EL816(S1)(B)(TU)

Overview

The EL816(S1)(B)(TU) is a single-element transistor output optocoupler manufactured by Everlight Electronics. It features an NPN phototransistor output and provides high isolation voltage of 5000 Vrms between input and output circuits. The device supports surface mount installation in a compact 4-SMD package with a gull-wing configuration. It operates within a temperature range of -55°C to +110°C and includes safety approvals such as UL and VDE.

Feature Summary

• High isolation voltage capability between input and output channels
• Compact surface mount design suitable for space-constrained applications
• Wide operating temperature range for diverse environmental conditions

Applications

• Signal isolation in industrial control systems
• Power supply feedback loops
• Microcontroller interface circuits

Procurement Notes

Verify the specific suffix codes against the official Everlight datasheet to ensure correct pinout, packaging type, and compliance status. Confirm that the requested variant matches the required isolation voltage and current transfer ratio specifications for your circuit design before ordering.

Selection Notes

Select this component when high voltage isolation is required in a small form factor. Ensure the input forward current and output collector-emitter voltage ratings align with the system's electrical requirements. Consider the thermal management needs given the wide operating temperature range.

Part Context

This part belongs to the EL816 series of transistor output optocouplers from Everlight. These devices are widely used for galvanic isolation in electronic circuits. The S1 designation typically indicates a specific package variation or creepage distance requirement within the product line.

Replacement Considerations

Check for direct substitutes like the EL817 series or other generic 4-pin transistor optocouplers. Verify pin compatibility and electrical parameters such as CTR and isolation voltage before substituting.