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 ? http://www.ebay.co.uk/itm/DC-12V-De...058434?hash=item5d58570cc2:g:UU0AAOSwqu9VRcAG or could you suggest something else to do this job.