About the BMMA Interface

The BMMA series is a smaller version of BMA connector. At 40% smaller in line size than the BMA, the BMMA allows for greater packaging density in applications up to 28 GHz. This connector series is used in rack and panel applications where alignment of the connectors is not easily accessible. The spring fingers in the jack help to center the plug to its proper mating condition. Float mount styles allow for continued interface mating in the high vibration environments associated in military/aerospace applications. The BMMA series are often used in hybrid connector applications with a Mil-C-38999 or D-sub style shell.


BMMAtechnical diagram

click to enlarge



Nominal Impedence50 ohms ohms
Frequency RangeDC to 28 GHz
Voltage Rating335 volts rms
Dielectric Withstanding
675 volts rms


Mating Characteristicsper TRU standards
Connector Durability500 cycles min.
Recommended TorqueN/A (Push-on Blind-mate)


BodyBrass, Silver or Nickel Plated. Stainless Steel, Passivate
Contacts (Inner)Female: Beryllium Copper, Silver or Gold Plated. Male: Brass, Silver or Gold Plated
Contacts (Outer)Brass, Silver or Nickel Plated
Contacts (Slotted)Beryllium Copper, Silver or Nickel Plated
Gaskets & SealsSilicone Rubber


Tempurature Range-85°F to +257°F (-65°C to +125°C)
VibrationMIL-STD-202 Method 204
ShockMethod 213
Moisture ResistanceMIL-STD-202 Method 106
Corrosion (salt spray)MIL-STD-202 Method 101

Download as Printable PDF

BMMA Performance Charts