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PS2561L-1-1-V from NEC

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PS2561L-1-1-V

Manufacturer: NEC

HIGH ISOLATION VOLTAGE SINGLE TRANSISTOR TYPE MULTI PHOTOCOUPLER SERIES

Partnumber Manufacturer Quantity Availability
PS2561L-1-1-V,PS2561L11V NEC 20000 In Stock

Description and Introduction

HIGH ISOLATION VOLTAGE SINGLE TRANSISTOR TYPE MULTI PHOTOCOUPLER SERIES The **PS2561L-1-1-V** is a high-performance optocoupler designed to provide reliable signal isolation in electronic circuits. As a part of the optocoupler family, it ensures electrical separation between input and output, enhancing safety and noise immunity in applications such as power supplies, industrial controls, and communication systems.  

Featuring a gallium arsenide infrared LED paired with a phototransistor detector, the PS2561L-1-1-V delivers efficient signal transmission while maintaining high isolation voltage. Its compact DIP-4 package makes it suitable for space-constrained designs, and its low power consumption ensures energy efficiency.  

Key specifications include a forward current of 50 mA, a collector-emitter voltage of 80 V, and a current transfer ratio (CTR) that ensures stable performance across varying conditions. The device complies with industry standards for safety and reliability, making it a dependable choice for isolating sensitive circuitry from high-voltage environments.  

Engineers often integrate the PS2561L-1-1-V in applications requiring signal conditioning, noise suppression, or voltage level shifting. Its robust design and consistent performance make it a versatile component in modern electronics, where isolation and signal integrity are critical.

Application Scenarios & Design Considerations

HIGH ISOLATION VOLTAGE SINGLE TRANSISTOR TYPE MULTI PHOTOCOUPLER SERIES

Alternative Part Number

  • PC817X1NSZ0F --: Standard 4-pin DIP photocoupler with similar CTR and isolation ratings, widely available and pin-compatible replacement for general switching applications.
  • EL817 --: Popular 4-pin DIP optocoupler with comparable current transfer ratio and 5kV isolation, commonly used as a drop-in substitute for NEC PS2561 series.
  • TLP281-1 --: Reliable 4-pin DIP phototransistor coupler with similar CTR and isolation voltage, suitable alternative when PS2561L-1-1-V is unavailable.

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