RUNCCI-YUN 60Pcs Optocoupler PC817C 2.54mm Pitch 4 Pins DIP-4 Mounting Photo Coupler for Arduino (Pack of 60)

Not a lot can be said about these devices, they did exactly what was expected with 100% reliability, none of them dead on arrival / early failure. Seller was very quick to dispatch, they arrived nicely presented and well packaged.

I needed to control interface a 12V signal to a 3V3 pin and bought a pack of these optos, they’re industry standard and very easy to use. The datasheet covers the details of driving them and the amount of current they can handle, in my case it was very low so I didn’t need any additional logic, just the opto and a couple of resistors and away I went. Great for either matrix, strip or bread board use and cheap.

If you're into DIY projects, electronics tinkering, or enjoy working with similar items, these optocouplers can serve as a useful addition to your set of tools and supplies for creating things at home or wherever you work. I got a set to connect a 12-volt signal to a 3.3-volt pin. They did the job perfectly fine without any issues at all. The parts came in a plastic container, which is excellent for keeping everything neat and organised in your workspace or wherever you keep your tools. The instructions that come with them are straightforward and easy to understand, even if you're not an expert in electronics or anything technical like that. It's all very user-friendly! ""I managed to connect them by using a couple of resistors."" On another note, if you're looking for a product that offers more than the standard features of an optocoupler, you might not find it here. Surprisingly, they were delivered before the expected time, so hats off to their service. I've already integrated some into a matrix, and so far, they've been functioning flawlessly. However, it's important to note that despite their performance, they are essentially just optocouplers at their core.

All came in a little plastic box, nice and strong box at that too. What else can one say, they're optocouplers and they do what they're designed to do. A great price too! Well done Amazon.

Not much you can say about components really, other than these work to spec, had no duds and inexpensive for the quantity and quality.

Required too many mA's to activate the output. OK if your not constrained and don't care about power consumption.

The RUNCCI-YUN 60Pcs Optocoupler PC817C 2.54mm Pitch 4 Pins DIP-4 Mounting Photo Couplers arrived in perfect condition and earlier than expected. Excellent service. Many thanks.