MOC3021TVM

Triac, SCR Output Optoisolators Overview

The MOC3021TVM is a random-phase optoisolator featuring a phototriac output designed for triggering triacs and SCRs. It provides electrical isolation between control circuits and high-voltage AC loads. Key parameters include a peak off-state voltage of 400 V, an RMS on-state current of 100 mA, and a forward current of 60 mA. The device operates within a temperature range of -40°C to +85°C and offers an insulation voltage of 5300 Vrms. It is housed in a 6-pin DIP package suitable for through-hole mounting.

Triac, SCR Output Optoisolators Feature Summary

• Random-phase triggering capability without zero-crossing detection circuitry
• High isolation voltage rating for safe interface between low and high voltage domains
• Integrated phototriac output for direct drive of power switching devices

Triac, SCR Output Optoisolators Applications

• Solid state relay (SSR) input stages
• AC motor speed control circuits
• Lighting dimmer applications

Triac, SCR Output Optoisolators Procurement Notes

Verify the manufacturer origin, as Fairchild Semiconductor assets are now managed by onsemi. Confirm the specific suffix 'TVM' corresponds to the tape and reel packaging variant if required for automated assembly. Ensure the datasheet matches the exact voltage ratings and thermal characteristics needed for the target application environment.

Triac, SCR Output Optoisolators Selection Notes

Select this component when random-phase triggering is acceptable or required, as it lacks zero-crossing protection. Compare against MOC3021 variants with different suffixes for packaging differences. Ensure the load current does not exceed the 100 mA RMS rating of the internal phototriac. Consider thermal derating if operating near the maximum junction temperature limit.

Triac, SCR Output Optoisolators Part Context

This device belongs to the MOC3021 series of random-phase optoisolators. It is functionally similar to other parts in the family but distinguished by its specific packaging and manufacturing lineage from Fairchild Semiconductor, now part of onsemi. The series is widely used in industrial control and consumer electronics for AC power switching.

Triac, SCR Output Optoisolators Replacement Considerations

MOC3021TM is a comparable pin-to-pin alternative. Verify that substitute components maintain the same 400 V peak off-state voltage and 60 mA forward current specifications to ensure circuit compatibility.