Best Optocouplers of 2026

The JZK PC817C Optocouplers are industry-standard components that make your projects straightforward and efficient. They are perfect for use on matrix, strip, or breadboards, ensuring versatility in your designs. Made from high-quality PC material, these lightweight optocouplers boast strong impact resistance, which enhances their durability. With a wide operating temperature range, you can rely on them for consistent performance in various environments. Overall, these features make the JZK PC817C an excellent choice for reliable signal transmission while increasing safety and simplifying your circuit designs.

The BOJACK PC817 Optocoupler is designed with a phototransistor output type, providing reliable signal transmission. With four pins and a needle distance of 2.54mm, it ensures easy integration into various electronic projects. This product comes in a convenient pack of 100 pieces, all stored in a durable resealable plastic box, making organisation and access simple. You will find this photocoupler ideal for applications such as computer terminals and household appliances, enhancing functionality in your devices.

The Youmile PC817 Boards are designed for versatile voltage control, accommodating driving port signals ranging from 3.3 to 24V while offering an output voltage range of 3.6 to 30V. This flexibility ensures that you can tailor the output to your specific needs without exceeding 10MA. The jumper cap feature allows you to set the output port as either high or low potential, enhancing usability. Additionally, with independent channels, you can manage different voltage controls simultaneously, making it a practical choice for complex projects.

The ALLECIN PC817C Optocoupler is a versatile photocoupler ideal for various electronic experiments. With its 4 pins and a 2.54mm pin pitch, it fits easily into standard circuit boards, making your projects simpler to assemble. Its high isolation voltage ensures reliable separation between input and output, protecting your devices from electrical interference. The double transfer mould package offers durability and robustness, so you can trust the product to perform well in different conditions.

The DONGKER Optocoupler Module offers optocoupler isolation control, ensuring that your signals remain stable and secure. With 8-channel input and output, you can easily manage multiple signals at once, making it ideal for complex setups. It supports both NPN and PNP signal outputs, providing flexibility for low and high-level signals. Additionally, it accommodates a range of input voltages from DC 3.3V to 5V, allowing you to use it in various applications with ease.

The Hailege ADUM1201 Isolator offers a dual channel digital magnetic isolation solution that significantly reduces power consumption, making it ten times more efficient than traditional optical isolators. With a minimum operating current of just 0.8mA, you can save on energy costs while maintaining performance. Its superior timing accuracy and transient common mode rejection ensure reliable data transmission, which is crucial for effective communication. Additionally, the compact design occupies only 40% of the PCB area compared to conventional isolators, providing convenience in space-limited applications.

The DONGKER Optocoupler Module is a versatile tool for signal isolation and level conversion. It allows you to easily convert PLC signal levels, making it ideal for both PNP and NPN signals. You'll find that each channel features an indicator, providing clear visibility of its operational status. With a conversion frequency of 80kHz, this module ensures efficient performance, helping you maintain effective communication in your electronic projects.

The RUNCCI-YUN PC817 Couplers are essential components for your electronic projects. Each unit is a photo coupler, which allows you to isolate different parts of your circuit, enhancing safety and performance. Crafted from durable plastic and metal, these couplers offer longevity and reliability. With a compact size of 8 x 4 x 7mm, they are perfect for tight spaces. Weighing just 3g, they are easy to handle and integrate into various applications, making them ideal for use with Arduino and similar platforms.

The DONGKER Optocoupler Module is designed with optocouplers to ensure reliable signal isolation, protecting your devices from electrical interference. It supports a limit conversion frequency of 20KHz, allowing for smooth and efficient signal processing. The compact size of 859818mm makes it easy to integrate into your projects without taking up much space. This module is ideal for converting signals between MCUs and PLCs, and it can transform PNP and NPN signals into PNP output, offering you flexible voltage level conversion for various applications.

The Gikfun PC817C Optocoupler is a pack of 20 units designed for Arduino DIY projects. Each optocoupler features 4 pins, making it easy to integrate into your circuits with a standard pin pitch of 2.54mm, which fits common breadboards and connectors. The optical transistor output type provides reliable electrical isolation, protecting your components from voltage spikes. With the Gikfun PC817C Optocoupler, you gain a convenient and efficient way to safely transfer signals between different parts of your electronic projects.