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MMCX



MMCX (micro-miniature coaxial) connectors are coaxial RF connectors similar to MCX but smaller. They conform to the European CECC 22 000 specification. The connectors have a lock-snap mechanism allowing 360-degree rotation and usually have a 50 Ω impedance. They offer broadband capability from DC to 6 GHz.[1]


MMCX connectors are most commonly seen on Wi-Fi PCMCIA cards as antenna connectors or as connectors for external GPS antennas on small devices like PDAs or GPS receivers. They were developed in the 1990s.

Electrical:

Electrical DataDetail
Impedance50 ohms
Frequency range0 to 6GHz
Working Voltage170 Vrms max.
Dielectric withstanding voltage500 Volts rms min.
VSWR
  • Straight connector :1.30 max.
  • R/A connector: 1.5 max.

Mechanical:

Mechanical DataDetail
Engagement force3.4 lbs max.
Disengagement force1.4 lbs~3.4 lbs
MatingLock-Snap coupling
Connector durablity500 matings
Cable retention force
  • RG178=7.3 lbs min.
  • RG174=9.7 lbs min.
  • RG316=12.1 lbs min.