QA Technology probes are available in a wide range of spring forces
allowing the Test Engineer or Fixture Fabricator to custom-tune
test probe applications.
Spring design is a critical factor in probe life, internal resistance and
contact integrity. QA springs are force and cycle tested to insure
consistent performance and reliability.
Low force springs are typically used in highly populated sections
of vacuum fixtures for proper pull down. Standard force springs are ideal
for most vacuum and mechanical fixtures. High force springs are useful in
penetrating contaminated contact surfaces in low-density areas. Elevated,
Extra and Ultra force springs are used in cases of extreme contamination
or heavy flux residues.
Increased available space for the spring in our patented probes allows QA
to offer the only .100 [2.54] centers, .250 [6.35] stroke probe that can be
used at full stroke without risk of fatigue failure. This extra space also
allows us to offer a .400 [10.16] stroke probe to fit in the same
sockets/termination pins as their .250 [6.35] stroke counterparts.
For ease of selection and to help identify the proper replacement probe,
the probe tubes on our 075-25, 100-12, 100-15, 100-16,
100-24, 100-25, 100-40 and 125-PRH25 series probes as well as our
X50-25, X50-40, X75-25 and X75-40 socketless series are marked with
spring force designations on their outer surface.