Due to the customized nature and the wide variety of membrane switch designs, it can be somewhat challenging to outline a general set of specifications that covers all membrane switches.  We’ve done our best to to listed below some basic electrical performance specifications.

• Contact Material: silver, carbon, gold or nickel
• Voltage: 30 volts DC
• Rated Current/Voltage: 20mA@30 volts DC resistive load
• Contact Bounce: < 20 milliseconds
• Loop Resistance: The loop resistance of a switch is a function of trace width and length. In most applications the maximum loop resistance is less than 100 ohms.
• Dielectric Strength: 5000V max on polyester material 
• Open Circuit Resistance: 10 ohms
• Capacitance: 20 picofarads
• Maximum Switch Power: 1 watt
• Design Configuration (illustrated below): Common Bus, XY Matrix, or Custom