High Temperature Beryllium Nickel Contacts

Mill-Max now offers nine contacts made from Beryllium Nickel Alloy 360 (UNS N03360.) Contacts made from Beryllium Nickel are recommended for receptacle applications where the Operating Temperature exceeds 150°C.

Some common applications for these contacts are found in: the oil industry for down-hole wells and exploration; “Test & Burn-in” sockets for stress testing electronic devices (i.e. chips); high temperature commercial lighting fixtures (e.g. Halogen lamps) and Autoclave sterilization for the medical industry.

Where these contacts are needed

BeNi is suitable for continuous use up to 250°C, and periodic use up to 350°C, without significant loss of its spring properties. For use below 150°C, Mill-Max has an extensive range of 29 standard Beryllium Copper Alloy 172 spring contacts.

Beryllium Nickel Alloy 360. Contacts are made from Beryllium Nickel Alloy 360 (UNS N03360) and are recommended where the Operating Temperature exceeds 150°C.
Spring properties retained at temperature. Suitable for continuous use up to 250°C, and periodic use up to 350°C, without significant loss of its spring properties.
Nine accepting pin ranges. The range spans .015” to .082” (0,381mm to 2,083mm), and each high temperature contact is interchangeable with a standard contact clip.
Assembled into standard hardware. These nine contacts are available assembled in a wide range of standard precision machined receptacles (discrete sockets for printed circuit boards) and various types of socket assemblies (DIP, SIP etc.)
Proven high reliability applications. Down-hole oil exploration, Test and Burn-in sockets, high temperature lighting fixtures and Autoclave sterilization.

Specifications

Specification	Value
Contact material	Beryllium Nickel Alloy 360 (UNS N03360)
Recommended above	Operating Temperature exceeding 150°C
Continuous use	Up to 250°C
Periodic use	Up to 350°C, without significant loss of spring properties
Accepting pin range, full series	.015” to .082” (0,381mm to 2,083mm)
Number of contacts in series	Nine
Below 150°C alternative	29 standard Beryllium Copper Alloy 172 spring contacts

Contact selection

The table below shows the accepting lead diameter range for each contact and which standard contact clip it can be interchanged with.

High Temp Contact #	Accepting Pin Range	Interchangeable with Standard Contact #
25	.015”-.020” (0,381mm - 0,508mm)	11
38	.015”-.025” (0,381mm - 0,635mm)	30
19	.020”-.032” (0,508mm - 0,813mm)	15
26	.022”-.032” (0,559mm - 0,813mm)	06
56	.025”-.037” (0,635mm - 0,940mm)	47
24	.032”-.047” (0,813mm - 1,194mm)	34
58	.037”-.043” (0,940mm - 1,092mm)	18
33	.048”-.064” (1,219mm - 1,626mm)	13
27	.065”-.082” (1,651mm - 2,083mm)	07

These contacts are the internal spring member of the highly reliable, two piece Mill-Max receptacle and are not sold as individual items.

Find a receptacle

These nine contacts are available assembled in a wide range of standard precision machined receptacles (discrete sockets for printed circuit boards) and various types of socket assemblies (DIP, SIP etc.) Use the Mill-Max product finder to browse the receptacle families by shell style, mounting and termination, then contact Technical Services to specify a high temperature Beryllium Nickel contact in the receptacle you select.

Product FinderPin ReceptaclesCustom CapabilitiesTechnical Services

On the product finder, choose Pin Receptacles under Search by Product Family to browse by shell style and termination, or use the Part Number tab to enter a full or partial Mill-Max part number.

Need technical help or a custom design?

Use the form below to contact Mill-Max Technical Services.

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Published Date

October 1st, 2011

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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.

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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.

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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.