EL3051S(TB)-V

Overview

The EL3051S(TB)-V is a 6-pin surface mount random-phase triac driver photocoupler manufactured by Everlight. It integrates a GaAs infrared emitting diode with a monolithic silicon photo Triac for AC load control in 115 to 240 VAC applications. Key electrical parameters include a peak breakdown voltage of 600V, an isolation voltage (Viso) of 5000 Vrms, and a static dV/dt rating of 1kV/µs.

Feature Summary

• Random-phase output design suitable for zero-crossing or non-zero-crossing switching applications
• High isolation capability between input and output circuits
• Compact surface mount package optimized for automated assembly

Applications

• Solenoid and valve controls
• Lamp ballasts and incandescent lamp dimmers
• Static AC power switches
• Interfacing microprocessors to 115 to 240Vac peripherals

Procurement Notes

Verify the specific suffix 'TB' against the manufacturer's current datasheet to confirm pinout orientation and tape-and-reel specifications. Ensure compliance requirements such as UL, VDE, and REACH are documented for the final product integration. Cross-reference the exact part number to distinguish from similar variants like EL3051S(TA)-V.

Selection Notes

Select this component when a surface mount solution is required for AC power switching. The 600V peak breakdown voltage supports standard mains voltages. Consider the random-phase characteristic for general purpose loads rather than precise zero-crossing timing. Verify thermal management needs for the SMD package in high-density designs.

Part Context

This device belongs to the EL305X series of random-phase triac drivers. It shares functional similarities with through-hole variants like the EL3051 but utilizes a surface mount footprint. The series is designed for interfacing electronic controls with power triacs in resistive and inductive load scenarios.

Replacement Considerations

Direct substitutes within the same family include EL3051S(TA)-V, which offers identical electrical characteristics but may differ in pin configuration or reel packaging. Always verify mechanical dimensions and pin assignments before swapping.