Quick Reference Guide

Spring Fingers

Spring fingers (also known as shield fingers, grounding springs or universal ground contacts) are used in

almost every small printed circuit board application. A spring finger is a single contact, surface mountable,

internal connector. It provides an electrical connection and grounding from EMI noise and static between

a PCB and other electronic components, such as a secondary PCB, shield cam, antenna, or speaker. TE

Connectivity oers a wide selection of spring fingers in varying styles and sizes depending on the type of

application.

APPLICATIONS

Cell phones, smart phones

MP3 players

Digital cameras, camcorders

GPS units

eReaders

Tablets

PCs and laptops

Home electronic devices

Automotive

Industrial equipment

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BENEFITS

Prevents EMI noise and static

Provides a highly reliable

connection

Provides an easy and

inexpensive method for

connecting multiple PCBs

Allows for versatility in

design of the PCB

Can be designed in at the last

minute

No expensive specialized

equipment needed

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Used for grounding between

device and PCB

Provides shielding from

vibration from motors, anten-

nas, speakers and microphones

Used as a connection for

stacking applications between

primary and secondary PCBs

Available in eective heights of

0.5mm - 3.4mm

Requires limited space on a

PCB

Accommodates soldering and

pick-and-place using standard

equipment

FEATURES

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