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PS2911-1-F3 from NEC

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PS2911-1-F3

Manufacturer: NEC, RENESAS

High CTR optocoupler.

Partnumber Manufacturer Quantity Availability
PS2911-1-F3,PS29111F3 NEC, RENESAS 2919 In Stock

Description and Introduction

High CTR optocoupler. The **PS2911-1-F3** is a high-performance optocoupler designed to provide reliable signal isolation in electronic circuits. This component features an integrated infrared LED paired with a phototransistor, ensuring efficient electrical isolation between input and output while maintaining signal integrity.  

With a compact and industry-standard DIP-4 package, the PS2911-1-F3 is widely used in applications requiring noise immunity and voltage separation, such as power supplies, industrial controls, and communication systems. Its high isolation voltage and fast response time make it suitable for environments with high electromagnetic interference (EMI).  

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

Engineers favor the PS2911-1-F3 for its durability, compliance with international safety standards, and ease of integration into existing circuit designs. Whether used for feedback control, signal conditioning, or noise suppression, this optocoupler delivers consistent performance in demanding applications.  

For designers seeking a dependable isolation solution, the PS2911-1-F3 offers a balance of performance, reliability, and cost-effectiveness.

Application Scenarios & Design Considerations

High CTR optocoupler.

Alternative Part Number

  • TLP185(GB-TPL,SE --: Similar single-channel phototransistor optocoupler in a small SOP package with comparable CTR and isolation, a common drop-in replacement for NEC PS2911 series.
  • PC817X1NSZ0F --: Widely available single-channel phototransistor optocoupler with similar isolation voltage and CTR range, suitable for general signal isolation applications.
  • EL817S1(C)-V --: Cost-effective single-channel optocoupler with comparable CTR and isolation ratings, commonly used as an alternative to NEC PS2911-1-F3.
  • TLP291-1 --: Pin-compatible single-channel phototransistor optocoupler with similar CTR and isolation ratings, widely available as a direct substitute.
  • PC817X1NSZ0F --: Industry-standard single-channel optocoupler with comparable current transfer ratio and isolation voltage, suitable for general signal isolation.
  • LTV-817S --: Low-cost single-channel phototransistor optocoupler with similar electrical characteristics and SMD package options.

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