LMF-Low Mating Force Rectangular M55302

Amphenol Aerospace
Part Number Information
Part #: Price/Availability:
M55302 Low Mating Force Buy Now

The B3 Brush Contact is the standard contact for the family of connectors called Low Mating Force Rectangulars. This is because of the Brush contact’s advantages for low mating force, stable electrical performance and extended service life. Amphenol provides a wide variety of interconnects within the “Brush Family of Connectors”. This catalog section first gives the information you need for ordering the standard body styles, as described on pages 61 & 63, and then follows with information about further design flexibility. Below are some of the interconnect product solutions possible in Amphenol’s rectangular products.


  • 0.100 inch center to center, square grid contact spacing 
  • Application flexibility (parallel boards, perpendicular boards, wire to board, end to end boards, card extenders) 
  • 2, 3 and 4 row contact arrangements with 10 to 100 contacts per row in one contact per row increments 
  • Military versions meet MIL-DTL-55302/166 through /172 
  • Termination versatility; straight & 90° PCB stud, wire wrap & crimp 
  • Options on termination lengths and plating 
  • Front release/front removable contacts in Mother Board, Daughter Board and PC version; rear release/rear removable crimp contacts (size 22D) or printed circuit
  • board pins provided with Input/output connectors 
  • Accessories available for latching and polarization 
  • Up to 256 keyed, mating polarizations available 
  • Hybrids available – mix signal with power, RF or fiber optics 
  • Smaller sized connector designs with as few as 5 contacts per row 
  • RoHS compliant versions are available; consult an Amphenol Representative for more information


  • Medical Equipment 
  • IC Chip Testers 
  • Telecommunications 
  • Military & Commercial Avionics 
  • Military Ground Vehicles 
  • GPS Systems 
  • Harsh Environments