Relay ttl 5vdc coil problem

[LarrylLix]

But your link doesn't seem to work... it goes to cocoontech.com/din.html  

Strange I posed that link and tested it after, too. Now I have edited it and pasted the correct one in below. It was exactly the same without the html framing.

OK, the forum software is working differently then.
Thanks.

 

[BTCAD]

I can use ssr but is temperature become very hot if the current is to high.
 
One other thing is that SSR device doesn't allow NC. Only NO is possible.
 
 
I use Fotek ssr 

 

[rossw]

One other thing is that SSR device doesn't allow NC. Only NO is possible.

 
This used to be true in the early days of SSRs but has not been true for several years now.
Using depletion-mode mosfets, NC operation is possible, and commercial SSRs are readily available in this configuration.