EL817(S1)(B)(TA)-V

Overview

The EL817(S1)(B)(TA)-V is a surface-mount transistor output optocoupler manufactured by Everlight Electronics Co Ltd. It features a single channel with an NPN phototransistor output and provides 5000 Vrms isolation voltage between input and output. The device utilizes a compact SMD package designed for tape and reel handling, facilitating automated assembly processes.

Feature Summary

• High isolation voltage capability of 5000 Vrms
• Compact surface-mount design suitable for automated placement
• Single-channel configuration with NPN phototransistor output

Applications

• General-purpose signal isolation in industrial control systems
• Power supply feedback loops requiring galvanic isolation
• Microcontroller interface circuits for level shifting and protection

Procurement Notes

Verify the specific suffix (S1)(B)(TA)-V against the official Everlight datasheet to confirm lead form and packaging type. Ensure compatibility with surface-mount reflow profiles. Confirm RoHS compliance status as per the latest manufacturer documentation before integration into production designs.

Selection Notes

Select this component when surface-mount technology is required for the EL817 series functionality. The S1 designation indicates specific lead bending for SMD mounting. Verify that the 5000 Vrms isolation rating meets the safety requirements of the target application circuit.

Part Context

This part belongs to the EL817 family of photocouplers from Everlight. The family offers various package options including DIP and SMD variants. The EL817 series is widely recognized for its reliability in providing electrical isolation between low-voltage control circuits and higher-voltage power stages.

Replacement Considerations

Direct pin-compatible replacements include other EL817 SMD variants such as EL817(S1)(A)(TA) or EL817(S1)(C)(TA), provided the current transfer ratio specifications align with the design requirements. Always verify electrical parameters against the original datasheet.