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Triac Arrays

Discussion in 'General Electronics Discussion' started by Germaine, May 13, 2012.

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  1. Germaine


    May 13, 2012
    Hi All,
    I've bought 4 Solid state relays for switching on seperate contactors and now realise they're very large and probably overkill for switching 24 vac. I googled and found a triac array STA221A which is a lot smaller and seems perfect for my needs, however it seems to be discontinued and I can't find it in the UK, can anyone suggest an alternative. I know I could just use 4 triacs but that's going to make my pcb messier than it needs to be, surely there's an alternative?

  2. Harald Kapp

    Harald Kapp Moderator Moderator

    Nov 17, 2011
  3. Germaine


    May 13, 2012
    I'm switching some contactors that are only drawing a few milliamps (not sure of the exact figure but proba nothing more than 60ma max). I'll have a look at your suggested product above, thank you.
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