MOC3042TVM

Triac, SCR Output Optoisolators Overview

The MOC3042TVM is a zero-crossing triac output optocoupler manufactured by onsemi, formerly Fairchild Semiconductor. It features a single channel with a photo-triac output and integrated zero-crossing detection circuitry. The device provides an isolation voltage of 4170 Vrms and supports a peak repetitive off-state voltage of 400 V. Key electrical parameters include a maximum forward current of 60 mA, a typical forward voltage of 1.25 V, and a maximum trigger current of 10 mA. It operates within a temperature range of -40°C to +85°C and is housed in a 6-pin DIP package.

Triac, SCR Output Optoisolators Feature Summary

• Integrated zero-crossing detection circuitry for reduced electromagnetic interference during switching
• High isolation voltage rating ensuring safe separation between control and load circuits
• Photo-triac output designed for direct driving of triacs and SCRs in AC applications

Triac, SCR Output Optoisolators Applications

• Industrial motor speed controllers
• Solid state relays
• Lighting dimmer circuits
• Home automation systems

Triac, SCR Output Optoisolators Procurement Notes

Verify the manufacturer origin carefully, as the component was originally developed by Fairchild Semiconductor and is now produced by onsemi. Confirm that the specific suffix 'TVM' corresponds to the required packaging and compliance specifications. Ensure the procurement source provides valid datasheets matching the onsemi part number to avoid counterfeit or obsolete inventory risks.

Triac, SCR Output Optoisolators Selection Notes

Select this component when zero-crossing switching is required to minimize electrical noise and stress on AC loads. The 400 V output rating suits low-voltage AC applications. Consider the 6-DIP through-hole package for standard PCB layouts. Verify that the input current requirements align with the microcontroller or logic interface being used.

Triac, SCR Output Optoisolators Part Context

This device belongs to the MOC304x series of zero-crossing triac output optocouplers. It shares functional similarities with other members like the MOC3041 and MOC3043, differing primarily in the internal zero-crossing threshold voltage. The transition from Fairchild to onsemi production maintains the same pinout and electrical characteristics for design continuity.

Triac, SCR Output Optoisolators Replacement Considerations

Compatible substitutes include the MOC3041M and MOC3043M from onsemi. These alternatives share the same package and basic functionality but differ in the specific zero-crossing voltage thresholds. Verify that the alternative part's voltage ratings meet the application requirements before substitution.