David Johnson & Associates, an engineering consulting firm, is committed to providing exceptional electronic.  Services include applications engineering and new product development. Improving the cost and performance of existing product is a specialty.  Our reputation is that we provide swift solutions to difficult engineering problems in innovative and cost effective ways.
                    "
Electronics is my vocation, hobby and passion. David A. Johnson, P.E.


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Faraday Capacitance Proximity Switches

 

Faraday Capacitance Proximity Touch Switches

Faraday Capacitance Proximity Switches

 
Model FS3N
INTERNALLY POWERED
Model FS3X
EXTERNALLY POWERED
Model QTFS3X
EXTERNALLY POWERED
 
Model FS3N-1
INTERNALLY POWERED
Max Input Capacitance = 250pF
Model FS3X-1
EXTERNALLY POWERED
Max Input Capacitance = 250pF
Model QTFS3X-L
EXTERNALLY POWERED
with LED Indicator Light

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HOME Page     Credentials      Design Expertise       Services Offered       Sample R&D       Sample Projects  
Products & Photos
    Past Client List       Dave's Family      Faraday Switches      Contact Us   
Copyright © 2000-2008 David Johnson. All rights reserved.   Any trademarks are the property of their respective owners.