• Latest
  • Trending

Contact Spring Requirements

September 8, 2022

Microwave Multi Line Connectors Mounting and Handling Precautions

March 27, 2023

Samtec New Interconnects Enhances Power and Signal Integrity

March 21, 2023
PCNS Passive Components Symposium 11-14th September 2023

PCB Via Design Selection; Plugging-Filling-Tenting

March 20, 2023

Lemo Releases New Multi Coaxial High Frequency Connector

March 2, 2023

Würth Elektronik Introduces Crimp SKEDD Connectors

March 1, 2023

binder Offers Sensor Connectors in Stainless-Steel to Protect Against Corrosion

March 1, 2023

Board-to-Board Connection & Antennas HF Connection

February 20, 2023

How to Ensure Board-to-Board Connectors Meet High-Speed Automotive Assembly and Use Requirements

February 16, 2023

Amphenol Enhanced its ePower-Lite EV Line to Include 3-Pole Connector

February 15, 2023

BASIC PCB Design Rules – Layout

February 15, 2023

Connector Inrush Current Explained

February 3, 2023

M8 Connectors for Smart Farming Applications

January 31, 2023
  • Privacy Policy
inter-connection blog
  • NEWS
  • Knowledge base
  • Sister Sites
    • Passive Components Blog
    • PCNS Symposium
    • The Passives Times
    • EPCI Home
  • About
No Result
View All Result
  • NEWS
  • Knowledge base
  • Sister Sites
    • Passive Components Blog
    • PCNS Symposium
    • The Passives Times
    • EPCI Home
  • About
No Result
View All Result
inter-connection blog
No Result
View All Result

Contact Spring Requirements

September 8, 2022
A A

As discussed in Chapter I/1.2.2 Contact Springs, the three basic requirements for the contact spring are:

• Electrical conductivity
• Creating the contact normal force
• Formability sufficient for both separable and permanent connections

Consider each requirement separately.

Electrical Conductivity
The contact spring material must have a high electrical conductivity. In general this means metallic conductivity. The conductivity of a contact spring depends on the intrinsic conductivity of the spring material and the geometry of the contact spring. The conductivity requirement is most demanding in power applications where Joule, I2 R, heating can limit the range of application of a connector.

Contact Force
The contact force is created by deflection of the contact springs, usually the receptacle contact spring, during mating of the connector. Material parameters that are important in generating the contact force include the elastic modulus, and the yield strength of the spring material. Examples of this dependence will be provided later in this chapter.

Formability
Formability is important for both separable and permanent connections. First, it is necessary to enable the various bending operations required to create the overall geometry of the separable connection portion of the contact spring. These geometries range from simple cantilever beams to complex curvatures to meet different application requirements. Second, it is necessary to support the large deformations and deflections needed for crimped connections as well as for insulation displacement connection geometries

Fig. 2.18: Formability

As mentioned in Chapter I/1.2.2 Contact Springs, these contact spring material requirements are best met by copper alloys. Copper itself excels in conductivity, but it does not have the balance of strength and formability to meet the required contact spring manufacturing and performance requirements. Thus, a range of copper alloys are used with the choice of alloy being dependent on the connector design and the performance requirements that must be met. For example, for springs requiring complex forming the balance between yield strength and formability may be dominant while in power applications electrical conductivity may drive the material selection process.

Related

Source: Wurth elektronik
Next Post

Separable Connections and Contact Force Optimization

Contact Force and Mating Wear/Durability

Contact Force and Mating Mechanics

Popular Posts

  • Crimped Connections

    0 shares
    Share 0 Tweet 0
  • Basic Principles of Connectors

    0 shares
    Share 0 Tweet 0
  • Space Saving Molex Connector in AR/VR System designs

    0 shares
    Share 0 Tweet 0
  • THR (Through Hole Reflow) Technology: Introduction & History:

    0 shares
    Share 0 Tweet 0
  • The Electrical Interface: Contact Resistance

    0 shares
    Share 0 Tweet 0

Archive

2023
2022

  • About
  • Inter-Connection News
  • Knowledge base
  • NEWS
  • Privacy Policy
  • Sister Sites

© 2023 EPCI - Premium Passive Components & Inter-Connect News

No Result
View All Result
  • About
  • Inter-Connection News
  • Knowledge base
    • Applications
    • Basic Principles of Connectors
    • Design Selection Assembly
  • NEWS
  • Privacy Policy
  • Sister Sites

© 2023 EPCI - Premium Passive Components & Inter-Connect News

This website uses cookies. By continuing to use this website you are giving consent to cookies being used. Visit our Privacy and Cookie Policy.