findbuddha Posted December 19, 2010 Report Share Posted December 19, 2010 Is the contact resistance of a switch important? In BLM? I'm looking at the ALPS SKPG series: http://www.alps.com/products/WebObjects/catalog.woa/E/HTML/Tact/SurfaceMount/SKPG/SKPG_list.html (Nice tactile push feeling, but low noise) It's 1kOhm vs. 50-100mOhm for the other switches I've looked at. Thanks :) Quote Link to comment Share on other sites More sharing options...
TK. Posted December 19, 2010 Report Share Posted December 19, 2010 Since I wasn't sure I tried to switch button functions of my BLM with different resistor values. It works with 1k, 2.2k, 4.7k - it doesn't work with 10k anymore (I guess because the current through the diode isn't high enough) So, it should be ok for these buttons. Best Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
findbuddha Posted December 19, 2010 Author Report Share Posted December 19, 2010 TK, thanks heaps! Quote Link to comment Share on other sites More sharing options...
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