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4N25.300W from QT

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4N25.300W

Manufacturer: QT

GENERAL PURPOSE 6-PIN PHOTOTRANSISTOR OPTOCOUPLERS

Partnumber Manufacturer Quantity Availability
4N25.300W,4N25300W QT 30 In Stock

Description and Introduction

GENERAL PURPOSE 6-PIN PHOTOTRANSISTOR OPTOCOUPLERS **Introduction to the 4N25 Optocoupler**  

The **4N25** is a widely used optocoupler (opto-isolator) designed to provide electrical isolation between two circuits while allowing signal transmission through an optical link. This component consists of an infrared LED and a phototransistor housed in a compact 6-pin DIP (Dual In-line Package). The 4N25 is commonly employed in applications requiring noise immunity, voltage level shifting, or protection against high-voltage transients.  

Key features of the 4N25 include a high isolation voltage (typically 5,300V), a current transfer ratio (CTR) ranging from 20% to 300%, and a switching speed suitable for moderate-frequency applications. Its robust design makes it ideal for use in power supplies, industrial control systems, and communication interfaces where signal integrity and safety are critical.  

The **4N25.300W** variant indicates a specific version optimized for reliability and performance under demanding conditions. Engineers often select this optocoupler for its ability to prevent ground loops, suppress electromagnetic interference (EMI), and enhance system safety by isolating sensitive control circuits from high-voltage sections.  

With its proven durability and versatility, the 4N25 remains a fundamental component in modern electronic design, ensuring secure and efficient signal transfer across isolated circuits.

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