Double BNC connectors are for low power ,quick connect / disconnect applications using a bayonet type coupling mechanism and can be interchangeable with the same type connectors of aborad. They are widely used connect of the RF coaxial -cables in electronic equipment and instuments. Characteristic impedance 50Ω ,  75Ω 

 

New BNC coupler Double Ended Female Socket Adapter CCTV

Double BNC Female to Female Connector Adaptor

BNC Female to Female Coupler

BNC Female to BNC Female Jack Straight Cable Connector

Double BNC female Connector couplers Adapter For CCTV Video Camera

 

Temperature  range------ -55~+155°C
Impedance------50 Ω  Or  75 Ω 
Frequency range (required for the application is 2,4 GHz)-------0~2 GHz

Voltage rating-----------1500V

Contact resistance of center and outer conductor--------center ≤ 1.5 mΩ outer ≤ 1 mΩ
VSWR---------- Straight ≤ 1.22 , Right angle ≤ 1.30
Durability (in cycles)--------500 cycles
Dielectric withstanding voltage------ ≥ 5000 MΩ