Connect with us

membrane switches

Discussion in 'Electronic Design' started by Raveninghorde, Nov 20, 2012.

Scroll to continue with content
  1. I am working on a simple led membrane label.

    I have found the switch is more of a resistor dropping 200mV-300mV at
    14mA so 15 to 20 ohms.

    Googling I find metion of worst case switch resistance of 500 ohms.

    Looks like I need a FET to switch the current.
  2. TTman

    TTman Guest

    Why? you will no doubt need a series resistor anyway...
    OTOH, they don't last long with those sort of currents so use a FET...
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day