OptoBlog

DigiKey now a national distributor for Opto 22

Posted by Janice Colmer on Dec 3, 2025 8:40:34 AM

Now you have a new source for all Opto 22 products, from solid-state relays to the latest groov edge devices.

Looking for a stocking distributor for all your industrial controls? DigiKey, one of the world's largest distributors of electronic components, is now serving as a national distributor for Opto 22 products across the United States.

If you're an engineer, system integrator, or business looking for reliable industrial I/O, controllers, and edge computing solutions, read on to see how this partnership gives you easier access to Opto 22 products.

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Topics: SSRs, groov EPIC, snap pac, groov RIO, OptoChannel

New video: Find your ideal industrial automation manufacturer

Posted by Janice Colmer on Aug 5, 2024 1:53:29 PM

Looking for an innovative source to help with your application challenges?

What's on your list of requirements when selecting a supplier? How about 50 years of reliable products made in the U.S.A., multiple technologies for your digital transformation, and free product support and training?

That's the Opto 22 difference, and our engineering and sales teams are ready to help you with your projects.

Discover what makes Opto 22 different in this new, one-minute video.

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Topics: Videos, SSRs, groov EPIC, snap pac, groov RIO, Opto 22 product support

OptoNews: Restriction of Hazardous Substances (RoHS) compliance update

Posted by Jean Femia on Aug 7, 2017 10:00:00 AM

Does it comply?

For some time now we've been working to make sure our products comply with the latest requirements for RoHS (Restriction of Hazardous Substances) and CE marking (a mark indicating that the product meets all legal requirements to be sold in the European Economic Area, or EEA).

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Topics: Machine builder, optonews, PACs, OEM, I/O, SSRs

OptoNews Tip: Choosing an SSR for your application

Posted by Jean Femia on May 15, 2017 12:27:13 PM

Over 40 years ago, Opto 22 started manufacturing solid state relays (SSRs). With the wide variety we've built over the years, we probably have the SSR you need in stock right now.

We also have some advice on choosing and running SSRs in specific applications.

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Topics: Tips, SSRs

OptoNews Tip: Top 4 tech tips from 2016

Posted by Jean Femia on Jan 4, 2017 3:39:10 PM

Did you miss any of these technical tips?

Now's a good time to review some automation basics—and look ahead to new technologies in our field.

Accuracy and resolution. Specifications for both of these are included for our analog modules. What's the difference?

Sinking and sourcing. What do these terms mean when you're wiring digital DC outputs, and which is the better way to wire? Lots of questions and answers on this one.

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Topics: Discrete control, Tips, optonews, I/O, SSRs, Node-RED, OptoNews 2017-01-04, Raspberry Pi, Digital I/O for Raspberry Pi

OptoNews Tip: SSR or EMR - Which should you use?

Posted by Jean Femia on May 25, 2016 3:25:21 PM

We've been manufacturing solid state relays (SSRs) for more than 40 years now.

In fact, that's how Opto 22 started: our founders discovered a better way to build SSRs.

So of course we want you to use SSRs. (And choose Opto's guaranteed-for-life models!)

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Topics: optonews, SSRs, OptoNews 2016-05-25

Selecting a solid-state or electromechanical relay for an application

Posted by David Hill on Apr 8, 2016 12:52:43 PM

Opto 22 knows solid-state relays (SSRs) very, very well. We’ve been manufacturing our optically isolated, epoxy-filled SSRs for more than 40 years, and over that time have gained quite a bit of practical knowledge and experience about using SSRs in applications.

SSRs have replaced electromechanical relays (EMRs) in many applications, thanks to their advantages:

long service life
low noise generation
compact size
no moving parts
total absence of arcing

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Topics: Tips, SSRs

OptoNews tip: How to test an AC SSR

Posted by Jean Femia on Jan 20, 2016 4:09:49 PM

Solid state relays (SSRs) are simple, reliable devices. If one stops working, typically it just refuses to turn on or off.

How do you test it to see if it has failed?

If you're used to testing mechanical relays, you'll find an SSR requires a different testing method: it requires a load.

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Topics: Tips, optonews, SSRs, OptoNews 2016-01-20

OptoBlog

DigiKey now a national distributor for Opto 22

Now you have a new source for all Opto 22 products, from solid-state relays to the latest groov edge devices.

New video: Find your ideal industrial automation manufacturer

Looking for an innovative source to help with your application challenges?

OptoNews: Restriction of Hazardous Substances (RoHS) compliance update

Does it comply?

OptoNews Tip: Choosing an SSR for your application

OptoNews Tip: Top 4 tech tips from 2016

OptoNews Tip: SSR or EMR - Which should you use?

Selecting a solid-state or electromechanical relay for an application

OptoNews tip: How to test an AC SSR

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