EL357NA(TA)-VG

Overview

The EL357NA(TA)-VG is a single-channel phototransistor output optocoupler manufactured by Everlight Electronics Co Ltd. It utilizes an infrared LED coupled to a silicon phototransistor within a compact SOP-4 surface-mount package with a 2.54mm pitch. The device provides electrical isolation between input and output circuits with a rated isolation voltage of 3750Vrms. Key electrical parameters include a maximum collector-emitter voltage of 80V, a maximum DC forward current of 50mA, and a typical forward voltage of 1.2V. The unit supports a wide operating temperature range from -55°C to 110°C and features a typical rise time of 3µs and fall time of 4µs.

Feature Summary

• Provides high-voltage electrical isolation via infrared light transmission between input and output circuits.
• Integrates an infrared emitter and phototransistor for efficient signal coupling in a compact form factor.
• Ensures stable operation across a wide industrial temperature range without performance degradation.

Applications

• Industrial control systems requiring circuit isolation
• Communication equipment signal transmission
• Power supply feedback loop isolation

Procurement Notes

Verify the specific suffix configuration against the official Everlight datasheet to ensure compatibility with required isolation ratings and packaging standards. Confirm RoHS compliance status and moisture sensitivity level requirements prior to integration into the manufacturing process.

Selection Notes

Select this component when a small footprint SOP-4 package is required for single-channel isolation. Ensure the application demands an isolation voltage of at least 3750Vrms and can accommodate the specified switching speeds. Verify that the load voltage does not exceed the 80V collector-emitter rating.

Part Context

This part belongs to the EL357N-G series, designed for applications needing reliable optical isolation in space-constrained environments. The series is characterized by its ultra-small SOP package and robust performance metrics suitable for general-purpose digital signal isolation tasks.

Replacement Considerations

Direct substitutes may include other single-channel phototransistor optocouplers in SOP-4 packages with comparable isolation voltages and pin configurations. Cross-reference pinouts and thermal characteristics before substitution.

FAQ

What is the maximum isolation voltage supported by this device?

The device supports a maximum isolation voltage of 3750Vrms.

Does this component support surface mount technology?

Yes, it is housed in a 4-SOP surface-mount package.