EL3022S1(TA)

Overview

The EL3022S1(TA) is a random-phase triac output optoisolator manufactured by Everlight Electronics Co Ltd. It features a single channel with a 6-SMD surface-mount package. The device provides an isolation voltage of 5000 Vrms and supports a maximum forward current of 60 mA. It operates within a temperature range of -55°C to +100°C. Key electrical parameters include a peak repetitive off-state voltage of 400 V, a holding current of 250 µA typical, and a static dV/dt of 100 V/µs typical. The component is designed for zero-crossing or random-phase triac driver applications.

Feature Summary

• Integrates an infrared LED emitter with a triac detector for galvanic isolation
• Supports random-phase triggering for AC load control applications
• Provides high insulation capability with 5000 Vrms isolation voltage
• Features a compact 6-SMD surface-mount package design

Applications

• Solid state relays
• Motor control circuits
• Lighting dimmer switches
• AC power switching modules

Procurement Notes

Verify the specific suffix designation against the manufacturer's latest documentation to ensure compatibility with required packaging options such as tape and reel or cut tape. Confirm that the selected variant meets all necessary safety certifications including UL, VDE, and CSA for the intended end-use environment. Cross-reference the part number with official distributor catalogs to validate current availability status and lead times prior to finalizing procurement plans.

Selection Notes

Select this component when random-phase triac driving is required rather than zero-crossing functionality. Ensure the application voltage does not exceed the 400 V peak repetitive off-state rating. Verify that the system operating temperature remains within the specified -55°C to +100°C range. Consider the 6-SMD footprint constraints during PCB layout design to accommodate the surface-mount package dimensions accurately.

Part Context

This component belongs to the EL3022 series of optocouplers from Everlight Electronics. It is distinct from zero-crossing variants like the EL3021, offering random-phase triggering capabilities. The S1(TA) suffix indicates specific packaging and handling characteristics defined by the manufacturer. It serves as a direct interface between low-voltage control logic and high-voltage AC loads in industrial and consumer electronics.

Replacement Considerations

Consult official substitution lists for equivalent random-phase triac output optocouplers. Verify pinout compatibility and electrical parameter margins before replacing the component. Ensure any substitute part maintains the same 5000 Vrms isolation rating and 6-SMD package form factor.