MOC3051TVM

Triac, SCR Output Optoisolators Overview

The MOC3051TVM is a Triac and SCR output optocoupler from onsemi, designed to isolate low-voltage logic circuits from high-voltage AC lines. It features a random phase triac driver suitable for 115 VAC and 240 VAC applications. Key electrical parameters include a peak blocking voltage of 600 V, an isolation voltage of 4170 Vrms, and a maximum forward current of 60 mA. The device operates within a temperature range of -40°C to +85°C and utilizes a 6-pin DIP package.

Triac, SCR Output Optoisolators Feature Summary

• Random phase triggering capability for precise control in AC line applications
• Enhanced static dv/dt performance to ensure reliable operation with inductive loads
• Low degradation IR emitting diode ensures excellent IFT stability over time

Triac, SCR Output Optoisolators Applications

• Isolating low-voltage logic from 115 VAC and 240 VAC power lines
• Control of large current triacs or SCRs in industrial equipment
• Solid-state relay (SSR) driver circuits requiring random phase switching

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific suffix 'TVM' corresponds to the tape and reel packaging configuration required for automated assembly processes. Confirm that the 6-DIP form factor matches the target PCB footprint. Ensure compliance with UL and VDE safety standards is documented for the final product integration. Check for any recent PCN updates regarding material composition or manufacturing site changes.

Triac, SCR Output Optoisolators Selection Notes

Select this component when random phase firing is required rather than zero-crossing detection. The 600 V blocking voltage suits standard mains voltage applications. Consider the enhanced static dv/dt rating if driving highly inductive loads where false triggering might occur. Verify that the 60 mA forward current limit aligns with the LED drive circuit capabilities.

Triac, SCR Output Optoisolators Part Context

This part belongs to the MOC305 series of Triac drivers. It differs from zero-crossing variants by allowing firing at any point in the AC cycle, which is essential for dimming and motor speed control applications. The T suffix indicates tube packaging in some contexts, while VM specifies the specific reel and lead finish configuration.

Triac, SCR Output Optoisolators Replacement Considerations

Direct substitutes include other random phase Triac drivers from the same family, such as the MOC3051M or MOC3051VM, provided the packaging and pinout are compatible. Cross-reference datasheets to ensure identical peak blocking voltage and isolation ratings before substitution.