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Characteristics Of SMA RF Coaxial Connector

Structural features

The SMA RF Coaxial Connector is a connector with an outer conductor diameter of 4.13 mm, a characteristic impedance of 50 Ω, and a coupling mechanism of an inch thread (1 / 4-36UNS-2A for external threads and 1 / 4-36UNS-2B for internal thread). Generally equipped with 7.85mm ~ 8mm hexagonal connecting nut, according to the applicable conditions, evenly distributed in the connection nut with a minimum diameter of 0.41mm three safety wire holes, used to pass through the diameter of 0.38mm safety wire to improve the SMA Reliability of the use of the RF Coaxial Connector.

SMA RF Coaxial Connector jack wall is very thin, must use the strength, toughness of the alloy material (such as beryllium copper alloy) manufacturing, and to the appropriate heat treatment.

The wall of the outer conductor of the SMA pin RF Coaxial Connector is thin and should be made of a good alloy material (such as beryllium copper alloy, stainless steel). The use of poor strength of the metal manufacturing, tightening torque is large, there may be outside the collapse of the phenomenon of failure. The connection mechanism is threaded, the connection is slow to connect, and requires a larger wrench space, not suitable for high-density installation.

Performance characteristics

Due to the different form of structure, the frequency range, voltage VSWR and insertion loss of various SMA RF Coaxial Connector are also different, and are specified in the respective applicable standards. For example, in the current effective GJB680 / 2, GJB680 / 28, GJB680 / 31 in the provisions of the SMA RF Coaxial Connector adapter frequency range, voltage standing wave ratio (VSWR), insertion loss is different.


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