MOC3051M

Triac, SCR Output Optoisolators Overview

The MOC3051M is a 6-pin DIP random-phase triac driver optocoupler from onsemi. It integrates a GaAs infrared emitting diode with a non-zero crossing silicon bilateral AC switch. Key electrical parameters include a peak off-state 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 features a typical forward voltage of 1.18 V.

Triac, SCR Output Optoisolators Feature Summary

• Integrates a GaAs infrared LED optically coupled to a silicon bilateral AC switch for reliable signal transmission.
• Provides high isolation capability with a rated insulation voltage of 4170 Vrms between input and output circuits.
• Supports random-phase triggering without zero-crossing circuitry, allowing immediate response to control signals.

Triac, SCR Output Optoisolators Applications

• Solid-state relay drivers
• AC motor control systems
• Industrial process control interfaces

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific ordering suffix matches the required package type and lead time requirements. Confirm that the component complies with RoHS standards and relevant safety certifications such as UL 1577 or IEC 60747-5-5 for your target market. Ensure the supplier provides valid traceability documentation for quality assurance purposes.

Triac, SCR Output Optoisolators Selection Notes

Select this component when random-phase triac firing is required rather than zero-crossing switching. Consider the 600 V peak off-state voltage limit for load compatibility. Evaluate the thermal management needs given the 330 mW power dissipation rating and the operating temperature range constraints for harsh environments.

Triac, SCR Output Optoisolators Part Context

This device belongs to the MOC302XM series of optoisolators designed for AC power control applications. It shares architectural similarities with the MOC3052M and MOC3053M, differing primarily in internal gate trigger characteristics. The family is standardized for through-hole mounting in 6-pin DIP packages.

Triac, SCR Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify functional equivalence carefully if considering alternatives from other manufacturers, specifically regarding peak voltage ratings and isolation specifications.