Best Phototransistor Optocoupler Kits

Looking for the best phototransistor optocoupler kits? Discover our top 10 picks to help you find the perfect match for your electronic projects and elevate your work today.

Phototransistor optocoupler kits are essential tools for anyone working on electronic projects. They bridge the gap between different parts of a circuit, ensuring safe and reliable signal transfer. Whether you’re a hobbyist or a professional, these kits offer versatility and precision.

Choosing the right optocoupler kit can make your project stand out. From basic replacements to complex designs, these components are easy to integrate and highly dependable. They’re perfect for automation, power supplies, and signal isolation.

Explore our top picks for the best phototransistor optocoupler kits. Find the perfect match for your needs and elevate your projects today.

List of Top 10 Phototransistor Optocoupler Kits

Title	Best For	Price
GuuYebe 50 Pcs PC817 Optocoupler PC817C Optocouplers	Electronics enthusiasts and DIY learners who love building circuits will find these reliable optocouplers totally useful.	View on Amazon (paid link)
TAODAN 50pcs PC817 Optocoupler DIP 2.54 mm Pitch 4-pin DIP-4 IC Chipset	This TAODAN 50pcs PC817 Optocoupler is perfect for anyone working on electronics projects or repairs. It’s great for computer terminals, household appliances, and measuring instruments.	View on Amazon (paid link)
BOJACK PC817 OPTOCOUPLER DIP Installation PC817C 2.54 mm Pitch 4-pin DIP-4 (Pack of 50 pcs)	This PC817 optocoupler is perfect for electronics engineers and technicians who work with circuit boards. It has a 4-pin DIP package with 2.54mm pitch. You get 50 pieces in a resealable plastic box. Use it in SCR systems, measuring tools, or home appliances. It gives safe signal isolation. This is a must-have for your workshop or lab.	View on Amazon (paid link)
NOYITO PC817 4-Channel Optocoupler Isolation Board Voltage Converter Adapter Module 3.6-30V Driver Photoelectric Isolated Module	This NOYITO PC817 4-Channel Optocoupler Isolation Board is perfect for anyone needing to control and convert voltage safely. It’s ideal for projects requiring strong anti-interference and high-voltage driving, like driving relays or MOS tubes.	View on Amazon (paid link)
20PCS EL357N 357N EL357N-C EL357 SOP-4 Phototransistor Optocoupler	This 20PCS EL357N 357N EL357N-C EL357 SOP-4 Phototransistor Optocoupler is perfect for anyone needing reliable isolation in industrial controls, power supplies, or general circuits. It’s ideal for projects requiring consistent performance and good noise immunity.	View on Amazon (paid link)
10pair PT204-6B IR204-A Everlight Infrared Phototransistor and Everlight Infrared LED Lamp	This set is perfect for makers and hobbyists. It works great for smart home projects and robotics.	View on Amazon (paid link)
50PCS LTV-817 Optocoupler IC, DIP-4 Phototransistor Optoisolator, 5kVrms Isolation, 35V 50mA, CTR 50%-600%, for SMPS Feedback, Power Supply & Signal Isolation	This perfect optocoupler suits electronics pros and students building power supply circuits or doing PCB repair work. It protects control circuits with strong signal isolation for very safe testing.	View on Amazon (paid link)
20 Pcs Transistor Output optocoupler AT817C-FeL-SE Optocoupler – Phototransistor Output SMD-4P DC	This product is perfect for anyone who needs reliable optocouplers for their electronic projects. It’s great for DIY enthusiasts, students, or professionals working with circuits and components.	View on Amazon (paid link)
20 Pcs Transistor Output optocoupler PC817B Optocoupler – Phototransistor Output DIP-4 DC	This optocoupler is perfect for electronics hobbyists and students learning circuit design. It is also great for engineers building safety circuits. The PC817B chip helps isolate high and low voltage parts. You get 20 pieces in one pack. This DIP-4 part works with DC power. It gives you a phototransistor output for clean signal transfer. Use it to build LED flashers, relay boards, or microcontroller projects. This transistor output optocoupler keeps your circuits safe and stable. Get yours today.	View on Amazon (paid link)
10 Pcs Transistor Output optocoupler AT4N35-CuH-D Optocoupler-Phototransistor Output DIP-6 DC	This product is perfect for anyone who needs reliable optocouplers for their electronic projects. It’s great for DIY enthusiasts, students, or professionals working with DC circuits.	View on Amazon (paid link)

Detailed Reviews

Discover the top 10 Phototransistor Optocoupler Kits handpicked for reliability and performance. Each kit is expert-reviewed and customer-approved, ensuring you find the perfect match for your projects. Whether you need affordability or advanced features, this guide has you covered—start exploring now!

1. GuuYebe 50 Pcs PC817 Optocoupler PC817C Optocouplers

The GuuYebe PC817 Optocoupler kit includes 50 pieces of PC817C optocouplers. These are essential components for optoelectronic projects. Each piece is reliable and easy to use.

The PC817 optocoupler has a phototransistor output and 4 pins. The needle distance is 2.54mm, making it compatible with standard setups. This kit is perfect for replacing equipment parts.

These optocouplers are widely used in SCR systems and other applications. The 50-piece package ensures you have plenty for your projects.

Pros	Cons
50-piece kit for all your optocoupler needs. Widely applied in equipment repairs and upgrades. Easy to use with 4 pins and 2.54mm spacing. Reliable phototransistor output for consistent performance.	No variety in package sizes – only 50 pieces. Limited specs – 4 pins, 2.54mm needle distance only. No advanced features – basic phototransistor output.

Perfect For:

Electronics enthusiasts and DIY learners who love building circuits will find these reliable optocouplers totally useful.

Ready to Purchase?

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2. TAODAN 50pcs PC817 Optocoupler DIP 2.54 mm Pitch 4-pin DIP-4 IC Chipset

The TAODAN PC817 Optocoupler is a reliable 4-pin DIP IC chipset. It comes in a pack of 50 pieces, perfect for bulk projects. Each piece has a 2.54 mm pitch, making it easy to use.

This optocoupler features a phototransistor output type. It’s widely used in various applications, from computers to home appliances. Its simple design ensures smooth integration.

The PC817 optocoupler is ideal for many devices. It works well in measuring tools, copiers, and more. Get 50 pieces to keep your projects running smoothly.

Pros	Cons
50-piece pack offers great value for multiple projects. 4-pin DIP design ensures easy integration into circuits. 2.54mm pitch fits standard breadboards and PCBs perfectly. Versatile use in appliances, computers, and more.	Limited to specific applications, not universal. No built-in protection against high voltage. Bulk pack may be excessive for small projects.

Perfect For:

This TAODAN 50pcs PC817 Optocoupler is perfect for anyone working on electronics projects or repairs. It’s great for computer terminals, household appliances, and measuring instruments.

Ready to Purchase?

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3. BOJACK PC817 OPTOCOUPLER DIP Installation PC817C 2.54 mm Pitch 4-pin DIP-4 (Pack of 50 pcs)

Meet the BOJACK PC817 Optocoupler. You get fifty pieces in one box.

These four-pin chips work fast. Use them in home appliances and computers.

Grab your pack today. Build your circuit right. Boost your project now.

Pros	Cons
Reliable phototransistor output for safe signal isolation 2.54mm pin spacing fits standard breadboards easily 4-pin DIP-4 package ensures simple through-hole installation 50 pieces included in a sturdy reusable storage box Widely used in electronics like printers, timers, and sensors	Limited to specific applications, not universal. No built-in protection against high voltage. Bulk pack may be excessive for small projects.

Perfect For:

This PC817 optocoupler is perfect for electronics engineers and technicians who work with circuit boards. It has a 4-pin DIP package with 2.54mm pitch. You get 50 pieces in a resealable plastic box. Use it in SCR systems, measuring tools, or home appliances. It gives safe signal isolation. This is a must-have for your workshop or lab.

Ready to Purchase?

View Price on Amazon (paid link)

4. NOYITO PC817 4-Channel Optocoupler Isolation Board Voltage Converter Adapter Module 3.6-30V Driver Photoelectric Isolated Module

This module converts control signals into strong voltage levels. It provides strict electrical isolation for safety.

Drive high power parts like MOS tubes easily. Connect 24V relays for your project needs. Check the speed limit since 4KHZ is max.

Pros	Cons
Isolates and converts voltage for safe control. Drives high-power devices with strong anti-interference. Controls 3.6-30V devices with low voltage inputs. Directly drives 24V relays for easy integration.	Limited pulse speed at 4KHZ Low output power with 10mA limit Does not drive high power loads

Perfect For:

This NOYITO PC817 4-Channel Optocoupler Isolation Board is perfect for anyone needing to control and convert voltage safely. It’s ideal for projects requiring strong anti-interference and high-voltage driving, like driving relays or MOS tubes.

Ready to Purchase?

View Price on Amazon (paid link)

5. 20PCS EL357N 357N EL357N-C EL357 SOP-4 Phototransistor Optocoupler

The EL357N 357N EL357N-C SOP-4 Phototransistor Optocoupler is a reliable and versatile component. It comes in a standard package for easy use.

This general-purpose optocoupler works well in industrial controls and power supplies. It ensures consistent performance and good noise immunity.

Simple to use, widely compatible, and dependable. Perfect for isolation circuits.

Pros	Cons
Reliable performance for industrial and power supply needs. Noise-resistant design ensures stable operation in any setup. Standard package fits general isolation applications perfectly. Consistent and compatible for dependable circuits.	Limited to general-purpose use, not for specialized needs. Standard isolation, may not suit high-demand applications. No advanced features, lacks extra functionality.

Perfect For:

This 20PCS EL357N 357N EL357N-C EL357 SOP-4 Phototransistor Optocoupler is perfect for anyone needing reliable isolation in industrial controls, power supplies, or general circuits. It’s ideal for projects requiring consistent performance and good noise immunity.

Ready to Purchase?

View Price on Amazon (paid link)

6. 10pair PT204-6B IR204-A Everlight Infrared Phototransistor and Everlight Infrared LED Lamp

This product includes 10 pairs of Everlight Infrared Phototransistors and Everlight Infrared LED Lamps. Each pair is designed to work together for reliable performance.

The PT204-6B and IR204-A components are high-quality and easy to use. They are perfect for projects needing infrared light detection.

Pros	Cons
High-quality Everlight components for reliable performance. 10 pairs included for great value and convenience. Infrared technology ensures precise and efficient operation. Easy to use for quick project integration.	No instructions included for easy setup. Requires soldering skills to work well. Tiny parts are hard to handle.

Perfect For:

This set is perfect for makers and hobbyists. It works great for smart home projects and robotics.

Ready to Purchase?

View Price on Amazon (paid link)

7. 50PCS LTV-817 Optocoupler IC, DIP-4 Phototransistor Optoisolator, 5kVrms Isolation, 35V 50mA, CTR 50%-600%, for SMPS Feedback, Power Supply & Signal Isolation

50PCS LTV-817 Optocoupler IC, DIP-4 Phototransistor Optoisolator, 5kVrms Isolation, 35V 50mA, CTR 50%-600%, for SMPS Feedback, Power Supply & Signal Isolation

The LTV-817 Optocoupler IC is a 50-piece set of phototransistor optoisolators in a DIP-4 package. These components are ideal for circuit design, replacement, and prototyping, offering reliable performance in various applications.

With a 5kVrms isolation voltage, these optocouplers ensure safe electrical separation between control and output circuits. They also feature a CTR range of 50%-600%, providing clear input-side characteristics for precise signal transfer.

These optocouplers are perfect for SMPS feedback, power supply circuits, and signal isolation. They operate in extreme temperatures and are easy to use in industrial and prototyping projects.

Pros	Cons
50-piece pack for bulk projects and replacements. 5kV isolation ensures safe circuit separation. Wide CTR range (50%-600%) for reliable performance. High-temp operation (-55°C to +110°C) for tough environments.	No surface-mount option, limits modern PCB designs. High CTR range may need extra calibration for precision. Bulk packaging, not ideal for small projects.

Perfect For:

This perfect optocoupler suits electronics pros and students building power supply circuits or doing PCB repair work.
It protects control circuits with strong signal isolation for very safe testing.

Ready to Purchase?

View Price on Amazon (paid link)

8. 20 Pcs Transistor Output optocoupler AT817C-FeL-SE Optocoupler – Phototransistor Output SMD-4P DC

The AT817C-FeL-SE is a 20-piece set of transistor output optocouplers. These SMD-4P components are easy to use and reliable. They are perfect for DC circuits.

These phototransistor output optocouplers are great for isolating signals. They are ideal for projects that need precise control.

Pros	Cons
20-piece pack offers great value for multiple projects. SMD-4P design ensures easy and reliable installation. Phototransistor output delivers precise signal control. DC compatibility works seamlessly with common systems.	May overheat without proper heat management Limited current capacity for high-power circuits Sensitive to static during installation

Perfect For:

This product is perfect for anyone who needs reliable optocouplers for their electronic projects. It’s great for DIY enthusiasts, students, or professionals working with circuits and components.

Ready to Purchase?

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9. 20 Pcs Transistor Output optocoupler PC817B Optocoupler – Phototransistor Output DIP-4 DC

This 20 Pcs Transistor Output Optocoupler PC817B is a reliable electronic component. It provides isolated signal transmission with a phototransistor output in a DIP-4 package rated for DC operation.

These optocouplers are ideal for circuit protection and signal isolation. Each unit delivers stable switching performance. They are perfect for automation and control systems.

Pros	Cons
20 pieces for bulk projects and cost-effective solutions. Reliable PC817B optocoupler for safe signal isolation. Phototransistor output ensures high sensitivity and fast response. DIP-4 package for easy integration into circuit boards.	Limited to 4-pin configuration only. No built-in protection against voltage spikes. Requires external resistors for safe operation.

Perfect For:

This optocoupler is perfect for electronics hobbyists and students learning circuit design. It is also great for engineers building safety circuits. The PC817B chip helps isolate high and low voltage parts. You get 20 pieces in one pack. This DIP-4 part works with DC power. It gives you a phototransistor output for clean signal transfer. Use it to build LED flashers, relay boards, or microcontroller projects. This transistor output optocoupler keeps your circuits safe and stable. Get yours today.

Ready to Purchase?

View Price on Amazon (paid link)

10. 10 Pcs Transistor Output optocoupler AT4N35-CuH-D Optocoupler-Phototransistor Output DIP-6 DC

These are 10 pieces of AT4N35-CuH-D optocouplers. Each one has a phototransistor output. They come in a DIP-6 package with 10 pieces per pack.

They provide electrical isolation between circuits. The transistor output ensures reliable switching. These optocouplers work with standard DC power.

Use them in DIY electronics projects. They are great for circuit protection and safe signal transfer.

Pros	Cons
Get ten pieces in one pack. Enjoy clear data transfer with high speed. Fits easy on any standard board. Built strong for safe power use.	Limited to specific circuits, not universal. No built-in protection against voltage spikes. Bulk pack may be excessive for small projects.

Perfect For:

Ready to Purchase?

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Buying Guide

Choosing the right optocoupler kit can be a game-changer for your projects. Here’s what to consider when buying:

Type of Optocoupler:
Pick between phototransistor, SCR, or triac types based on your project needs. Each type works best for specific tasks.
Package Style:
Choose DIP, SMD, or SOP packages. DIP is great for breadboards, while SMD fits compact designs.
Pin Count and Pitch:
Check the pin count (like 4-pin or 6-pin) and pitch (like 2.54mm). These ensure compatibility with your circuit.
Isolation Voltage:
Look for high isolation voltage (like 5kVrms) for safety in power supply and industrial projects.
Current Transfer Ratio (CTR):
A higher CTR (like 50%-600%) means better signal strength. Choose based on your project’s sensitivity.
Operating Voltage:
Match the optocoupler’s voltage range (like 3.6-30V) to your circuit’s power supply for smooth operation.
Quantity in Kit:
Decide if you need a small pack (like 10 pieces) or a bulk pack (like 50 pieces) based on your project scale.
Application Compatibility:
Ensure the optocoupler works for your application, like automation, signal isolation, or power supplies.
Brand Reliability:
Go for trusted brands like GuuYebe, TAODAN, or BOJACK for consistent quality and performance.

With these factors in mind, you’ll find the perfect phototransistor optocoupler kit to elevate your projects.