The MMCX (Micro-Miniature Coaxial) connector series is a micro-miniature version of the MCX. It has the all features of the MCX series, including 50 Ω impedance with a broadband capability of DC to 6 GHz and secure, fast and easy snap-on/ snap-off coupling, and a wide range of available connectors. However, MMCX connectors have a smaller foot print than the MCX series.

Like the MCX, the MMCX series conforms to the European CECC 22000 specification.

A range of connectors are available, including surface mount, edge card, and cable connectors.

Related Products

MMCX Adapters
MMCX Cable Assemblies

Features and Benefits

  • Broadband performance with low reflection DC to 6 GHz, providing a high-quality solution at a low cost
  • Quick connect/disconnect snap-on mating reduces installation time
  • Conforms to European CECC 22000 specifications
  • Available in straight and right angle plugs and printed circuit board connectors


  • Antennas
  • Instrumentation
  • Satcom
  • Base Stations
  • Telecom
  • Broadband
  • GPS

MMCX Specifications

Impedance 50 Ohm
Frequency Range DC to 6 GHz
  DC to 4GHz 1.25 Max
  4GHz to 6GHz 1.40 Max
Dielectric Withstanding Voltage (Sea Level) 500 VRMS, 50Hz
Working Voltage (Sea Level) 170 VRMS, 50 Hz
Insulation Resistance 500 M
Contact Resistance  
  Center Conductor ≤10 mΩ
  Outer Conductor ≤5 mΩ
Temperature Range -40⁰C to 90⁰C
Temperature Shock Mil-STD-202, Method 107
Humidity Mil-STD-202, Method 103, Condition B
Vibration 3 Cycles, 3 opposite directions, 10-150 Hz, 10-60 Hz, 0.75mm/0.030 in., 60-150 Hz 10G's 
Mechanical Shock Mil-STD-202, Method 213, Condition B
Engagement Force < 30 Newtons
Disengagement Force

> 8 Newtons @ 1 - 5 Mating Cycles

>4 Newtons @ 100 - 500 Mating Cycles

Contact Captivation 2.3 lbs.
Durability (Machined) ≥500 cycles
 These characteristics are typical and may not apply to all connectors.

Interface Dimensions