EL3042S(TA)

Overview

The EL3042S(TA) is a single-channel Triac output optocoupler manufactured by Everlight Electronics Co Ltd. It integrates a GaAs infrared emitting diode with a zero-crossing detection triac driver. The device offers a minimum off-state peak voltage of 400 V and supports a maximum forward current of 60 mA. It provides high isolation capability with an insulation voltage of 5000 Vrms. The component operates within a temperature range of -55 °C to +100 °C and is housed in a surface mount package.

Feature Summary

• Integrated zero-voltage crossing circuitry for reduced electromagnetic interference
• High isolation voltage between input and output terminals
• Compliant with lead-free and RoHS environmental standards

Applications

• Solid-state relay circuits
• Motor control systems
• Lighting control applications

Procurement Notes

Verify the specific datasheet version and approval status (UL, VDE) directly with Everlight Electronics Co Ltd before integration. Confirm that the surface mount package dimensions match the target PCB footprint. Ensure compliance with local regulatory requirements regarding halogen-free materials and lead content as specified in the official product documentation.

Selection Notes

Select this component when zero-crossing switching is required to minimize electrical noise in AC load control applications. The 400 V blocking voltage suits low-to-medium voltage AC systems. Verify that the 60 mA input current capability aligns with the driving logic levels. Consider the operating temperature range if the environment exceeds standard industrial limits.

Part Context

This part belongs to the EL304X series of Triac & SCR Output Optocouplers from Everlight. The series shares common features such as high isolation voltage and zero-crossing functionality, differentiated primarily by the off-state peak voltage rating. The EL3042S(TA) specifically denotes the 400 V variant within this family.

Replacement Considerations

Direct substitutes include other EL304X series variants like EL3041S(TA) or EL3043S(TA), provided the voltage ratings meet the application requirements. Cross-referencing pinouts and thermal characteristics is essential when replacing with components from different manufacturers.