RG-400/U Coaxial Cable 7 ft SMA Male to Female 4.9mm 50 Ohm RF

RG-400/U Coaxial Cable 7 ft SMA Male to Female 4.9mm 50 Ohm RF

This is a 7-foot RG-400/U double-shielded 50-ohm coaxial cable assembly terminated with an SMA male connector on one end and an SMA female connector on the other. RG-400/U is a military-specification coaxial cable built to MIL-C-17 standards, using a silver-plated copper double-braid shield over a PTFE (Teflon) dielectric, making it more flexible and lower-loss than standard RG-58 while withstanding wide temperature swings. The cable jacket measures 4.9 mm (0.194 in) in outer diameter. Both ends are color-coded with green and red bands for easy end identification in a rack or bench setup.

Specifications & What's Included

• Cable type: RG-400/U (MIL-C-17)
• Length: approximately 7 feet (~2.1 m)
• Outer diameter: 4.9 mm (0.194 in)
• Impedance: 50 ohm
• Connector A: SMA Male (SMA-M)
• Connector B: SMA Female (SMA-F)
• Shielding: double-shielded, silver-plated copper braid
• Dielectric: PTFE (Teflon)
• Color-coded end bands: green and red on each connector boot
• Includes: cable assembly only — no additional accessories

Applications

RG-400/U is a standard interconnect cable in RF test and measurement environments, commonly used to connect signal generators, spectrum analyzers, network analyzers, power meters, and other lab instruments with SMA ports. Its double-shielded PTFE construction makes it well suited for microwave frequencies up to 18 GHz and for use in both benchtop lab settings and field-deployed military or aerospace RF systems. SMA-terminated assemblies like this are also widely used in antenna test setups, cellular and satcom ground equipment, radar systems, and anywhere low-loss, flexible coax is needed between SMA-interface devices.