EL817(S1)(C)(TU)-G

Overview

The EL817(S1)(C)(TU)-G is a general-purpose optocoupler featuring an infrared emitting diode coupled to a phototransistor. It provides electrical isolation between input and output circuits with high voltage withstand capability. The device utilizes the SMD-4 surface mount package, designed for automated assembly processes. Key electrical characteristics include a collector-emitter breakdown voltage of 80V and a current transfer ratio suitable for logic interface applications. The component operates within a standard temperature range and meets RoHS compliance standards for environmental safety.

Feature Summary

• Integrated infrared LED and NPN silicon phototransistor for signal transmission
• Surface mount design compatible with standard PCB assembly techniques
• High isolation voltage rating for circuit protection
• RoHS compliant construction for environmental regulation adherence

Applications

• Signal isolation in industrial control systems
• Interface between microcontrollers and power circuits
• Switching applications in consumer electronics
• Data communication line isolation

Procurement Notes

Verify the specific suffix codes against the manufacturer's latest datasheet to ensure exact pinout and packaging configuration. Confirm that the requested quantity matches the reel size specified in official documentation. Check for any recent updates to the RoHS declaration or material composition reports required by your supply chain compliance protocols before finalizing orders.

Selection Notes

Choose this component when a compact surface mount solution is required for basic digital isolation tasks. Ensure the operating voltage and current requirements of the driven load fall within the phototransistor's rated limits. Consider the package dimensions and thermal characteristics if space constraints or heat dissipation are critical factors in the design layout.

Part Context

This part belongs to Everlight's EL817 series of optocouplers, widely used for general isolation purposes. The series offers various package options and electrical variants to suit different application needs. The EL817 family is known for its reliability and cost-effectiveness in isolating low-power signals across different potential domains in electronic circuits.

Replacement Considerations

Direct replacements may include other EL817 variants from Everlight or equivalent parts from manufacturers like Sharp or Vishay, provided pinouts and electrical ratings match. Verify compatibility with existing PCB footprints and ensure substitute components meet the same isolation voltage and current transfer ratio specifications.