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The 8 Best optocouplers of 2024

Are you trying to find optocouplers among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!

We investigated and evaluated a number of the top-selling optocouplers on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 13 hours of research and did 24 optocouplers tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!

An overview of our top picks

Table of contents

The best optocouplers you can buy today

No. 1
Bridgold 50pcs PC817c PC817 for Arduino DIY Through Hole transistor output optocoupler,4-Pin
  • Supply Voltage:international standard
  • Type:Integrated Circuits
  • 4 pins, dual row, 2.54mm pitch.Used widely in computer terminals
  • Size : 8 x 4 x 7mm/0.3" x 0.2" x 0.3" (L*W*H)
  • Material : Plastic, Metal
No. 2
HiLetgo 3pcs TLP281 Optocoupler Isolation Board Optical Coupler Isolation Module 4 Channel Optical Coupler Isolation Module High/Low Level Expansion Board
  • TLP281 4 Channel Optical Coupler Isolation Module
  • PCB Size: 25mm x 26mm
  • Connecting digital systems (like a 5V microcontroller) to a high-voltage or noisy system
  • A higher voltage than the TTL logic on the (3.3V or 5V) micro
  • A normal LED opto-isolator will invert the logic of a signal
No. 3
Comimark 10Pcs LCR0203 LCR-0203 Linear optocoupler DIP-4
  • This is LCR0203 LCR-0203 linear optocoupler DIP-4
  • Purpose: Audio,Power amplifier;Application field: 3C digital
  • Product information: LCR0203 LCR-0203 DIP4 photoresist isolator linear optocoupler special optocoupler for axial sound box
  • Package Included:10Pcs LCR0203 LCR-0203 Linear optocoupler DIP-4(If the number of products received is incorrect, please contact us. we will refund or give you a replacement.)
  • We highly appreciate all customers opinions to improve the selling, also if anything you unsatisfied, please contact us for probable best solution.
SaleNo. 4
NOYITO 4-Channel Optocoupler Photoelectric Isolator Module Level Voltage Converter Module PLC Signal Converter Module PNP NPN to PNP (3.3V to 5V)
  • NOYITO 4-Channel Optocoupler Photoelectric Isolator Module Level Voltage Converter Module with high quality optocoupler and LED patch indicator.
  • The power supply has anti-connection protection. The limit conversion frequency is 20Khz.
  • PCB size: 45x72mm. Module size: 48x86x40mm (LxWxH).
  • Widely used, it can be used for signal isolation, level conversion between signals such as single chip microcomputer and PLC. PNP,NPN signal to NPN signal, signal level conversion and other uses.
  • NOYITO 4-Channel Optocoupler Photoelectric Isolator Module User Manual https://1drv.ms/u/s!AlzQUCOyZQhKgQ3dvpz6np9ZL2Rw?e=oESws9
No. 5
ZCZQC 50pcs PC817 OPTOCOUPLER PC817C DIP-4 4-pin Transistor Output Optocoupler Photocoupler
  • High-quality material: plastic material, strong and durable, easy to use.
  • Energy dissipation, current: forward current (ICEO): 50mA Forward peak current (ICE max): 1A Reverse voltage: 6V Power consumption: 70mW Collector-emitter voltage: 35V Emitter-collector voltage: 6V Collector current: 50mA Collector power consumption: 150mW Total power consumption: 200mW Operating temperature: -30¡ãC~+100¡ãC Collector-emitter saturation voltage: 0.1V (typical).
  • Uses: PC817 photocoupler is widely used in computer terminals, thyristor system equipment, measuring instruments, copiers, automatic ticket vending and household appliances.
  • Simple design: delicate and small, simple atmosphere, beautiful workmanship, every detail is clearly visible.
  • Package quantity: 50pcs PC817 photocoupler.
No. 7
V BESTLIFE PC817 4 Channel Optocoupler Isolation Board Voltage Converter Adapter Module 3.6-30V Driver Photoelectric Isolated Module PC 817
  • This module is used when the actual operation requires isolation control and voltage conversion.
  • It can realize 3.3V or 5V to control the interface of 3.6--24V voltage level. 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.
No. 8
8-Channel Optocoupler Isolation Board,DC 3.3V 5V PNP NPN Signal Converter Voltage Converter Adapter 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.
No. 9
50PCS PC817 Optocoupler in-Line 2.54mm Pitch 4-pin DIP-4 Mounting Transistor Output Opticalcoupler for Computer Terminals Timers Osciallators Dual Opamps Quad Opamp
  • Feature: Integrated circuits have the advantages of small size, light weight, small solder joints, long life, high reliability, and good performance.
  • Application: PC817 photocoupler is widely used in computer terminals, timers, osciallators, dual opamps, quad opamps, comperators, audio amplifiers, echo processors, current mode controllers, darlington arrays, voltage charge pump,etc.
  • Low input: Low input bias current, low input offset voltage and offset current. Common mode input voltage range, including ground.
  • Durable material: The chip is made of metal oxide semiconductor material, which has good thermal stability and long service life.
  • Package includes: 50pcs PC817C 2.54mm pitch 4-pin DIP-4 transistor output optocoupler.
No. 10
HiLetgo 2pcs ADUM1201 Dual Channel Digital Magnetic Isolator Replace Optocouplers
  • Higher speed can reach 125Mbps.
  • Lower power consumption than the same data transfer rate when the traditional optical isolator 1/10, the minimum operating current 0.8mA.
  • Performance higher timing accuracy, transient common mode rejection, the degree of matching between channels are better than the traditional optical isolator.
  • The smaller the integration, the printed circuit board (PCB) area of 40% of the traditional photoelectric isolator.
  • Application: RS-232/RS-422/RS-485 transceiver isolation

How to choose a good optocouplers

Does the idea of finding a fantastic optocouplers make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!

Your presence here indicates that you are interested in optocouplers. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top optocouplers products available right now. You might be wondering how we came up with the list. How was this buying guide developed?

First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top optocouplers on the market right now!

The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:

Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top optocouplers brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.

Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top optocouplers based on those.

Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.

Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.

Customer ratings:  Would it be accurate to suggest that the optocouplers were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.

Customer Reviews: Like ratings,  provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.

Seller Rank: This is very intriguing! Not only do you need a good optocouplers, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.

Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your optocouplers.

Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting optocouplers for months and years to come.

Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.

Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.

These are the standards by which we selected our optocouplers. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.

Why should you believe us?

There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what optocouplers should you purchase in 2022?

This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on optocouplers.