series. SMA has a wide range of applications, such as telecommunications, wireless communications, measurement, and microwave systems (filters, attenuators, and oscillators). They maintain the same mechanical characteristics and are able to mate with standard SMA connectors.Ĭhin Nan offers an extensive line of SMA receptacles and cable connectors for semi-rigid and flexible coaxial cables. SMA connectors operate up to 18 GHz, but in order to respond to the growth of the communication system, there is an extended version that operates up to 27 GHz for higher frequency applications.Ĭhin Nan SMA 27 GHz connectors feature stainless steel construction and passivated or gold plating. There are several high frequency connectors which apply the same outside thread as SMA could potentially mate with SMA connectors, such as 3.5 mm connector, frequency rated to 34 GHz and 2.92 mm connector, frequency rated to 40 GHz. Besides conforming to the interface, Chin Nan upgrades the performance for MIL-STD-348B connectors in the meantime. SMA connectors feature an impedance of 50 Ω and a 1/4-inch diameter, 36-thread-per-inch threaded interface with a screw-on coupling mechanism.Ĭhin Nan SMA connectors are built in accordance with MIL-STD-348 interface which latest version is MIL-STD-348B. In the following, we would like to provide the insight of SMA connectors and indicate features of Chin Nan's SMA connectors. The small size, outstanding durability and reliable performance make SMA connector favorite choice for RF engineers. We also offer custom made coaxial cables, please see here.SMA (Sub Miniature version A) connectors are most widely used coaxial RF connectors nowadays. You can find these dimensions in the following file in the download area above: Kabel-Längenmaße für Crimpstecker (PDF, 173KB) If you want to crimp the connectors yourself, you need the exact dimensions to which the outer sheath, the outer conductor and the dielectric must be cut. Of course we supply the required tools as well, please see Crimp tools. That means that these connectors are not soldered but that the outer shield is pressed onto the shaft of the connector with a special tool. Most of the connectors offered here are crimp connectors. On our website Wifi connectors this is explained in greater detail and with pictures. Usually all connectors with an outside thread are called a jack, all with a nut with inner thread are plugs, regardless of the polarity of the center conductor. This leads to quite some confusion about what is a plug and what is a jack. Instead of a male conductor you find a female contact and vice versa. That means that the center conductor has an inversed polarity. The SMA connectors offered here have a gold plated center conductor and nickel plated exterior.įor Wifi equipment (wireless LAN) often so called reverse polarity, or RP-SMA connectors are used. SMA connectors can be used up to frequencies of more than 14GHz, depending on the model of the connector. Most amateur radio handheld radios do use a SMA female connector. SMA connectors are used for device internal cables as well as external antenna connectors for small antennas. Frequency Counter, Near Field Receivers.Morse keys, electronic keyers, accessories.Stationary, directional antennas (Yagi, X-Quad).
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