Electronics component question

Discussion in 'CycleChat Cafe' started by Reiver, 19 May 2017.

  1. Reiver

    Reiver Legendary Member

    I am wanting something to switch off a 4volt 10ma circuit '2 minutes' after the 12v supply has been switched off. However I am wanting the 4 volt circuit to switch on immediately the 12v supply is reinstated. Will this component do that job ?

    would the following do that job ?

    or could you suggest something else to do this job.
    Last edited: 20 May 2017
  2. slowmotion

    slowmotion Quite dreadful

    lost somewhere
    I think it might do the job. The description in the link is a bit hazy, but for a couple of quid, it's worth a punt.
  3. Andy_R

    Andy_R Hard of hearing..I said Herd of Herring..oh FFS..

    County Durham
    Looks like it - you can choose either delay on or delay off and set the delay time too. You just need to provide a voltage drop after the relay to get your 4V
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