MOC3052S-TA1

Triac, SCR Output Optoisolators Overview

The MOC3052S-TA1 is a single-channel Triac and SCR output optocoupler manufactured by Lite-On. It features an SMD-6 (SOP-6) package with zero-crossing circuitry for low EMI switching. Key electrical parameters include a maximum forward current of 50 mA, a forward voltage of 1.2 V, and a power dissipation of 330 mW. The device provides an isolation voltage of 5000 VRMS and supports a peak off-state voltage of 600 V. It operates within a temperature range of -40°C to +100°C.

Triac, SCR Output Optoisolators Feature Summary

• Integrates a zero-crossing detection circuit to minimize electromagnetic interference during AC line switching.
• Provides high electrical isolation between input and output terminals for safety compliance.
• Utilizes a gallium arsenide infrared LED coupled with a light-sensitive triac for reliable signal transmission.

Triac, SCR Output Optoisolators Applications

• Solid-state relay driver circuits
• AC motor control systems
• General-purpose AC load switching

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific suffix 'TA1' against the manufacturer's latest datasheet to confirm tape-and-reel packaging specifications and pinout orientation. Ensure that the zero-crossing functionality aligns with the target application's noise requirements, as non-zero-crossing variants exist within the same product family. Cross-reference safety certifications such as UL or VDE if used in mains-connected equipment.

Triac, SCR Output Optoisolators Selection Notes

Select this component when low electromagnetic interference is critical due to its integrated zero-crossing feature. The SOP-6 surface-mount package facilitates automated assembly processes. Consider the 600 V off-state voltage rating for compatibility with standard 120 VAC and 240 VAC line voltages. Verify thermal management requirements given the 330 mW power dissipation limit in compact PCB layouts.

Triac, SCR Output Optoisolators Part Context

This part belongs to the MOC305x series of Triac output optocouplers from Lite-On. It is designed for general-purpose AC switching applications requiring galvanic isolation. The series includes variations with and without zero-crossing circuits, offering flexibility for different noise sensitivity profiles in industrial and consumer electronics designs.

Triac, SCR Output Optoisolators Replacement Considerations

Direct substitutes include other zero-crossing Triac optocouplers with compatible voltage ratings and packages, such as the MOC3051M or MOC3053M. Verify pinout compatibility and trigger current specifications before substitution. Non-zero-crossing variants like the MOC3021 series are functionally distinct and require circuit redesign.