MOC3021

MOC3021 Optocoupler

The MOC3021 optocoupler is a high-performance 6-pin DIP device. It isolates low-voltage control circuits from high-voltage AC loads. This part is perfect for hobbyists and professionals. It drives triacs and SCRs in switching applications. Electra Store offers genuine components with fast shipping.

This optocoupler uses an infrared LED and a phototriac. It provides 7500V peak isolation. The MOC3021 optocoupler works with 115VAC and 240VAC systems. It has a zero-crossing feature for reduced EMI. You can use it in solid-state relays and motor controls.

The MOC3021 optocoupler acts as a safe bridge between control and power. It takes a small DC signal from a microcontroller. Then it switches a large AC load without direct contact. This prevents damage to sensitive logic circuits. The zero-crossing detection turns the load on at the voltage zero point. This cuts down on electrical noise and stress. The phototriac inside the MOC3021 optocoupler can handle high surge currents. It is a reliable choice for repeated switching tasks. The 6-pin DIP package fits standard breadboards and PCBs. You can solder it easily into your design. Electra Store tests each MOC3021 optocoupler for quality. You get consistent performance every time.

Key Features

• 6-pin DIP package for easy PCB mounting
• High isolation voltage of 7500V peak
• Zero-crossing detection for smooth switching
• Operating temperature range -40°C to +85°C
• Lead-free and RoHS compliant
• Direct replacement for standard MOC3021 parts

What's Included

• One MOC3021 optocoupler in anti-static packaging
• Datasheet with pinout and application notes
• Electra Store quality guarantee card
• Free shipping on orders over a set amount

Use Cases

Engineers use the MOC3021 optocoupler in AC load control. It is common in home automation, lighting systems, and industrial controls. Hobbyists build triac-based dimmers and relays. This part is also used in power supply feedback loops. It ensures safe signal isolation in many projects.

Typical buyers include electronics students and makers. They work on smart home projects with Arduino or Raspberry Pi. Professionals in factory automation also choose this MOC3021 optocoupler. It helps them design motor starters and heater controllers. Repair technicians use it to replace damaged optocouplers in older equipment. The MOC3021 optocoupler fits many standard circuits. It is a versatile component for any workbench.

Order the MOC3021 optocoupler from Electra Store today. We offer competitive prices and reliable stock. Upgrade your circuit with this trusted component. Get fast delivery and excellent support. Buy now for your next project!