EL357NA(TA)-G

Overview

The EL357NA(TA)-G is a single-channel phototransistor output optocoupler from Everlight Electronics. It integrates an infrared emitting diode and a phototransistor detector within a compact 4-pin SOP surface-mount package. The device provides electrical isolation with a rated isolation voltage of 3750 Vrms. Key electrical parameters include a forward voltage of 1.2V, a collector-emitter saturation voltage of 100mV at specified conditions, and a DC collector current capability of 50mA. The unit supports a load voltage of 80V and operates across a temperature range of -55°C to +110°C.

Feature Summary

• Provides high-voltage electrical isolation between input and output circuits using infrared photoelectric conversion.
• Features a compact four-lead small outline package designed for dense printed circuit board layouts.
• Delivers high current transfer ratio performance suitable for robust signal transmission applications.

Applications

• Industrial control systems requiring signal isolation
• Communication equipment interface circuits
• Power supply feedback loop isolation

Procurement Notes

Verify the specific suffix designation against official Everlight documentation to confirm exact binning or packaging specifications. Ensure compatibility with standard SOP-4 footprints during PCB design. Confirm RoHS compliance status through the manufacturer's latest product release notes before finalizing procurement orders.

Selection Notes

Select this component when high isolation voltage and compact form factor are required for single-channel signal transmission. Consider the operating temperature range and current transfer ratio requirements relative to the target application environment. Evaluate the surface-mount package constraints against available board space and assembly capabilities.

Part Context

This part belongs to the EL357N-G series of transistor output optocouplers manufactured by Everlight Electronics. The series is characterized by its ultra-small footprint and reliability in industrial environments. It serves as a general-purpose isolation device for digital and analog signal coupling where galvanic separation is necessary.

Replacement Considerations

Cross-reference with other EL357N variants such as EL357N(C)(TA)-G or EL357N(B)(TA)-G for potential pin-compatible alternatives. Verify that substitute parts match the required isolation voltage and current transfer ratio specifications.