EL357NE-G

Overview

The EL357NE-G is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It integrates an infrared emitting diode and an NPN phototransistor detector within a compact SOP-4 surface-mount package. The device provides electrical isolation with a rated insulation voltage of 3750 Vrms. Key electrical parameters include a collector-emitter saturation voltage of 200 mV, a maximum collector current of 50 mA, and a load voltage rating of 80 V. The unit operates across a temperature range of -55°C to +110°C with a power dissipation capacity of 200 mW.

Feature Summary

• Provides high-voltage electrical isolation between input and output circuits using optical transmission.
• Features a compact four-pin SOP surface-mount package designed for dense PCB layouts.
• Ensures stable signal transfer through integrated infrared LED and NPN phototransistor components.

Applications

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

Procurement Notes

Verify the specific suffix 'NE' against the manufacturer's official datasheet to confirm pinout configuration and CTR binning. Ensure the selected variant matches the required packaging type, as tube and tape-and-reel options may exist within the broader EL357N family. Cross-reference safety certifications such as UL or VDE if the application demands specific regulatory compliance.

Selection Notes

Select this component when a robust, low-profile solution is needed for isolating low-power digital signals. The wide operating temperature range supports deployment in harsh industrial environments. Verify that the 50 mA collector current limit meets the load requirements of the receiving circuitry before finalizing the design.

Part Context

This part belongs to the EL357N-G series of transistor output optocouplers from Everlight Electronics. The series is engineered for general-purpose isolation tasks where space constraints and reliability are critical. The SOP-4 form factor allows for automated assembly processes common in modern electronics manufacturing.

Replacement Considerations

Consult official substitution lists for equivalents like the EL357N(C)(TA)-G or EL357N(B)(TA)-G. Confirm that alternative parts maintain identical pin configurations and isolation ratings to ensure direct compatibility without redesigning the host circuit board.