Organic Fibre Plug® Receptacles

Mill-Max OFP receptacles cover a wide range of lead sizes and offer early engagement/dual entry capability. The OFP prevents contamination of the critical contact area during assembly and reflow soldering of the receptacle onto the printed circuit board (PCB) while providing a high reliability and compact connection.

Receptacles are widely used in electronic assemblies to make pluggable connections on circuit boards. They are available in a variety of styles to suit almost any situation. OFP receptacles are unique because they are open-bottom receptacles, meaning leads can pass through them. At the same time, the OFP protects the vital contact area during the assembly process and is then knocked out when the lead is plugged in.

They are ideal in interconnect scenarios such as board stacking, where a long header pin can connect multiple boards through the open bottom OFP receptacles using long leaded devices without trimming. And, thanks to tape-and-reel packaging, they can be added to surface-mount PCBs at the same time as the SMT components.

Mill-Max is introducing four OFP receptacles, three of which are characterized by having early engagement and dual entry internal contacts. These receptacles are an excellent choice for mating with short pins to create low-profile assemblies or for situations in which a component must be assembled from the bottom side of the board, utilizing the dual entry feature of the contact. The fourth receptacle employs a wide pin acceptance range, 0.025” to 0.037” (0.635 mm to 0.94 mm), low-force contact. The standard plating option has a matte tin finish on the shell and 30 microinches of gold plating on the contact.