MOC3033G

Triac, SCR Output Optoisolators Overview

The MOC3033G is a six-pin optically coupled isolator from the MOC304 series, manufactured by Isocom Components. It integrates a gallium arsenide infrared emitting diode with a light-activated silicon bilateral triac. The device provides zero-crossing switching capabilities for AC loads. Key electrical parameters include an isolation voltage of 5000Vrms and an off-state voltage capability of 250V. It operates within a temperature range of -40°C to 100°C and features a maximum forward voltage of 1.4V. The component is housed in a DIP package and supports through-hole mounting.

Triac, SCR Output Optoisolators Feature Summary

• Zero-crossing detection for reduced electromagnetic interference during AC switching
• Galvanic isolation via infrared LED and silicon triac structure
• High off-state voltage capability suitable for safety-critical applications

Triac, SCR Output Optoisolators Applications

• AC load switching in industrial control systems
• Solid state relay driver circuits
• Lighting control modules requiring low EMI

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific suffix 'G' corresponds to lead-free compliance requirements if mandated by your assembly process. Confirm that the 6-pin DIP package aligns with your PCB footprint specifications. Ensure the 5000Vrms isolation rating meets the safety standards required for your target market, such as UL or VDE certifications listed in official documentation.

Triac, SCR Output Optoisolators Selection Notes

Select this component when zero-crossing functionality is required to minimize inrush current and noise in AC circuits. The 250V off-state voltage defines the maximum peak voltage the output can block. Consider the 1.4V forward voltage drop for input drive circuit design. Verify thermal management needs given the -40°C to 100°C operating range.

Triac, SCR Output Optoisolators Part Context

This part belongs to the MOC304 series of optocouplers designed for AC power control. It shares the basic opto-isolation architecture with other members but is distinguished by its zero-crossing trigger mechanism. This feature differentiates it from random-phase variants within the same family, making it suitable for applications where switching timing relative to the AC waveform is critical.

Triac, SCR Output Optoisolators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Cross-referencing should be performed using official manufacturer substitution guides to ensure compatibility of pinout, isolation voltage, and triggering characteristics.