Contents

The Best Optocoupler Board of 2023 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best Optocoupler Board of 2023. Check our ranking below.

2,818 Reviews Scanned

Rank No. #1

Alinan 4pcs 4CH Optocoupler PC817 4 Channel Isolation Board Voltage Converter Adapter Module 3.6-30V Driver Photoelectric Isolated Module

★Driving Port Signal Voltage: 3.6-24V; Output Port Voltage Port: 3.6-30V
★Can realize 3.3V or 5V to control the interface of 3.6-30V voltage . After the control terminal is turned on, the controlled terminal will also be turned on.
★Photoelectric isolation has strong anti-interference ability. Can drive big behindPower triodes, MOS tubes, etc., where high voltage driving is required, can also directly drive low power 24V relays.
★If it is a pulse signal, please note that the limit of 817 is below 4KHZ. If the control signal is greater than 4KHZ, please do not use this module, it will not work properly.
★Through the jumper cap can achieve whether the output is high potential output or low output.The 4th and 817 on the board are independent, which can realize simultaneous control of different voltages, etc.

Rank No. #2

AOICRIE 8pcs PC817 2 Channel Optocoupler Isolation Board Voltage Converter 3.6-30V Driver Photoelectric Isolated Module 817 Voltage Isolation Module

PC817 2 channel optocoupler isolation board is independent, can control different voltage at then same time.
2-way 817 optocoupler driving port signal voltage:3.6-24V; Output voltage range: 3.6-30V(The output current depends on the specific situation but not over 10MA. When the total power is fixed, the voltage and current are inversely proportional).
2 way 817 optocoupler to achieve the control signal and the control signal isolation, you can directly use the microcontroller or other devices IO port to achieve voltage isolation control, you can achieve a small voltage control, the control side can be an external transistor MOS tube or different voltage levels Of the device interface.
PC817 module jumper cap can be used to determine whether the output terminal is high potential output or low output.
If it is a pulse signal, please note that the limit of 817 is below 3KHZ. If the control signal is greater than 3KHZ, please do not use this module, it will not work properly.

Rank No. #3

DONGKER Optocoupler Isolation Board,DC 3.3V 5V PNP NPN 8-Channel Signal Converter Opto Voltage Isolation Module

Optocoupler isolation control.
8-Channel input and output.
NPN / PNP (Low/High level) signal output.
Support DC 3.3V~5V Input.
DC 1.8V-24V load voltage.

Rank No. #4

5 PCS Optocoupler Isolation Board, Icstation DC 12V Optocoupler Isolation Module EL817 1 Channel Opto PNP NPN Signal Converter, Isolator High-Level Trigger 80KHz

【Relay Switch Module】5pcs 1-channel photocoupler isolator with stable performance, triggered by DC 12V and 1mA current.
【Signal Voltage】Positive phase amplification with high-level trigger. Output equals input.
【Level Converter】Opto-isolators can be used as level converters (NPN-PNP, PNP-NPN), signal input to MCU in isolation, or MCU-controlled device output in isolation.
【Control Transformer】Optocoupler isolation board provide isolation between low and high-voltage circuits when used with other electronic devices.
【Functional Application】Devices for microprocessor Input/Output switching, DC/AC power control, communications equipment protection, and power supply regulation.

Rank No. #5

NOYITO 1-Channel PC817 Optocoupler Isolation Module Optoelectronic Isolator Signal Isolation and Anti-Interference 3-5V 12V 24V (Pack of 2) (3-5V)

NOYITO 1-Channel PC817 Optocoupler Isolation module adopts 5.0 pitch screw terminals for easy wiring . The module can play the role of isolation when the output level of the single-chip microcomputer drives the inductive devices such as motors and motors, and protect part of the circuit of the single-chip microcomputer against interference
The module can be used for high-voltage detection. For example, if the output signal level of a sensor is 12V, and the voltage of the microcontroller is 5V, this module can be used for isolation detection.
The module can also be used for current amplification. For example, when the output current of the microcontroller is too small to drive certain circuits, this module can be used for amplification.
Input signal voltage: 3-5V / 12V / 24V (optional).
Output signal voltage: wide voltage, suitable for DC1.8 - 24V.

Last update on 2025-07-04 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

How Do You Buy The Best Optocoupler Board?

Do you get stressed out thinking about shopping for a great Optocoupler Board? Do doubts keep creeping into your mind? We understand, because we’ve already gone through the whole process of researching Optocoupler Board, which is why we have assembled a comprehensive list of the greatest Optocoupler Board available in the current market. We’ve also come up with a list of questions that you probably have yourself.

We’ve done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for Optocoupler Board that you consider buying. Your questions might include the following:

Is it worth buying an Optocoupler Board?
What benefits are there with buying an Optocoupler Board?
What factors deserve consideration when shopping for an effective Optocoupler Board?
Why is it crucial to invest in any Optocoupler Board, much less the best one?
Which Optocoupler Board are good in the current market?
Where can you find information like this about Optocoupler Board?

We’re convinced that you likely have far more questions than just these regarding Optocoupler Board, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for Optocoupler Board, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible Optocoupler Board. Make sure that you are only using trustworthy and credible websites and sources.

We provide an Optocoupler Board buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available Optocoupler Board currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

Brand Value: Every brand of Optocoupler Board has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
Features: What bells and whistles matter for an Optocoupler Board?
Specifications: How powerful they are can be measured.
Product Value: This simply is how much bang for the buck you get from your Optocoupler Board.
Customer Ratings: Number ratings grade Optocoupler Board objectively.
Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Optocoupler Board.
Product Quality: You don’t always get what you pay for with an Optocoupler Board, sometimes less, and sometimes more.
Product Reliability: How sturdy and durable an Optocoupler Board is should be an indication of how long it will work out for you.

We always remember that maintaining Optocoupler Board information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding Optocoupler Board is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly! We’re here for you all the time. Contact us here. Or You can read more about us to see our vision.

FAQ:

Q: What can an optocoupler isolation board be used for?

A: AL-ZARD’s DST-1R4P-N is an optocoupler isolation board that comes in handy if you need to convert an electrical digital signal from one voltage level into another voltage level. A typical example is a digital 24V signal of an industrial sensor that has to be read by an ESP32 microcontroller.

Q: How is the optocoupler board used in Arduino?

A: The usage of the optocoupler board is basically similar to reading the state of the button. First, set the pin mode to INPUT_PULLUP in the setup function. In the loop function, simply read the value of the pin. As mentioned before, if the value is ‘low’ the actual digital signal on the corresponding input channel is ‘high’.

Q: What kind of circuit is an optocoupler used for?

A: Optocoupler also called Opto-isolator, photo coupler or optical isolator. Often in circuits, especially low voltage or highly noise sensitive circuits, Optocoupler is used to isolate circuitry to prevent electrical collision chances or to exclude unwanted noises.

Q: How is an opto coupler used in a microcontroller?

A: The photo transistor makes a response and converts the VOUT from 5V to 0V. In this configuration the opto-coupler can be connected across low voltage circuit such as microcontroller unit where the AC voltage detection is required. The output will produce square High to Low pulse.

Optocoupler Board