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MOC3081M from FSC,Fairchild Semiconductor

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MOC3081M

Manufacturer: FSC

6-Pin DIP 800V Zero Crossing Triac Driver Output Optocoupler

Partnumber Manufacturer Quantity Availability
MOC3081M FSC 2000 In Stock

Description and Introduction

6-Pin DIP 800V Zero Crossing Triac Driver Output Optocoupler # Introduction to the MOC3081M Optocoupler  

The **MOC3081M** is a highly reliable **optocoupler** designed for interfacing between low-voltage control circuits and high-voltage AC loads. It integrates a **gallium arsenide infrared LED** and a **triac-based output**, providing electrical isolation and noise immunity in switching applications.  

### Key Features  
- **Zero-crossing detection**: Ensures the triac triggers only when the AC voltage crosses zero, minimizing inrush current and electrical noise.  
- **600V peak blocking voltage**: Suitable for controlling standard AC mains voltages.  
- **Isolation voltage of 5,000Vrms**: Enhances safety by preventing high-voltage transients from affecting the control circuit.  
- **Compact DIP-6 package**: Facilitates easy integration into PCB designs.  

### Applications  
The MOC3081M is commonly used in:  
- **Solid-state relays** for motor and heater control.  
- **Light dimmers** and **AC power switches**.  
- **Industrial automation** systems requiring isolated switching.  

By combining **optical isolation** with **triac-based switching**, the MOC3081M ensures safe and efficient control of AC loads while protecting sensitive control electronics. Its zero-crossing capability makes it particularly useful in applications where reducing EMI and prolonging device lifespan are critical.  

For optimal performance, designers should adhere to recommended operating conditions, including appropriate current-limiting resistors for the input LED and proper heat dissipation for the output triac.

Application Scenarios & Design Considerations

6-Pin DIP 800V Zero Crossing Triac Driver Output Optocoupler

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