EL817(S)(TA)-VG

Overview

The EL817(S)(TA)-VG is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It integrates an infrared emitting diode with an NPN phototransistor detector, providing electrical isolation between input and output circuits. The device features a high isolation voltage of 5000 Vrms and operates within a temperature range of -55°C to +110°C. It is available in surface-mount packaging formats including cut tape and reel configurations.

Feature Summary

• Integrates an infrared LED coupled to an NPN phototransistor for signal transmission
• Provides high-voltage electrical isolation between input and output terminals
• Designed for compact surface-mount applications with small outline dimensions

Applications

• Industrial control systems requiring galvanic isolation
• Signal isolation in microcontroller interfacing circuits
• Power supply feedback loop isolation

Procurement Notes

Verify the specific suffix configuration against official Everlight documentation to ensure compatibility with required insulation standards and package type. Confirm availability status as distribution channels may list this component as discontinued or limited stock depending on region. Cross-reference datasheet revisions to validate current manufacturing compliance and environmental certifications before integration into final designs.

Selection Notes

Select this component when a surface-mount transistor output optocoupler with high isolation voltage is required. Ensure the design accommodates the specified operating temperature range and forward current limits. Verify that the NPN phototransistor output characteristics match the load requirements of the receiving circuitry. Consider mechanical footprint constraints associated with the SMD package variant.

Part Context

This part belongs to the EL817 series of optocouplers from Everlight Electronics, which are widely used for general-purpose isolation tasks. The series includes various package options such as DIP and SMD variants. The VG suffix typically indicates specific compliance or packaging attributes defined by the manufacturer. This component serves as a standard solution for isolating low-power digital signals across different voltage domains.

Replacement Considerations

Direct substitutes include other EL817 series variants such as EL817(S)(C)(TA)-VG or EL817(S1)(C)(TA)-VG, provided pinout and electrical parameters remain compatible. Verify equivalent isolation ratings and current transfer ratios when selecting alternative manufacturers' components.