EL1114(TA)-VG

Overview

The EL1114(TA)-VG is a transistor output optocoupler manufactured by Everlight Electronics. It features a single channel with an NPN phototransistor output and includes a base terminal for enhanced switching speed control. The device provides high isolation capability with a rated insulation voltage of 5000 Vrms. It is housed in a 5-pin long creepage SOP package, designed for surface mount applications. The component supports a collector-emitter voltage up to 80V and operates within standard industrial temperature ranges.

Feature Summary

• Integrated base terminal on the phototransistor allows for external biasing to improve turn-off time and switching performance.
• High dielectric isolation strength ensures reliable signal transmission across isolated circuits.
• Long creepage distance in the SOP-5 package design enhances safety compliance for high-voltage applications.

Applications

• Industrial automation control systems requiring galvanic isolation
• Power supply feedback loops for voltage regulation
• Microcontroller interface circuits for noise immunity

Procurement Notes

Verify the specific suffix VG against the manufacturer's latest datasheet to confirm material composition and RoHS compliance status. Ensure the ordering code matches the exact package variant required for your PCB footprint. Cross-reference the part number with official distributor catalogs to confirm current availability and lead times before finalizing procurement plans.

Selection Notes

Select this component when base-controlled switching speed is critical for the application. The inclusion of a base pin distinguishes it from standard phototransistor optocouplers, offering faster response characteristics. Ensure the circuit design accommodates the base terminal connection to utilize its full performance potential effectively.

Part Context

This device belongs to the EL111x series of transistor output optocouplers from Everlight. It shares similar packaging and isolation ratings with models like the EL1112 and EL1119 but differs in internal configuration and specific electrical parameters. The TA designation typically indicates specific tape and reel packaging or material specifications defined by the manufacturer.

Replacement Considerations

Direct substitutes may include other 5-pin SOP optocouplers with base terminals such as the PC817 variants with base pins, though electrical parameters must be verified. Check compatibility with existing PCB footprints and ensure isolation voltage ratings meet or exceed the original design requirements.