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→Switching Contacts
===<!--6.4.4 -->Switching Contacts===<ul>'''Effects during switching operations'''
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<figure id="fig:fig6Histogram_of_the_contact_resistance_Rk">[[File:Histogram of the contact resistance Rk.7jpg|left|thumb|<caption>Histogram of the contact resistance R<sub>K</sub> of an electroplated palladium layer (3 μm) with and without hard gold flash plating (0.2 μm) after exposure with different plastic materials</caption>]]</figure> <figure id="fig:Contact resistance with exposure to out gasing from plastics">[[File:Contact opening resistance with arc formation schematicexposure to out gasing from plastics.jpg|left|thumb|<caption>Contact opening resistance with exposure to out-gasing from plastics as a function of numbers of operations at 6 V<sub>DC</sub>,100 mA: 1 Silicon containing plastic; 2 Plastics with strongly out-gasing components; 3 Plastics with arc formation (schematic)minimal out-gasing components</caption>]]
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<figure id="fig:fig6.9Distribution of cumulative frequency H of the contact resistance for solid contact rivets">[[File:Histogram Distribution of cumulative frequency H of the contact resistance Rkfor solid contact rivets.jpg|left|thumb|<caption>Histogram Distribution of cumulative frequency H of the contact resistance Rfor solid contact rivets after 10 days exposure in a three-component test environment with 400 ppb each of H<sub>2</sub>S, SO<sub>K2< /sub> of an electroplated palladium layer (3 μm) with and without hard gold flash plating (0NO<sub>2</sub> at 25°C, 75% RH; Contact force 10cN; Measuring parameters: ≤ 40 mV<sub>DC</sub>,10 mA; Probingcontact: Gold rivet</caption>]]</figure><figure id="fig:Influences on contact areas in relays">[[File:Influences on contact areas in relays.2 μm) after exposure with different plastic materialsjpg|right|thumb|<caption>Influences on contact areas in relays</caption>]]
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<div class="multiple-images"><figure id="fig:Arc erosion of a AgSnO2 contact pair after extreme arcing conditions">[[File:Arc erosion of a AgSnO2 contact pair after extreme arcing conditions.jpg|left|thumb|<caption>Arc erosion of a Ag/SnO<sub>2</sub> contact pair after extreme arcing conditions a) Overall view; b) Partial detail view</caption>]]</figure></div>
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==References==
[[Application Tables and Guideline Data for Use of Electrical Contact Design#References|References]]
[[de:Schaltende Kontakte]]