EL816(S1)(C)(TA)

Overview

The EL816(S1)(C)(TA) is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It integrates an infrared emitting diode with a phototransistor detector in a compact 4-SMD surface-mount package. The device provides high isolation voltage of 5000 Vrms between input and output circuits, ensuring reliable signal transmission in electrically noisy environments. Key electrical parameters include a collector-emitter breakdown voltage of 80V minimum, a maximum forward current of 60mA, and a nominal current transfer ratio ranging from 100% to 200% at a forward current of 5mA. It operates within a temperature range of -55°C to +110°C.

Feature Summary

• High isolation voltage capability of 5000 Vrms for safe circuit separation
• Compact 4-pin surface mount design suitable for space-constrained applications
• Wide operating temperature range extending up to +110°C
• Compliant with RoHS standards and free from hazardous substances

Applications

• Industrial control systems requiring galvanic isolation
• Signal isolation in communication interfaces
• Power supply feedback loops
• Microcontroller input/output isolation

Procurement Notes

Verify the specific suffix (S1)(C)(TA) against the manufacturer's latest datasheet to confirm pinout orientation and tape/reel specifications. Ensure compliance with regional regulatory requirements such as RoHS and UL/VDE approvals before integration into final products. Cross-reference ordering codes with distributor catalogs to avoid packaging discrepancies.

Selection Notes

Select this component when a small form factor is required alongside standard transistor output characteristics. Consider the 100-200% CTR range for logic-level interfacing. Verify that the 5000 Vrms isolation meets the safety clearance and creepage distance requirements of the target application environment.

Part Context

This part belongs to the EL816 series of optocouplers, which are widely used for general-purpose isolation. The series offers both DIP and SMD packages. The (S1) designation typically indicates a specific lead pitch or body style variation compared to standard DIP versions, while (C) may denote a specific binning or testing criterion defined by Everlight.

Replacement Considerations

Direct replacements should be sought from the same EL816 family or equivalent generic transistor output optocouplers with matching 4-SMD footprints. Verify that substitute parts maintain the 5000 Vrms isolation rating and similar CTR ranges to ensure circuit compatibility without redesign.