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MOC223

SMALL OUTLINE OPTOISOLATORS DARLINGTON OUTPUT

Partnumber Manufacturer Quantity Availability
MOC223 52608 In Stock

Description and Introduction

SMALL OUTLINE OPTOISOLATORS DARLINGTON OUTPUT # Introduction to the MOC223 Optocoupler  

The MOC223 is a widely used optocoupler (opto-isolator) designed to provide electrical isolation between two circuits while allowing signal transmission through an optical interface. This component consists of an infrared LED paired with a phototransistor, ensuring reliable signal transfer without direct electrical connection.  

Optocouplers like the MOC223 are essential in applications requiring noise immunity, voltage level shifting, or safety isolation. The device is commonly employed in industrial controls, power supply feedback circuits, and communication systems where electrical interference must be minimized.  

Key features of the MOC223 include a high isolation voltage, ensuring protection against voltage spikes, and a compact package that facilitates easy integration into various circuit designs. Its phototransistor output allows for compatibility with both digital and analog signals, making it a versatile choice for different electronic applications.  

When selecting an optocoupler, engineers often consider parameters such as current transfer ratio (CTR), response time, and voltage ratings—all of which influence performance in specific use cases. The MOC223 balances these factors effectively, offering dependable operation in moderate-speed switching environments.  

For designers seeking a cost-effective and robust isolation solution, the MOC223 remains a practical option, combining reliability with straightforward implementation. Proper circuit design, including appropriate current-limiting resistors for the input LED, ensures optimal performance and longevity.

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