Posts: 15
Joined: Mon Feb 10, 2020 10:41 am

Is there anyone who used this relay?

Fri Mar 27, 2020 8:11 am

I'm trying to make project that use chip resistor to cut some wire like fishing wire.

And In project, I have to use relay module.

But, I try to use other relay module not SONGLES module.

So, Is there anyone who used this relay?

It's SSR.

If so, Can you tell me how can I connect it?

(Or, Do I must use SONGLE?)
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Posts: 8324
Joined: Fri May 31, 2013 9:28 pm
Location: Mansfield UK

Re: Is there anyone who used this relay?

Fri Mar 27, 2020 9:58 am

You will not be able to drive these relays directly from a gpio pin,

As the PDD0-103N requires at least 4V to drive the input,
the red relay has searchable no part no. so I was unable to look it up, so to be on the safe side I would not drive it directly from a gpio pin.

So you will need to use a simple transistor drive between the pi and the relays.


So the PDD0-103N is marked as being an SSR so should not need a reverse voltage protection diode, the other one is not marked such, but I suspect it is, but you might want to just check that you cant hear a mechanical contact switch when you power the relay.
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