MCX Series



Table of contents

  MCX miniature connectors are based on the CECC 22220 standard.
  They are designed for 50 Ohm systems with working frequency up to 6GHz.
  The snap-on mating design offers the user smaller size compared to SMB series (30% space reduction).
  MCX connectors are suitable where space, and weight performance are required.
  The major application of MCX series connectors are GPS, wireless communication & test devices.

Plug interface

Jack interface

Click to see dimensions

Click to see dimensions



Brass, gold or nickel plated

Center contact

Brass (male)/BeCu (female), gold plated



Crimp ferrule

Annealed copper, gold or nickel plated



50 Ohm

Frequency range

0 to 6 GHz

Working voltage

RG178, 196 = 250V rms @sea level max
RG174, 188, 316 = 335V rms @sea level max

Insulation resistance

1000 MOhm min

Dielectric withstanding voltage

RG178, 196 = 750V rms min
RG174, 188, 316 = 1000V rms min

Contact resistance

Center contact: 5.0 mOhm max
Outer contact: 1.0 mOhm max


Straight connector:
RG178, 196 = 1.07+0.06F (F in GHz)
RG174, 188, 316 = 1.07+0.04F (F in GHz)
Right angle connector:
RG178, 196 = 1.17+0.06F (F in GHz)
RG174, 188, 316 = 1.13+0.04F F in GHz)


Engagement force

5.6 lbs max

Disengagement force

1.8 ~ 4.5 lbs

Connector durability

500 matings

Cable retention force

RG178 = 7.3 lbs min
RG316 = 12.1 lbs min


Corrosion (Salt spray)

MIL-STD-202F, Method 101D, Condition A

Thermal shock

MIL-STD-202F, Method 1017G, Condition A


MIL-STD-202F, Method 204D, Condition A

Mechanical shock

MIL-STD-202F, Method 213B, Condition A

Alpha Center
351 Irving Drive, Oxnard, CA 93030, USA

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