A customer wants to build a simple "switch": on the top side comes a
BeCu spring (like the contact strips for EMV shielding), the bottom
contact is a galvanic Ni/Au finger contact on a FR4 PCB. The switch
is actuated (=opened) by a roentgen film (made of Polyester) which
slides between the contact, the contacts themselves don't move
against eachother. The customer asked me for the number of "switch
cycles" for this construction. Has anybody out there any experiences
with the switch cycles of such a construction? Is it comparable with
the simple turn switches found in multimeters or other low cost
equipment (BeCu contacts sliding on a PCB?)? How many cycles survive
these last mentioned low cost switches? (Without grease!)

Any help appreciated! Thanks in advance, regards
Matthias Mansfeld
-----------------------------------------------
Matthias Mansfeld Elektronik
* Printed Circuit Board Design and Assembly
Am Langhoelzl 11, D-85540 Haar, GERMANY
Phone: +49-89-4620 0937, Fax: +49-89-4620 0938
E-Mail: [log in to unmask]
Internet: http://www.mansfeld-elektronik.de

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