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PS2561AL1-1-V-A from NEC

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PS2561AL1-1-V-A

Manufacturer: NEC

HIGH ISOLATION VOLTAGE SINGLE TRANSISTOR TYPE MULTI PHOTOCOUPLER SERIES

Partnumber Manufacturer Quantity Availability
PS2561AL1-1-V-A,PS2561AL11VA NEC 11295 In Stock

Description and Introduction

HIGH ISOLATION VOLTAGE SINGLE TRANSISTOR TYPE MULTI PHOTOCOUPLER SERIES The **PS2561AL1-1-V-A** is a high-performance optocoupler designed to provide reliable electrical isolation between circuits while ensuring efficient signal transmission. This component integrates an infrared LED optically coupled with a phototransistor, making it suitable for applications requiring noise immunity, voltage isolation, and signal integrity.  

With a compact DIP-4 package, the PS2561AL1-1-V-A offers a high isolation voltage, ensuring safe operation in environments with potential voltage surges or ground loop issues. It features a fast response time, making it ideal for digital signal isolation in industrial controls, power supplies, and communication systems.  

Key specifications include a low forward current requirement for the input LED and a high current transfer ratio (CTR), enhancing energy efficiency and signal accuracy. The device operates reliably across a wide temperature range, ensuring stability in demanding conditions.  

Engineers often select the PS2561AL1-1-V-A for its robustness, long-term reliability, and compliance with industry standards. Its ability to prevent electrical interference while maintaining signal fidelity makes it a preferred choice for safety-critical and noise-sensitive applications.  

For detailed performance parameters, refer to the datasheet to ensure compatibility with specific circuit requirements.

Application Scenarios & Design Considerations

HIGH ISOLATION VOLTAGE SINGLE TRANSISTOR TYPE MULTI PHOTOCOUPLER SERIES

Alternative Part Number

  • PC817X1NSZ0F --: Industry-standard 4-pin DIP photocoupler with similar CTR and isolation ratings, widely available and pin-compatible replacement for NEC PS2561 series.
  • EL817 --: Popular 4-pin DIP optocoupler with comparable current transfer ratio and 5kV isolation, commonly used as a drop-in substitute for PS2561AL1-1-V-A.
  • LTV-817 --: Low-cost 4-pin DIP phototransistor optocoupler with equivalent CTR bins and isolation voltage, suitable functional replacement for the NEC part.

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