Are you trying to find optoisolators 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 optoisolators 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 15 hours of research and did 30 optoisolators 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 optoisolators you can buy today
- Brand New
- Package Include: 50Pcs
- DIP-4
- High Quality & Six Months Warranty
- The board electrically isolates the controller from the high-power system by using an opto-isolator IC. The opto-isolator breakout IC has built-in two LEDs and two photodiodes, allowing the low-voltage side to control the high-voltage side.
- This is specially designed for optical isolation, which helps to connect digital systems to high-voltage or noisy systems.Good isolation performance, complete electrical isolation between input and output.
- The breakout board uses ILD213T opto-isolator and discrete transistors to calibrate the logic, with two channels. It is very suitable for use in noisy circuits where signal lines need electrical isolation.
- Using this board can allow the microcontroller to control the servo system or other motors. These motors use a higher voltage than the TTL logic on the micro (3.3V or 5V), and may affect our system when the motor is turned on and off. Cause electromagnetic interference.
- Easy to connect logic circuits, fast response speed, high transmission efficiency： this optoisolator is configured for data rates up to 9600bps. Compatible with dual wave, vapor phase and IR reflow soldering
- Brand New
- Package Include: 20Pcs
- DIP-6
- High Quality & Six Months Warranty
- 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
- 4N25 6Pin Optoisolators Transistor DIP
- Current Transfer Ratio (Min): 20% @ 10mA
- Voltage - Output: 30V Current - DC Forward (If): 60mA
- Voltage - Isolation: 7500Vpk
- 10X 4N25
- Output: OUT1 / OUT2 / OUT3 / OUT4
- Output: HVCC: Connection is control of high voltage anode,
- HGND connection is control of high voltage anode
- Package Included: 2 x 4-Channel Module Expansion Board (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.
- ❤Optocoupler Isolation Board Voltage more than 3000V . Input Current:50MA(MAX). Operating Current:more than 1MA. Output Maximum Current:50MA (when input voltage is within the range of 15－20MA)
- ❤EL817 photoelectric isolator, SCM output level can be used to isolating,anti-interference and protect SCM some circuit when driving motor
- ❤Isolator High-Level Trigger 80KHz, SCM outpput level is low,and driven module voltage is high
- ❤Can be applied to inverter,which can invert output the input signal, High Voltage Testing, Current Amplification
- ❤SHOP WITH CONFIDENCE: To Provide You With the Highest Quality Service, If You Have Any Question, Please Feel Free to Contact Us.We Will Provide After-sales Service Until You Are Satisfied.
- Brand New
- Package Include: 20Pcs
- DIP-6
- High Quality & Six Months Warranty
- Brand New
- Package Include: 20Pcs
- DIP-6
- High Quality & Six Months Warranty
- This module is used when it comes to the need for isolation control and voltage conversion.
- Drive terminal signal voltage: 3.6-24V. Output terminal voltage range: 3.6-30V (output current depends on the specific situation but the maximum does not exceed 10MA, the total power is constant, the voltage and current are inversely proportional)
- It 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. It can drive high-power triodes, MOS tubes and other applications that require high-voltage driving, and can also directly drive low-power 24V relays.If it is a pulse signal, please note that the limit of 817 is 4KHZ or less. If the control signal is greater than 4KHZ, please do not use this module, it will not work properly.
- 【8-Channel Optocoupler Isolation Board ASIN ： B09RGTBDKJ 】 NOYITO PC817 4-Channel Optocoupler Isolation Board User Manual https://1drv.ms/u/s!AlzQUCOyZQhKgT98ibtG22R8W5eQ?e=VfKbrK
- 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.
- Gikfun Packing 20pcs OPTOCOUPLER DIP-4 PC817C PC817
- Number of Pin: 4
- Pin Pitch: 2.54mm
- Optocoupler Output Type: optical transistor
- Used widely in computer terminals, system appliances, measuring instruments, registers, copiers, automatic vending machines etc
- 【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.
- 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.
- Photocoupler output type: phototransistor
- Number of pins: 4
- Needle distance: 2.54mm
- Package quantity: 50 pieces, packed in a durable and resealable plastic storage box.
- Application: PC817 photocoupler is widely used in computer terminals, SCR system equipment, measuring instruments, photocopiers, automatic ticketing, household appliances
- 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.
- ★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.
- NOYITO TLP281 4-Channel Optocoupler Isolation Board is helpful for connecting digital systems (like a 5V microcontroller) to a high-voltage or noisy system.
- This board electrically isolates a controller from the high-power system by use of an opto-isolator IC. This IC has four LEDs and four photodiodes built-in. This allows the low-voltage side to control a high voltage side.
- This board uses the TLP281 optoisolator and discrete transistors to correct the logic. Comes with four channels. Great for use in noisy circuits where signal lines require electrical isolation.
- A normal LED opto-isolator will invert the logic of a signal. We putsome transistors on this compact board to correct the inversion. What you put into the IN pins, will be replicated on the the OUT pins, but at the higher voltage (HV).
- 【Manufacturer's One-year Warranty】
- Output: OUT1 / OUT2 / OUT3 / OUT4 output current is equal to the largest HVCC / 5.1K,Maximum absorption current 500mA .
- Input: IN1 / IN2 / IN3 / IN4, SCM or for Arduino IO port, GND with single-chip microcomputer or for Arduino board GND connection.
- User Manual https://1drv.ms/b/s!AlzQUCOyZQhKgXqZMr8dACmZ3x-i?e=ewAhPy
- Product Name: Optocoupler Sharp;Model: PC817
- Number of Pin: 4; Pin Pitch: 2.54mm
- Size: 9 x 5 x 8mm/0.35" x 0.2" x 0.31" (L*W*H)
- Package Content: 30pcs Mounting Photo Coupler
- Used widely in computer terminals, system appliances, measuring instruments, registers, copiers, automatic vending machines etc
How to choose a good optoisolators
Does the idea of finding a fantastic optoisolators 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 optoisolators. 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 optoisolators 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 optoisolators 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 optoisolators 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 optoisolators 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 optoisolators 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 optoisolators, 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 optoisolators.
Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting optoisolators 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 optoisolators. 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 optoisolators 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 optoisolators.
