OEMCH-SMAJ4

SMA-J4 straight SMA plug for LMR240 / RF240 coaxial cable, 50 Ohm up to 12.4GHz, suitable for RF applications, antennas, telecommunication installations, wireless systems, test equipment and microwave cabling.

The SMA-J4 is a straight SMA cable plug for flexible coaxial cable type LMR240 / RF240. It features 50 Ohm characteristic impedance and a maximum operating frequency of 12.4GHz, making it suitable for reliable RF connections where stable electrical performance and proper impedance matching are required.

Technical description

The SMA-J4 connector follows the MIL-C-39012 interface standard and provides a maximum VSWR of 1.06+0.03xf(GHz). It has a voltage rating of 500V rms and a test voltage of 1000V rms. The center contact is made of brass with gold plating, while the body and coupling nut are also made of gold-plated brass. The insulator is PTFE, providing stable electrical and RF performance.

Typical applications

Suitable for LMR240 / RF240 antenna cables, WiFi antenna installations, RF cabling, transceivers, test equipment, telecommunication interconnections, laboratory applications, wireless systems and installations requiring a 50 Ohm SMA connector for flexible coaxial cable.

Compatibility note

The SMA-J4 is an SMA plug for LMR240 / RF240 cable and is not intended for direct PCB mounting. Before installation, verify the cable diameter, termination type, correct coaxial cable preparation and mechanical compatibility with the corresponding SMA jack or adapter. It should not be used with cables of a different diameter without checking connector compatibility.

Weight: approximately 0.0045 kg.

Frequently asked questions

Which coaxial cable is the SMA-J4 designed for?
The SMA-J4 is designed for flexible LMR240 / RF240 coaxial cable. For other cable types, mechanical dimensions and connector compatibility must be verified.

What is the maximum operating frequency?
The specified maximum operating frequency is 12.4GHz with a characteristic impedance of 50 Ohm.

Can it be used with RG58 or LMR400 cable?
Not as a direct replacement. RG58 and LMR400 have different cable dimensions and require a connector designed for the corresponding cable type.