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Your cart is empty.Simone
Reviewed in Italy on September 7, 2022
Presi per riparare alcuni relay bruciati e fuori produzione in una vecchia saldatrice. Ottimo prodotto ha funzionato alla grande!
laurent
Reviewed in France on November 13, 2022
Un optocoupleur utile pour détecter la présence de courant 24vUne étoile en moins pour l'absence de notice correctement traduite.
Emy
Reviewed in Germany on October 7, 2022
The description and summary state 5V tension but the actual component is a 24V one so it doesn't work for the purpose I had purchased it.
Customer
Reviewed in Canada on September 8, 2021
Works great.
Maurizio
Reviewed in Italy on September 10, 2020
come da descrizione, funziona molto bene, specie se si passa dalla modalità H alla modalità L
Ray Hakopian
Reviewed in the United States on April 16, 2020
Got them right on time, it does the job perfectly well.
a c
Reviewed in the United States on July 15, 2019
Used the 12vdc relays for my 12vdc charging project. One for the charging and other to cutoff the load during charging. In a different 12vdc project used a lm358 circuit to triggering the relay in a over voltage cutoff which would cutoff it main 12vdc supply so it could not restart.
Louis J. Haskell
Reviewed in the United States on June 20, 2019
I found this to be a solid product, especially for the price. I wanted to be able to use it for an input of 3V or 5V logic. Of course, the supply voltage must be 5V. If you are using 5V like an Arduino, you can choose to use either logic high or low to operate the relay using a small jumper between pins as shown in the product photo. If logic low is chosen, the input pin will be at a logic 1 at about 4.2V. Driving that to a low or ground will operate the relay. Because that voltage is there at idle, an operation using a logic low CANNOT be used with 3V logic like a Raspberry Pi or ESP8266. When choosing a logic high to operate the relay, there is no voltage on the input. A logic high of either 3V or 5V will operate the relay. I measured the current draw at 1ma at 3V and 1.7ma at 5V. This is easily handled by the Arduino for 5V and the Raspberry Pi and ESP8266 for 3V logic. Therefore, ALWAYS using logic high operation for 3V logic.
Daniel L. Pryor
Reviewed in the United States on May 4, 2019
Arrived as promised. Great Product.
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