• Insertion characteristics
Insertion and withdrawal force for standard clips are displayed on
the corresponding data sheets. The values are measured with
polished steel gauges with spherical tip and are typical average
measurements. These data are for general information and
selection of best suited clip for a given application.
Each clip is able to accept a broad range of mating pins. This
ability is called «compliancy». The compliancy factor specifies
the resulting operating range after insertion of the largest
permissible mating pin.
• Clip retention
This is the force needed to pull-out the press-fitted clip from its
contact body. Clip retention is greater than 40 N.
• Mechanical life
The mechanical life expectancy is dependent on the surface
smoothness and diameter of the mating pin and on the plating.
For some applications, more than 1000 mating cycles are possible.
• Current rating
The given currents are for one mated combination of socket and
pin contact, in free air and for 10°C temperature rise.
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SOCKET AND PIN CONTACTS
The PRECI-DIP technology for socket contacts is based on a two-parts design:
• Contact body
• Multi-finger contact spring called clip
These socket contacts with clip are compatible with all existing machined
and stamped mating pin contacts of same size
CONTACT BODIES AND CLIPS ARE MANUFACTURED
AND PLATED SEPARATELY
The contact bodies are manufactured by high speed turning process
with additional secondary machining operation if required.
The clip are stamped and formed from sheet material. Depending on
size and characteristics, the clips are designed with 3 to 8 contact
finger. The choice of heat treated beryllium copper alloy gives the
best possible combination of mechanical and electrical properties
for use in electrical contacts. More than 40 clips are pre-tooled,
covering a mating pin diameter range from 0.25 to 2.5 mm. They can
accept square or rectangular pin.
The clip is assembled into the contact body by press-fit on automatic
equipment including on-line inspections.
MAIN ADVANTAGES OF THE TECHNOLOGY
• The combination of existing standard clip with specific contact
body gives a flexibility unknown with traditional contact design
• Production of machined specific contact bodies is cost effective
starting at medium sized quantities
• PRECI-DIP automatic high speed contact assembly lines are
optimized for large production runs but also for smaller series
Precision screw-machined pin contacts are the best choice for many
• High quality, low dimensional tolerances
• Best surface of the mating end for applications requiring high
mating cycle count
• Wide range of dimensions and geometry
• Length from 3 to 50 mm
• Diameter from 0.25 to 6 mm
• Low initial (tooling) costs and attractive prices for medium and high
volume production due to manufacturing on high speed automatic
With its own plating unit, PRECI-DIP offers single source services for
BI-BLOC PIN CONTACTS
PRECI-DIP offers «selective plated» bi-bloc pin contact with the high
quality of machined contact and the advantages of selective plating.
These contacts are made from 2 parts: the contact body with
termination and the connecting or mating pin manufactured
separately and assembled after plating.
Due to technical progress, all information provided is subject to change without prior notice.