Miniature Receptacles for Diverse Applications


For applications requiring miniature receptacles, Mill-Max offers four diverse, off-the-shelf products which will fulfill those needs. These receptacles are suitable for use in high density configurations down to 1 mm pitch.

Each receptacle contains our three-finger, beryllium copper contact with a diameter range of 0.008 (0,2 mm) to 0.013” (0,33 mm). The contact is characterized by a low insertion force making it compatible with miniature leads subject to bending.

The receptacle shells are made from brass alloy and, like all Mill-Max pins, are high-speed machined to precision tolerances. The inner contact is press-fit into the receptacle shell forming a gas-tight connection. It is precision stamped from beryllium copper strip and heat-treated to provide excellent spring and electrical properties. All four receptacles have a current rating of 2 amps. Both the receptacle shells and contacts are gold-plated providing the highest interconnect reliability, corrosion protection and wear resistance.

For over 40 years, Mill-Max has been manufacturing and designing high-reliability, precision-machined interconnect components and is a recognized global leader in both industry standard and application specific interconnects. Mill-Max specializes in custom, application-specific interconnect solutions and also maintains the largest inventory of stock interconnects in North America. Their US-based manufacturing operation is housed entirely in a single location in Oyster Bay, NY, and is focused on ensuring maximum reliability, service and convenience.
For more information, contact Robin D. Ritter, Marketing Coordinator, Mill-Max Mfg. Corp.; 516-922-6000 ext. 211;;; PR666, 6/2016



  • 0439-0-15-15-04-27-04-0:
    • Tail diameter: 0.014” (.356 mm)
    • Above board height: 0.090” (2.286 mm)


  • 8210-0-15-15-04-27-04-0:
    • Tail diameter: .012” (.305 mm)
    • Above board height: 0.100" (2.54 mm)


  • 4428-0-43-15-04-14-10-0:
    • Low profile, solder mount, open bottom receptacle fitted with Mill-Max’s Organic Fibre Plug
    • Available in bulk or on tape & reel for automatic assembly. 


  • 9928-0-15-15-04-27-40-0:
    • SMT receptacle mainly used for 1 mm grid socket configurations such as in BGA socket and adapter pairs.
    • Diameter base 0.016” (.406 mm), ideal for 1 mm grid PCB layouts
    • Height: 0.090” (2.286 mm), helps to keep overall packaging profiles to a minimum.


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