Mill-Max Expands Its Organic Fibre Plug® Pin Receptacle Lineup

Mill-Max Organic Fibre Plug® open-bottom pin receptacles.

Mill-Max announces versatile additions to our organic fibre plug (OFP®) receptacle line, covering a wide range of lead sizes and offering 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 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 in that they are open bottom receptacles, meaning leads can pass through them, while the vital contact area is protected by the organic fibre plug during the assembly process and 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 & reel packaging, they can be added to surface mount PCBs at the same time as the SMT components. The tape & reel packaging is essential for high volume production and the minimal length of these parts make them a perfect fit for compact packaging requirements.

Mill-Max is introducing four new OFP® receptacles, three of which are characterized by having early engagement, 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, .025” - .037” (0,635 - 0,94 mm), low force contact. All are available in bulk or tape & reel packaging. The standard plating option has a matte tin finish on the shell and 30 micro inches gold plating on the contact.

Protected contact. The organic fibre plug keeps solder and flux out of the contact area during assembly and reflow, then is knocked out when the lead is plugged in.
Open bottom. Leads pass through for board stacking and long-leaded devices without trimming.
Early engagement, dual entry. Three of the four new parts accept short pins and leads from either side of the board.
Built for volume. Tape & reel packaging places them with the SMT components; bulk packaging is also available.

Specifications

Series	0369	0374	0380	4280
Pin acceptance range	.018”-.023” (0,457-0,584mm)	.059”-.063” (1,499-1,600mm)	.037”-.043” (0,940-1,092mm)	.025”-.037” (0,635-0,940mm)
Early engagement / dual entry	Yes	Yes	Yes	No
Contact	4-finger	4-finger power	4-finger power	6-finger
Max current*	13A (10.40A derated)	24A (19.20A derated)	25A (20.00A derated)	15A (12.00A derated)
Mounting hole	.047” (1,194mm)	.102” (2,591mm)	.075” (1,905mm)	.067” (1,702mm)
Overall length	.078” (1,981mm)	.165” (4,191mm)	.107” (2,718mm)	.100” (2,540mm)
Body diameter	.043” (1,092mm)	.098” (2,489mm)	.071” (1,803mm)	.056” (1,422mm)
Flange diameter	.061” (1,549mm)	.116” (2,946mm)	.089” (2,261mm)	.078” (1,981mm)

* Current ratings are per contact at 30°C temperature rise; derated values are 20% lower. All four series: beryllium copper contact with 30µ” gold over nickel, brass shell, 10mΩ max contact resistance, 1,000 cycles minimum, -55°C to +125°C operating temperature.

Part numbers

Each series comes in bulk (packaging code 43) and tape & reel (packaging code 67). Parts normally stocked at our Authorized Distributors are listed first.

Part Number	Description	Resources
● 0369-0-67-80-31-27-10-0	Accepts .018”-.023” (0,457-0,584mm) leads. Tape & reel, 3,300 per reel.	DatasheetOrder SampleCheck Stock
● 0374-0-67-80-42-27-10-0	Accepts .059”-.063” (1,499-1,600mm) leads. Tape & reel, 1,600 per reel.	DatasheetOrder SampleCheck Stock
● 0380-0-67-80-48-27-10-0	Accepts .037”-.043” (0,940-1,092mm) leads. Tape & reel, 2,800 per reel.	DatasheetOrder SampleCheck Stock
0369-0-43-80-31-27-10-0	Accepts .018”-.023” (0,457-0,584mm) leads. Bulk packaging.	DatasheetOrder SampleCheck Stock
0374-0-43-80-42-27-10-0	Accepts .059”-.063” (1,499-1,600mm) leads. Bulk packaging.	DatasheetOrder SampleCheck Stock
0380-0-43-80-48-27-10-0	Accepts .037”-.043” (0,940-1,092mm) leads. Bulk packaging.	DatasheetOrder SampleCheck Stock
4280-0-43-80-47-27-10-0	Accepts .025”-.037” (0,635-0,940mm) leads. Bulk packaging.	DatasheetOrder SampleCheck Stock
4280-0-67-80-47-27-10-0	Accepts .025”-.037” (0,635-0,940mm) leads. Tape & reel.	DatasheetOrder SampleCheck Stock

^●^{Normally stocked at our Authorized Distributors.}

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Published Date

August 20th, 2024

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As a product design engineer, you know that connectors play a critical role in the electrical system of any product you design. It is not the place to take shortcuts, and a good connector can help avoid costly repairs and recalls down the road.

When you design your next product consider the Mill-Max receptacle first. The quality and reliability of our two-piece construction delivers maximum performance and durability in every application, including challenging or rugged environments.

Our receptacles are precision-machined for ultimate reliability of critical components across a wide variety of industries; including aerospace, military, medical, just about anywhere product failure is not an option.

The Mill-Max two-piece receptacle design allows for the widest mating pin acceptance range, the largest variety of shapes, sizes and materials, and multiple contact points to ensure a dependable connection every time.

Pin receptacles are typically the backbone of any interconnect system. So, why settle for anything less than the maximum in performance, reliability, and flexibility. The predictable quality of a Mill-Max interconnect can play a fundamental role in determining your products performance.

With almost 45 years of experience working with suppliers all over the world, consider specifying Mill-Max receptacles into your design, sooner rather than later, and ensure the optimal solution for the unique requirements of your application.