EL1118-G

Overview

The EL1118-G is a single-channel phototransistor output optocoupler manufactured by Everlight Electronics. It features an NPN phototransistor output and provides electrical isolation with a rated voltage of 5000 Vrms. The device supports a collector-emitter voltage of 80V and a continuous output current of 50mA per channel. Typical switching characteristics include a rise time of 2µs and a fall time of 3µs. The component is housed in a 5-pin SOP package designed for surface mount applications.

Feature Summary

• Provides high-voltage electrical isolation between input and output circuits
• Utilizes an NPN phototransistor for signal transmission
• Designed for surface mount technology compatibility

Applications

• General purpose signal isolation
• Microprocessor system interfacing
• Solid-state relay drivers

Procurement Notes

Verify the specific suffix (e.g., TA) if reel packaging or specific moisture sensitivity levels are required, as standard listings may vary. Confirm the 5-pin SOP package type matches the target PCB footprint. Ensure compliance with RoHS directives if applicable to the manufacturing environment. Cross-reference the exact part number with official Everlight documentation to confirm pinout and isolation ratings before finalizing procurement.

Selection Notes

Select this component when a single-channel transistor output is needed for moderate speed applications. The 5000 Vrms isolation rating suits general industrial and consumer electronics. Consider the 2-18 µs rise time range for timing-sensitive designs. Verify that the 80V output voltage capability meets the load requirements. Ensure the SOP package fits the available board space constraints.

Part Context

The EL1118-G belongs to Everlight's family of phototransistor output optocouplers. These devices are engineered to transfer electrical signals between isolated circuits using light. The series typically offers compact footprints suitable for modern surface mount assembly processes. They serve as critical components for breaking ground loops and protecting sensitive control circuitry from high-voltage transients.

Replacement Considerations

Check for direct equivalents such as the EL1118(TA)-G for specific packaging variations. Verify pinout compatibility with existing designs before substituting. Ensure replacement parts maintain the same 5000 Vrms isolation and 50mA output current specifications.