EL1018(TA)-G

Overview

The EL1018(TA)-G is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It features an NPN phototransistor output and operates with a maximum collector-emitter voltage of 80 V. The device provides high isolation capability with a rated isolation voltage of 5000 Vrms. It is housed in a compact 4-pin SOP package with a long creepage distance, designed for surface mount applications. The component supports a continuous forward current of 60 mA and offers a typical current transfer ratio range to ensure reliable signal transmission across the isolation barrier.

Feature Summary

• High isolation voltage rating of 5000 Vrms between input and output circuits
• Compact 4-pin SOP package with a low profile and extended creepage distance
• NPN phototransistor output configuration for digital signal isolation
• Compliant with halogen-free environmental standards

Applications

• General-purpose digital signal isolation in industrial control systems
• Interface circuits for microcontrollers and logic devices
• Power supply feedback loops requiring galvanic isolation
• Solid-state relay driver circuits

Procurement Notes

Verify the specific suffix designation (TA) against the required datasheet revision, as packaging or minor parameter variations may exist between sub-types. Confirm RoHS compliance status and halogen-free certification requirements with the supplier prior to ordering. Ensure the procurement channel provides original manufacturer documentation to validate authenticity and traceability for quality assurance purposes.

Selection Notes

Select this component when a cost-effective, single-channel isolation solution is required for low-speed digital signals. The NPN output type is suitable for sinking current loads. Consider the 80 V collector-emitter voltage limit for load compatibility. The SOP-4 package is appropriate for space-constrained PCB designs where standard DIP packages cannot fit. Verify thermal dissipation capabilities if operating near maximum current limits.

Part Context

The EL1018 series is a widely used family of optocouplers from Everlight Electronics, known for balancing performance and cost. The TA variant specifically denotes the SOP-4 package with long creepage, distinguishing it from other package options like DIP-4. This part serves as a standard isolation component in consumer electronics, telecommunications, and general industrial equipment where basic signal isolation is necessary.

Replacement Considerations

Direct pin-to-pin replacements include the EL1018(TB)-G and EL1018(TC)-G, which share the same electrical characteristics but differ in package style or creepage specifications. Other compatible alternatives from different manufacturers must be verified for matching isolation voltage, CTR ranges, and package dimensions to ensure functional equivalence without redesigning the host circuit.