MOC3043G

Triac, SCR Output Optoisolators Overview

The MOC3043G is a single-channel optoisolator from the MOC304 series, featuring a zero-crossing triac output. It utilizes a gallium arsenide infrared LED for input and a triac photodetector for output. The device provides an isolation voltage of 5300Vrms and supports a peak repetitive off-state voltage of 400V on the output side. It operates within a temperature range of -40°C to 100°C and requires a maximum forward voltage of 1.4V with a maximum input current of 50mA. The component is available in a 6-pin DIP package.

Triac, SCR Output Optoisolators Feature Summary

• Zero-crossing detection capability for reduced electromagnetic interference during switching
• High isolation voltage rating ensuring safe separation between control and power circuits
• Integrated triac output stage designed for direct AC load triggering

Triac, SCR Output Optoisolators Applications

• Solid-state relay driver circuits
• AC power switching applications
• Industrial motor control systems
• Lighting dimmer controls

Triac, SCR Output Optoisolators Procurement Notes

Verify that the specific part number matches the required package type and output configuration. Confirm compliance with relevant safety certifications such as UL and VDE if used in regulated equipment. Ensure the supplier provides authentic components from authorized channels to guarantee performance reliability and electrical parameter accuracy.

Triac, SCR Output Optoisolators Selection Notes

Select this component when zero-crossing switching is required to minimize noise in AC line applications. Consider the 400V output voltage rating and 5300Vrms isolation level against circuit requirements. Evaluate the low trigger current requirement relative to the driving microcontroller or logic gate capabilities.

Triac, SCR Output Optoisolators Part Context

This device belongs to the MOC304 series of zero-crossing triac output optocouplers manufactured by Isocom Components. The series is designed for general-purpose AC switching applications where low noise and high reliability are essential. The MOC3043G variant specifically offers a 6-pin DIP configuration suitable for through-hole mounting.

Triac, SCR Output Optoisolators Replacement Considerations

The VO4154M-X006 is identified as a substitute option providing similar functionality with comparable trigger current characteristics.