EL817(S1)(TD)-G

Overview

The EL817(S1)(TD)-G is a single-channel transistor-output optocoupler manufactured by Everlight Electronics. It features an NPN phototransistor output and provides 5000 Vrms isolation voltage for enhanced safety in signal transmission applications. The device operates within a temperature range of -55°C to 110°C and utilizes a surface-mount package configuration suitable for automated assembly processes.

Feature Summary

• Provides high-voltage electrical isolation between input and output circuits
• Features a single-channel NPN phototransistor output structure
• Operates reliably across extended industrial temperature ranges

Applications

• Industrial control systems requiring galvanic isolation
• Signal transmission in measurement equipment
• Power supply feedback loop isolation

Procurement Notes

Verify the specific suffix designations against official Everlight documentation to ensure correct binning and packaging specifications. Confirm that the requested variant matches the exact isolation voltage and current transfer ratio requirements for your circuit design before finalizing procurement orders.

Selection Notes

Select this component when a surface-mount solution with high isolation voltage is required for DC input applications. Ensure the NPN phototransistor output characteristics align with the load requirements of the receiving circuitry and verify compatibility with standard reflow soldering profiles.

Part Context

This part belongs to the EL817-G series, which represents halogen-free variants of the widely used EL817 family. The series maintains the functional characteristics of traditional transistor-output optocouplers while adhering to environmental compliance standards for modern electronic manufacturing.

Replacement Considerations

Direct substitutes include other EL817-series variants from Everlight or equivalent transistor-output optocouplers from manufacturers such as Vishay or Sharp, provided pinout and isolation ratings match.