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PS2561-1-V from NEC

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PS2561-1-V

Manufacturer: NEC

HIGH ISOLATION VOLTAGE SINGLE TRANSISTOR TYPE MULTI PHOTOCOUPLER SERIES

Partnumber Manufacturer Quantity Availability
PS2561-1-V,PS25611V NEC 21222 In Stock

Description and Introduction

HIGH ISOLATION VOLTAGE SINGLE TRANSISTOR TYPE MULTI PHOTOCOUPLER SERIES The **PS2561-1-V** is a high-performance optocoupler designed to provide reliable signal isolation in electronic circuits. As an essential component in modern electronics, it ensures safe voltage separation between input and output stages, protecting sensitive circuits from electrical noise, surges, and potential ground loops.  

Featuring an infrared LED optically coupled to a phototransistor, the PS2561-1-V delivers efficient signal transmission while maintaining electrical isolation. With a typical isolation voltage of 5,000 Vrms, it is well-suited for applications requiring robust noise immunity, such as industrial controls, power supplies, and communication interfaces.  

Key characteristics include a compact DIP-4 package, fast response times, and a wide operating temperature range, making it adaptable to various environmental conditions. Its low power consumption and high current transfer ratio (CTR) enhance energy efficiency and signal integrity.  

Engineers frequently integrate the PS2561-1-V into systems where galvanic isolation is critical, including motor drives, medical equipment, and automation devices. By ensuring secure signal transfer across isolated circuits, this optocoupler contributes to improved system reliability and safety.  

For designers seeking a dependable isolation solution, the PS2561-1-V offers a balanced combination of performance, durability, and ease of integration.

Application Scenarios & Design Considerations

HIGH ISOLATION VOLTAGE SINGLE TRANSISTOR TYPE MULTI PHOTOCOUPLER SERIES

Alternative Part Number

  • PC817X1NSZ0F --: Industry-standard general-purpose phototransistor optocoupler with similar CTR and isolation ratings, widely available and pin-compatible in DIP-4.
  • EL817 --: Direct DIP-4 phototransistor optocoupler replacement with comparable current transfer ratio and 5 kV isolation, low cost and broad availability.
  • LTV-817 --: Equivalent DIP-4 optocoupler offering similar CTR bins and isolation voltage, commonly used as a drop-in substitute for NEC PS2561 series.
  • PC817X1NSZ0F --: Industry-standard general-purpose phototransistor optocoupler with CTR and isolation ratings comparable to the PS2561, widely available and pin-compatible in DIP-4.
  • EL817 --: Low-cost DIP-4 phototransistor optocoupler with similar CTR range and 5 kV isolation, commonly used as a drop-in replacement for NEC PS2561 series.
  • TLP781 --: Reliable DIP-4 phototransistor optocoupler from a major Japanese maker, matching isolation voltage and CTR characteristics of the PS2561-1.

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