Micro RF Coaxial Connectors Models and Application Environments

I. Micro RF Coaxial Connectors standard type: contains the N series, C series.

(1) N series use thread butt interchangeable, there are two versions of 50 and 75 ohms. Working frequency 0 ~ 11GHz, can be mated with 3 ~ 12mm soft, semi-soft and semi-rigid cable, precision type N head is even applied to 18GHz environment, typical application scenarios are local area networks, test equipment, satellite, etc.

(2) C series is successfully developed by concel, it adopts internal bayonet connection, internal nominal size, working frequency, etc. is the same as N series, but not as common as N series.


Second, Micro RF Coaxial Connectors small: contains the BNC series, TNC series.

(1) BNC series, its operating frequency 0 ~ 4GHz, the biggest feature is the convenience of connection, generally through the connection ferrule rotation of less than a turn can be connected. It is suitable for frequent connection and separation occasions, and is a common product at present, especially in the field of instrumentation, network and computer widely used.

(2) TNC series, is the threaded deformation of BNC, also known as threaded BNC, its operating frequency reaches 11GHz, good vibration resistance.

Third, Micro RF Coaxial Connectors ultra-small: contains SMA, SMB, SMC, MCX, BMA, SAA series.

(1) SMA series, working frequency 0~18GHz.

(2) SMB series, push-in connectors with stops, small size, easy plugging and unplugging, good vibration resistance, small space occupation, widely used in communication equipment, instrumentation and navigation systems with operating frequencies from 0 to 4GHz.

(3) SMC series, is the threaded deformation of SMB, its internal structure size is the same as SMB, working frequency 0~11GHz, usually used in radar, navigation, etc.

(4) MCX series, its basic function is similar to SMB, but the volume is 1/3 smaller than SMB.

(5) BMA series, also known as blind plug connector, its fixed socket in the axial and radial have a certain amount of floating, can realize the block type, modular whole system, fast blind plug replacement, working frequency 0 ~ 22GHz. internal nominal size and mating cable and SMA the same.

(6) SAA series, is a push-in self-locking connector, currently in the programmable switch, optical terminals and other communication systems are widely used.

Fourth, Micro RF Coaxial Connectors miniature: contains the SSMA, SSMB, MMCX series.

(1) SSMA series, structural features similar to SMA, but smaller, working frequency up to 40GHz, is the current common standard millimeter wave connector.

(2)SSMB series, structure characteristics similar to SMB, smaller size.

(3) MMCX series, a new type of push-in connector, is also the smallest type of connector in current applications.

Because there are many models, so we also need to pay attention to when choosing Micro RF Coaxial Connectors.

1, according to the use of requirements to determine the connector form factor, and determine the cable termination side.

2, according to the use of the requirements to select the characteristic impedance, operating frequency to meet the requirements of RF coaxial connectors.

3, according to the size of the transmission power, insertion loss, shielding requirements, select the appropriate Micro RF Coaxial Connectors and the appropriate cable.

4、To determine the connection mode of RF Coaxial Connectors in combination with the size of the use space, the frequency of plugging and unplugging and the use environment.

5、According to the use of space to determine the fixed mode (flange, nut, welding).