Talk:Solid-state relay

Untitled

I have a very little knowledge in the relays and other electrecal parts, but I need to ask about if the soild state relay and the electronic relay are the same? and if not, how can I obtain informations about the electronic relay. thanks alot.

 86.108.111.18 16:59, 23 February 2007 (UTC)Mag

Suggestions for this article:

1. Include an explanation of "Zero-Voltage" switching feature found on many AC relays.
2. What does "Fail short more easily than electro-mechanical relays" under disadvantages mean.

It means when electro-mechanical relays fail, they usually fail in the "off" state. SCR's are more likely to fail stuck in the ON state, which could be dangerous depending on the type of circuit.

98.141.69.89 (talk) 19:56, 11 April 2008 (UTC)

Note the "Am I using the right heatsink?" link is dead.

Interwiki-Link

Page should be connected to German article /de:Relais#Halbleiterrelais/. Unfortunately Wikidata refuses entry. /de:Relais/ is already linked to /en:Relais/... Good luck! Abrev (talk) —Preceding undated comment added 10:09, 19 May 2013 (UTC)

Electromechanical relays tend to fail open?

I would have said they are just as likey to fail closed due to contact welding. --86.173.134.241 (talk) 14:16, 21 June 2013 (UTC)

Depends why they fail. Some high-current ones fail short, but most failures are mechanical wear in the actuators and these fail open. Andy Dingley (talk) 15:22, 21 June 2013 (UTC)

Diagrams needed

Schematics showing internal structure would be really nice. --Hooperbloob (talk) 14:58, 22 October 2013 (UTC)

Minimum output current

I read the following advantage wrong:

Lower (if any) minimum output current (latching current) required

Because it says output current, I was thinking about the load, not the control signal. Obviously no current needs to flow through the contacts of a relay, so I assume it's about the LED in the optocoupler or similar. In my opinion, it should say something more like "control current", but I'm not knowledgeable enough about the topic to be sure about this, so hopefully someone else can assess this properly. Digital Brains (talk) 21:44, 8 February 2014 (UTC)

Name after the last link

The name "Roger Parr" after the last link doesn't make any sense, so I remove it. Sofia Koutsouveli (talk) 01:09, 22 March 2014 (UTC)

Counterfeit solid state relays

There's a huge problem in the industry with fake solid state relays. UL (safety organization) has issued a warning notice.. Most of the solid-state relays sold on Amazon and eBay are fakes. Should this go in the article? John Nagle (talk) 07:19, 26 October 2016 (UTC)

Explosive area : Misleading information ?

"No sparking, allows it to be used in explosive environments, where it is critical that no spark is generated during switching."

This text, under 'advantages', could be interpreted as 'it is safe to use any solid state relay in explosive environments', which is not true.

I would suggest changing this to something like 'This technology can be used to manufacture relays that are safe to use in explosive environments.'

galvanic isolation required?

> "The control signal must be coupled to the controlled circuit in a way which provides galvanic isolation between the two circuits."

Why should that be the case? Is galvanic isolation a defining characteristic of solid state relays? Abdull (talk) 07:07, 24 June 2025 (UTC)

Not strictly (by the definition), but as it's importanly useful for most purposes it's pretty much universal. Andy Dingley (talk) 10:45, 24 June 2025 (UTC)