Connect with us

Solid State Relays

Discussion in 'General Electronics Discussion' started by tiraas, Nov 26, 2012.

Scroll to continue with content
  1. tiraas


    Nov 26, 2012
    Does anyone know of a solid state photo relay that can receive 3-5v 10mA input that can do 5 - 25amps dc switching for less than $4 each?

    If it is multi packaged then $4 per channel
    An alternative would be an AND gate of some sort with 2 optical isolated inputs to do the same as the relay, but my design capabilities are limited since I am a software programmer.

    I have a 64x64 array of outputs so I need essentially a 4096 relay matrix.
    However I need to keep the costs minimal.
    The 4096 nodes are sequentially addressed in columns of 64 usually for 30 seconds per row.
    I thought 64 relays could do this, switching to 0v and ULN2803's providing the +, although this isn't an isolated solution.
    If anyone can think of a better solution, I am all ears.

    Thanks, tiraas.
  2. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    Jan 21, 2010
    This is close to your price range (cheaper in quantity)

    Even cheaper in large quantities.

    As to how far you'd trust it...

    This may be the same thing even cheaper!
  3. Gpino


    Nov 27, 2012
    Load that you are in charge?
    up to 100mA can use the TLP3061/62/63
    1A is if you can use AQH3113
    over or I'll build an optocoupler is a thyristor
    if you do not find them for a few pieces I can provide that information
    hello Gpino
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