Spring Finger Contact

A Spring Finger Contact is a compact, surface-mount component designed to provide reliable electrical connections and grounding in electronic assemblies. These contacts are essential for minimizing electromagnetic interference (EMI) and ensuring signal integrity, especially in environments subject to vibration and mechanical stress.

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Solution

Spring Finger Contacts, also known as shield fingers or grounding springs, are single-contact, surface-mountable internal connectors designed for multiple functions on a PCB. They are widely used across various industries for antenna feeds, low-voltage electrical connections, and grounding or shielding purposes.

Key Features

Compact Design: Available in heights ranging from 0.4mm to 7mm, accommodating space-constrained applications.

High Durability: Capable of withstanding over 50,000 compression cycles, ensuring long-term reliability.

Material Composition: Typically made from beryllium copper (CuBe) for excellent mechanical and electrical properties, with optional nickel or gold plating for enhanced conductivity and corrosion resistance.

EMI Shielding: Effectively prevents electromagnetic interference (EMI) and static caused by vibrating components like speakers, motors, and microphones.

Ease of Assembly: Designed for automated surface-mount technology (SMT) processes, supplied in tape-and-reel packaging.

Applications

Consumer Electronics: Smartphones, tablets, wearable devices, and game consoles.

Automotive Systems: Dashboard electronics, infotainment systems, and lighting controls.

Medical Devices: Patient monitoring equipment and diagnostic tools.

Industrial Equipment: Control systems, sensors, and machinery requiring reliable grounding and EMI protection.

Customization Options

Dimensions: Tailored to specific height, width, and footprint requirements.

Material and Plating: Options include different base materials and surface treatments to meet environmental and electrical needs.

Compression Force: Customized to achieve desired contact force and mechanical performance.

Packaging: Available in various reel sizes to suit production volumes and assembly methods.

Technical Support and Resources

Design Guidelines: Comprehensive datasheets and application notes to assist in product selection and PCB layout.

Sample Provision: Availability of samples for prototyping and testing purposes.

Engineering Assistance: Expert support for custom designs and application-specific requirements.