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
- 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.
- Onboard 4 channel 817 are independent: can achieve different voltage control at then same time
- 4-way 817 optocoupler driving port signal voltage:3.3-24V; 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)
- 4 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 achieve output port is high potential or pull down 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.
- 【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.
- Photocoupler output type: phototransistor.
- Number of pins: 4.
- Needle distance: 2.54mm.
- Package Quantity: 50 pcs.
- Application: PC817 optocoupler is widely used in computer terminals, thyristor system equipment, measuring instruments, copiers, automatic ticketing, household appliances.
- 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.
- 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
- 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
- ALLECIN 4N25 Optocoupler - commonly used electronic components.
- Reverse Voltage: 3V ; Forward Current: 60mA.
- Features & Advantages: Long service life, reliability and performance.
- Widely Application: 4N25 Optocoupler is widely used in various applications.
- Humanized packaging for easy storage and use. # Printed markings for easy identification.
- 1 channel
- 6 pin
- 1.5 volts
- Power: 200Mw
- Low input current requirements – 0.5mA
- High output current – 60mA
- High common mode noise line receiver
- High current transfer ratio – 2000% typical
- NOTE:Exposure to absolute maximum rating conditions for extended periods may affect device reliability
- 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.
- Voltage: 5000V
- Unit count: 10.0
- The Package Weight of the Product is 0.022 kilograms
- Package Dimensions: 10.16 H x 2.54 L x 5.08 W (centimeters)
- Driving Port Signal Voltage:3.3-24V; Output voltage range: 3.6-30V(The output current depends on the specific situation but no more than 10MA;When the total power is fixed, the voltage and current are inversely proportional.)
- 【Jumper Cap】The jumper cap can achieve high potential output or low potential output.
- 【Independent Voltage】Onboard 2-Channel 817:can achieve different voltage control at the same time.
- 【Note】If it is a pulse signal, please note that the limit of 817 is below 3KHZ. If the control signal is greater than 3KHZ, do not use this module, it will not work properly.
- 【Package Content】6 x PC817 2 Channel Optocoupler Isolation 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
- 【30VDC 250VAC Load】 Equiped with high-current relay, AC250V 10A ; DC30V 10A, each relay has normally open and normally closed contact. Can be selected by jumper relay and TTL or ground.
- 【High Level Trigger】The relay module is triggered by high level signal, which can be input from microcontroller IO.
- 【 3V/3.3V power relay module】- This Relay Board provides a single relay that can be controlled by any 3V/3.3V digital input from your microcontroller IO.
- 【Wide Application】- These 3v relay board works well with ARM /PIC /AVR /MCU/Raspberry/CNC machine/ PS4/3.3V /NodeMCU/ ESP8266 module etc.
- 【Long Life】 - Fast response time less than 20ms and long lifetime up to 100,000 times snap action with diode freewheel protection.
- ★Appearance Size:85*98*18mm
- ★Adopt optocoupler. Limit Conversion Frequency:20KHz
- ★Applications:for signal isolation;MCUs and PLCs level conversion of signals;transform PNP,NPN singal into PNP signal;signal level voltage convert
- ★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.
- 1-way optocoupler isolation module with EL817 features, providing input voltage of DC 3V ~ 5V and output voltage suitable for DC1.8V-24V, ensuring broad voltage application and optimal signal conversion for various devices
- Opto-isolator with isolation voltage greater than 3000V, offers maximum input current of 50MA and working temperature range of -55~110 degrees, ensuring reliable and safe signal isolation and conversion in diverse environments
- PC817 Card Rail Bracket Input 3-5V Optocoupler Isolation Module with maximum output current 50MA, designed for input current within 15-20MA and maximum application signal frequency of 5KHz, ensuring efficient signal conversion and transmission
- Optocoupler featuring operating current> 1 MA, suitable for a wide range of input and output signal voltage, and provides optimal signal transmission and conversion for electronic devices and circuits
- The card guide rail bracket input 3-5V, the optoelectronic isolator provides a reliable and versatile solution for signal isolation and conversion, ensuring seamless integration and operation in various electronic systems
- ★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.
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.
