Parameter index of coaxial cable assemblies

Main electrical parameters

(1) Characteristic impedance of coaxial cable assemblies The average characteristic impedance of coaxial cable assemblies is 50±2Ω, the periodic change of impedance along a single coaxial cable assemblies is a sine wave, the average value of the center is ±3Ω, and its length is less than 2 meters.

(2) The attenuation of coaxial cable assemblies generally refers to the attenuation value of a 500-meter-long cable segment. When measured with a 10MHz sine wave, its value does not exceed 8.5db (17db/km); and when measured with a 5MHz sine wave, its value does not exceed 6.0db (12db/km).

(3) The minimum propagation speed required for the propagation speed of coaxial cable assemblies is 0.77C (C is the speed of light).

(4) Coaxial cable assemblies DC loop resistance The sum of the resistance of the central conductor of the cable and the resistance of the shielding layer shall not exceed 10 milliohms/meter (measured at 20°C).

physical parameters

The coaxial cable assemblies is composed of a central conductor, an insulating material layer, a shielding layer composed of a mesh fabric, and an outer insulating material layer.

Coaxial cable assemblies is flexible enough to support a bend radius of 254mm (10 inches).

The center conductor is a solid copper wire with a diameter of 2.17mm ± 0.013mm.

The insulating material must meet the electrical parameters of the coaxial cable assemblies.

The shielding layer is composed of metal strips or sheets that meet the transmission impedance and ECM specifications. The inner diameter of the shielding layer is 6.15mm and the outer diameter is 8.28mm. External insulation materials are generally made of polyvinyl chloride (such as PVC) or similar materials.

The main parameters of the test

(1) Open circuit condition of conductor or shield.

(2) Short circuit between conductor and shield.

(3) Grounding of conductors.

(4) Short circuit between shield connectors.

ZOMWAVE has a complete system of R&D, manufacturing, production and sales of Coaxial Cable Assemblies uch as partial market, hard-to-find and scarce connectors, and providing you with one-stop service.