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MOC3052SR2M

MOC3052SR2M Description

The MOC3052SR2M from onsemi is a high-performance optoisolator designed for Triac driving applications, offering robust isolation and reliable switching capabilities. It features a 600V off-state voltage and 4170Vrms isolation, making it suitable for high-voltage environments. The device operates with a 1.18V typical forward voltage (Vf) and a maximum DC forward current (If) of 60mA, ensuring efficient LED triggering. Unlike zero-crossing optoisolators, this model provides non-zero-crossing functionality, allowing for phase-angle control in AC loads. Its 220µA typical holding current (Ih) and 1kV/µs static dV/dt ensure stable performance in noisy electrical environments. Packaged in a surface-mount 6-pin SMD format and supplied in Tape & Reel (TR), it is ideal for automated assembly processes.

MOC3052SR2M Features

• Triac output with 600V off-state voltage for high-voltage switching.
• Non-zero-crossing design enables phase-angle control in AC applications.
• High isolation voltage (4170Vrms) for enhanced safety in industrial systems.
• Low LED trigger current (Ift max: 10mA) reduces power consumption.
• Robust noise immunity with 1kV/µs static dV/dt and 220µA holding current.
• Surface-mount (SMD) package for compact PCB designs.
• RoHS3 compliant and REACH unaffected, meeting environmental regulations.
• Approved by UR (Underwriters Laboratories) for reliability assurance.

MOC3052SR2M Applications

The MOC3052SR2M excels in applications requiring isolated Triac driving, such as:

• AC motor controls and solid-state relays (SSRs).
• Dimmer circuits for lighting systems, enabling smooth brightness adjustment.
• Industrial automation for switching inductive/resistive loads.
• Home appliances (e.g., washing machines, HVAC systems) requiring noise-resistant switching.
• Power supplies and inverters where high-voltage isolation is critical.

Conclusion of MOC3052SR2M

The MOC3052SR2M stands out as a high-reliability optoisolator for Triac-based AC load control, combining high-voltage tolerance, noise immunity, and compact SMD packaging. Its non-zero-crossing operation makes it ideal for phase-controlled dimming and motor speed regulation, while its UR certification ensures compliance with safety standards. For engineers designing industrial, consumer, or power electronics, this optoisolator delivers durable performance in demanding environments.