1903646-1 Datasheet, PDF (1/6 Pages) Tyco Electronics – Spring Fingers

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 o ers a wide selection of spring fingers in varying styles and sizes depending on the type of
application.
FEATURES
• 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 e ective heights of
0.5mm - 3.4mm
• Requires limited space on a
PCB
• Accommodates soldering and
pick-and-place using standard
equipment
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
APPLICATIONS
• Cell phones, smart phones
• MP3 players
• Digital cameras, camcorders
• GPS units
• eReaders
• Tablets
• PCs and laptops
• Home electronic devices
• Automotive
• Industrial equipment
te.com/products/Spring-Fingers