What are the main types of coaxial connectors?

Last Update Time: 2019-07-20 10:54:08

The coaxial connector is used to transmit RF signals, and its transmission frequency is very wide, up to 18 GHz or higher, mainly used for radar. Communication, data transmission and aviation air equipment. The basic structure of the coaxial connector includes: a center conductor (a positive or negative center contact); a dielectric material outside the inner conductor, or an insulator, and the outermost is an outer contact, which serves as a shield outside the coaxial cable. The same function of the layer, that is, the signal transmission, the grounding element as a shield or circuit.

 

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The coaxial connectors are mainly divided into: SMA, SMB, BNC, TNC, SMC, N-type, BMA, and the like.

Male: plug, thread inside, inside is the needle. Such as TNC (M).

Female: socket, threaded outside, inside is a hole. Such as SMA (F). 

RP: Reverse

Polarity means that the head and the inside of the needle are opposite.

Bulkhead: The connector that locks the screw on the board contains the washer, the screw and the retaining wall (such as SMA FEMALE BULKHEAD).

PCB: A connector that has feet and can be soldered to the board (eg SMA FEMAL PCN).

Panel: There are screw holes. The connectors that can be screwed onto the board (such as SMA PANEL MOUNT) usually have 4 holes and 2 holes.

 

1, SMA

The SMA series connector is a widely used small-threaded coaxial connector with excellent life performance and high reliability. It is widely used in microwave equipment and digital communication equipment RF back coaxial cable assemblies or microstrips.

It is commonly used on wireless devices for the GPS clock interface on the board and the base station RF module.

 

SMA(R)-A-PP

 

 

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