Best Photocouplers

Looking for the best photocouplers for your projects? We’ve curated a list of 10 top-quality photocouplers to help you find the perfect fit for your electronic needs.

Photocouplers are essential components for isolating signals in electronic circuits. They ensure safety and reliability by separating high-voltage and low-voltage systems. Whether you’re a DIY enthusiast or a professional engineer, choosing the right photocoupler can make all the difference in your projects.

These devices come in various types, from DIP packages to SMD designs, each suited for specific needs. They are easy to use and widely compatible, making them perfect for Arduino, computers, and power supplies. With options like high-speed isolators and compact models, there’s something for every application.

Ready to explore the best photocouplers for your projects? Dive in to discover top-quality components that promise stable performance and great value. Let’s find the perfect fit for your electronic needs!

List of Top 10 Photocouplers

Title	Best For	Price
10PCS PC817 1-Channel Type High Density Mounting Type Photocoupler	This 10PCS PC817 Photocoupler is perfect for DIY electronics enthusiasts and Arduino hobbyists. It’s easy to use and great for projects needing reliable isolation.	View on Amazon (paid link)
LinkWheres 50 Pcs PC817 PC817C Optocoupler – Transistor Output Photocoupler DIP-4 Package – 2.54mm Pitch for DIY Electronic Experiments (Includes Storage Box)	LinkWheres 50 Pcs PC817 Optocoupler is perfect for DIY enthusiasts and electronics hobbyists. It’s great for prototyping and signal isolation tasks.	View on Amazon (paid link)
DBParts New for 10PCS TLP521-4GB TLP521-4 P521GB P521 Photocoupler Optocoupler DIP-16	This product is perfect for electronics enthusiasts and DIY project lovers. It’s ideal for anyone needing reliable photocouplers for their circuits.	View on Amazon (paid link)
5PCS PC847 DIP-16 High Density Photocoupler	This 5PCS PC847 DIP-16 High Density Photocoupler is perfect for hobbyists and professionals working on electronics projects. It’s ideal for anyone needing reliable photocouplers in their designs.	View on Amazon (paid link)
DBParts New for 10PCS TLP250 Photocoupler OPTOcoupler DIP-8	This product is perfect for anyone who needs reliable photocouplers for their electronics projects. Whether you’re a hobbyist or a professional, these high-quality TLP250 DIP-8 components are ideal for your needs.	View on Amazon (paid link)
20pcs PC817B DIP-4 PC817 817 817B EL817 FOD817C LTV817A LTV-817-A High Density Mounting Type Photocoupler	This product is perfect for electronics enthusiasts and professionals who need reliable photocouplers for their projects. It’s ideal for high-density mounting and works great for DIY circuits or repairs.	View on Amazon (paid link)
tictocstore 2pcs ADUM1201ARZ Dual-Channel Magnetic Isolator – High-Speed, Low-Power Photocoupler Replacement with iCoupler Technology	This product is perfect for engineers and designers who need high-speed, low-power solutions for their circuits. It’s ideal for compact designs where space and efficiency matter.	View on Amazon (paid link)
5Pcs/lot Optocoupler Photocoupler Ic Chip Electronic Component Jc817 Kento	This 5-piece optocoupler set is perfect for electronics enthusiasts and DIY hobbyists. It’s ideal for projects needing reliable signal isolation.	View on Amazon (paid link)
(20pieces) PC3H4 PHOTOCOUPLER AC Input 4-SMD PC3 3H	This 20-piece PC3H4 Photocoupler is perfect for electronics enthusiasts and professionals who need reliable AC input components. It’s ideal for small projects or repairs requiring precise signal isolation.	View on Amazon (paid link)
100PCS PC817 photocoupler DIP-4	This 100PCS PC817 photocoupler DIP-4 is perfect for hobbyists and professionals working on electronics projects. It’s ideal for anyone needing reliable components for their circuit designs.	View on Amazon (paid link)

Detailed Reviews

Discover the top 10 photocouplers handpicked for reliability and performance. Each product is expert-reviewed and backed by customer feedback, ensuring you get the best value for your projects. Whether you’re a DIY enthusiast or a professional, this guide helps you find the perfect photocoupler to meet your needs.

1. 10PCS PC817 1-Channel Type High Density Mounting Type Photocoupler

The PC817 1-Channel Photocoupler is a high-density mounting solution perfect for Arduino projects. It comes in a pack of 10, making it a great value for your electronics needs. Each piece is 100% brand new, ensuring top quality.

This photocoupler has a 2.54mm pin pitch and a DIP-4 4-pin design. It offers an isolation voltage of 5kV and features an optical transistor output. Simple to use and reliable.

If you’re not 100% satisfied, enjoy a no-hassle refund. This product is ideal for DIY electronics and Arduino enthusiasts. Get yours today and start building with confidence!

Pros	Cons
High 5kV isolation keeps your gear safe. It fits breadboards with a 2.54mm pitch. Get ten new pieces in one great pack. The 4-pin design works well with Arduino. Enjoy a full refund if you are not happy.	Limited to 1-channel type, may not suit all projects. No advanced features, basic photocoupler for simple tasks. DIP-4 pins, not ideal for compact designs.

Perfect For:

This 10PCS PC817 Photocoupler is perfect for DIY electronics enthusiasts and Arduino hobbyists. It’s easy to use and great for projects needing reliable isolation.

Ready to Purchase?

View Price on Amazon (paid link)

2. LinkWheres 50 Pcs PC817 PC817C Optocoupler – Transistor Output Photocoupler DIP-4 Package – 2.54mm Pitch for DIY Electronic Experiments (Includes Storage Box)

LinkWheres 50 Pcs PC817 PC817C Optocoupler - Transistor Output Photocoupler DIP-4 Package - 2.54mm Pitch for DIY Electronic Experiments (Includes Storage Box)

The LinkWheres 50 Pcs PC817 Optocoupler is a must-have for DIY electronics. It comes in a handy storage box, keeping your components organized. Perfect for easy access and quick use.

These photocouplers offer high isolation voltage and stable performance. They fit standard breadboards and PCB sockets, making them ideal for prototyping.

With 50 pieces, you’ll have plenty for various projects. Use them in computers, appliances, or power supplies. A versatile and reliable addition to your electronic toolkit.

Pros	Cons
50-piece pack for all your DIY electronics needs. High isolation voltage ensures reliable performance. Fits standard breadboards for easy prototyping. Organized storage box keeps components handy and tidy.	No variety in package types for diverse project needs. Bulk quantity may be excessive for small DIY projects. Limited to DIP-4 package, not suitable for SMD designs.

Perfect For:

LinkWheres 50 Pcs PC817 Optocoupler is perfect for DIY enthusiasts and electronics hobbyists. It’s great for prototyping and signal isolation tasks.

Ready to Purchase?

View Price on Amazon (paid link)

3. DBParts New for 10PCS TLP521-4GB TLP521-4 P521GB P521 Photocoupler Optocoupler DIP-16

Get 10 brand-new TLP521-4GB photocouplers in one package. These high-quality optocouplers come in a DIP-16 format. Each piece is reliable and ready for use.

Enjoy peace of mind with a six-month warranty. Perfect for projects needing precise and dependable components.

Pros	Cons
Brand New parts for reliable performance. 10PCS Pack for great value and convenience. High Quality with a Six Months Warranty. DIP-16 design for easy installation.	No technical support offered with purchase. Limited warranty period of only six months. Bulk pack may be more than needed for small projects.

Perfect For:

This product is perfect for electronics enthusiasts and DIY project lovers. It’s ideal for anyone needing reliable photocouplers for their circuits.

Ready to Purchase?

View Price on Amazon (paid link)

4. 5PCS PC847 DIP-16 High Density Photocoupler

The 5PCS PC847 DIP-16 High Density Photocoupler is a reliable and efficient component for your electronic projects. It comes in a compact DIP-16 package, making it easy to integrate into your designs.

This product includes 5 pieces of the PC847 photocoupler, perfect for high-density applications. It’s simple to use and widely compatible. Get started with quality components today!

Pros	Cons
High-density design for compact and efficient use. Reliable photocoupler for stable signal isolation. Easy to integrate with DIP-16 packaging. Cost-effective with 5 pieces per package.	Limited quantity: Only 5 pieces per package. No extras: Missing accessories or tools. Specific use: Not suitable for all projects.

Perfect For:

This 5PCS PC847 DIP-16 High Density Photocoupler is perfect for hobbyists and professionals working on electronics projects. It’s ideal for anyone needing reliable photocouplers in their designs.

Ready to Purchase?

View Price on Amazon (paid link)

5. DBParts New for 10PCS TLP250 Photocoupler OPTOcoupler DIP-8

DBParts offers a brand-new set of 10 TLP250 photocouplers. These high-quality components come in a DIP-8 package. Each piece is carefully packed for your projects.

Enjoy a six-month warranty with your purchase. This ensures reliable performance and peace of mind.

Pros	Cons
Brand New TLP250 photocouplers for reliable performance. 10-Piece Pack offers great value for multiple projects. High-Quality DIP-8 design ensures durability and precision. Six-Month Warranty guarantees peace of mind with every purchase.	No return policy mentioned. Limited warranty period (six months). Bulk purchase only (10 pieces).

Perfect For:

This product is perfect for anyone who needs reliable photocouplers for their electronics projects. Whether you’re a hobbyist or a professional, these high-quality TLP250 DIP-8 components are ideal for your needs.

Ready to Purchase?

View Price on Amazon (paid link)

6. 20pcs PC817B DIP-4 PC817 817 817B EL817 FOD817C LTV817A LTV-817-A High Density Mounting Type Photocoupler

The PC817B DIP-4 Photocoupler is a high-density mounting type component. It comes in a pack of 20 pieces, making it ideal for bulk projects. This product is reliable and efficient for electronic applications.

It works with PC817, 817, 817B, EL817, FOD817C, LTV817A, and LTV-817-A models. Its compact DIP-4 design saves space on circuit boards.

This photocoupler is perfect for isolating signals in circuits. It ensures stable performance in various devices. Get this essential component for your electronics needs.

Pros	Cons
20pcs for bulk projects, saving time and money. High-density mounting fits tight spaces easily. Reliable photocoupler ensures stable performance every time. Versatile compatibility with multiple models for flexibility.	Limited to specific applications, not universal. Bulk purchase may be more than needed. No advanced features, just basic functionality.

Perfect For:

This product is perfect for electronics enthusiasts and professionals who need reliable photocouplers for their projects. It’s ideal for high-density mounting and works great for DIY circuits or repairs.

Ready to Purchase?

View Price on Amazon (paid link)

7. tictocstore 2pcs ADUM1201ARZ Dual-Channel Magnetic Isolator – High-Speed, Low-Power Photocoupler Replacement with iCoupler Technology

The tictocstore 2pcs ADUM1201ARZ is a next-gen magnetic isolator that replaces old photocouplers. It uses ADI’s iCoupler technology for better performance. This dual-channel isolator is perfect for modern designs.

It offers ultra-high speed up to 125Mbps with low power use. It saves 40% PCB space and works at just 0.8mA. Ideal for energy-efficient and compact circuits.

Flexible for bidirectional communication. Outperforms in timing and isolation. Simple to use in RS232 and other interfaces.

Pros	Cons
Replaces old optocouplers with next-gen magnetic tech. Saves power, runs at 1/10th the energy of others. Shrinks PCB space by 40%, fits tight designs. Doubles isolation voltage, beats optocoupler limits. Simplifies hardware with bidirectional channels on one chip.	Higher cost than traditional optocouplers. Limited compatibility with older systems. Requires specific design adjustments for optimal use.

Perfect For:

This product is perfect for engineers and designers who need high-speed, low-power solutions for their circuits. It’s ideal for compact designs where space and efficiency matter.

Ready to Purchase?

View Price on Amazon (paid link)

8. 5Pcs/lot Optocoupler Photocoupler Ic Chip Electronic Component Jc817 Kento

5Pcs/lot Optocoupler Photocoupler IC Chip is a smart electronic part for clean signal control. It helps keep circuits safe and steady.

This set gives you 5 pieces in one lot. It is small, simple, and easy to use. It fits many repair and build jobs.

The JC817 Kento part is made for clear signal transfer. It is a good pick for basic circuit work. It helps your project stay reliable.

Pros	Cons
5-piece lot offers great value for your projects. Reliable Jc817 Kento ensures stable performance. Easy to use for quick electronic upgrades. Compact design fits tight spaces effortlessly.	Limited quantity in the lot, may not meet larger project needs. No variety in the package, all pieces are the same type. Basic component, lacks advanced features for complex applications.

Perfect For:

This 5-piece optocoupler set is perfect for electronics enthusiasts and DIY hobbyists. It’s ideal for projects needing reliable signal isolation.

Ready to Purchase?

View Price on Amazon (paid link)

9. (20pieces) PC3H4 PHOTOCOUPLER AC Input 4-SMD PC3 3H

The PC3H4 Photocoupler is a compact and reliable component. It comes in a pack of 20 pieces, making it ideal for various projects. This product is designed for AC input applications.

It measures 0.39 inches in height, length, and width. The 4-SMD design ensures easy installation. Its small size makes it perfect for tight spaces.

Manufactured by Lszewg, this photocoupler meets high-quality standards. The part number DZZW2486-493-2114066611 ensures you get the right component. Trust this product for your electronic needs.

Pros	Cons
Small size fits in tight spots. Steady power from the AC input. Great value with 20 pieces included. Strong design lasts for a long time. Good brand name you can trust.	No warranty offered for this product. Limited size options available for specific needs. Brand not widely recognized in the market.

Perfect For:

This 20-piece PC3H4 Photocoupler is perfect for electronics enthusiasts and professionals who need reliable AC input components. It’s ideal for small projects or repairs requiring precise signal isolation.

Ready to Purchase?

View Price on Amazon (paid link)

10. 100PCS PC817 photocoupler DIP-4

The PC817 photocoupler is a reliable electronic component. It comes in a DIP-4 package, making it easy to use. This product includes 100 pieces, perfect for various projects.

It’s simple to integrate into circuits. The PC817 ensures efficient signal isolation.

Pros	Cons
100 pieces for big projects or backups. PC817 photocoupler ensures reliable signal isolation. DIP-4 package fits standard circuit boards easily. Bulk pack saves time and money on purchases.	Limited to DIP-4 packaging, may not fit all projects. No variety in quantity, only 100PCS available. Basic model, lacks advanced features for complex tasks.

Perfect For:

This 100PCS PC817 photocoupler DIP-4 is perfect for hobbyists and professionals working on electronics projects. It’s ideal for anyone needing reliable components for their circuit designs.

Ready to Purchase?

View Price on Amazon (paid link)

Buying Guide

Photocouplers are key parts for safe and reliable electronics. They isolate signals between high and low voltage systems. Picking the right one boosts your project’s performance.

Buying Guide for Best Photocouplers
Choosing the perfect photocoupler is easy when you know what to look for. Here’s a simple guide to help you decide:

Type and Package:
Pick DIP for breadboards or SMD for compact designs. Match the package to your project’s needs.
Channel Count:
Choose single-channel for simple tasks or dual-channel for more complex setups.
Isolation Voltage:
Higher voltage means better safety. Look for 5kV or more for robust protection.
Output Type:
Transistor outputs are common, but magnetic isolators offer faster speeds for modern designs.
Speed:
For high-speed projects, go for 125Mbps or more. Slower speeds work fine for basic tasks.
Power Use:
Low-power options save energy. Ideal for battery-powered or eco-friendly projects.
Size:
Compact designs fit tight spaces. Measure your board area before buying.
Quantity:
Buy in bulk for big projects. Smaller packs are great for testing or small builds.
Warranty and Quality:
Look for brand-new parts with warranties. Ensures reliability and peace of mind.
Compatibility:
Check if it works with your system, like Arduino or RS232 interfaces.

With these tips, you’ll find the perfect photocoupler for your needs. Happy building!