EL1113-G

Overview

The EL1113-G is a single-channel optoisolator manufactured by Everlight Electronics Co Ltd. It features an infrared emitting diode coupled with an NPN phototransistor output that includes a base terminal for enhanced switching performance. The device provides high isolation voltage of 5000 Vrms and operates within a temperature range of -55°C to 110°C. Key electrical parameters include a maximum DC forward current of 60 mA, collector-emitter saturation voltage of 400 mV, and output voltage rating of 80 V. Typical rise and fall times are 2 µs and 3 µs respectively, supporting a maximum output current of 50 mA per channel.

Feature Summary

• Integrates an NPN phototransistor with a dedicated base terminal to improve switching speed and sensitivity compared to standard phototransistor outputs.
• Provides robust electrical isolation capability rated at 5000 Vrms between input and output circuits.
• Designed for surface mount technology using a compact 5-SOP package suitable for automated placement equipment.

Applications

• Industrial control systems requiring signal isolation
• Consumer appliances such as washing machines
• General purpose logic circuit interfacing

Procurement Notes

Verify the specific ordering suffix and packaging configuration when sourcing components. Confirm compliance with RoHS and REACH regulations as indicated in official documentation. Ensure the supplier provides valid datasheets matching the EL1113-G designation to avoid substitution errors. Check for any manufacturer-specific handling requirements during procurement.

Selection Notes

Select this component when high-speed switching and improved sensitivity are required in isolated circuits. The integrated base allows for external biasing to optimize response time. Consider the 5-SOP package size for space-constrained PCB layouts. Verify thermal management needs given the wide operating temperature range up to 110°C.

Part Context

This part belongs to Everlight's transistor output optocoupler family. It is designed for applications needing reliable galvanic isolation with faster response characteristics than basic phototransistor couplers. The inclusion of a base pin distinguishes it from similar models lacking this feature.

Replacement Considerations

Consult official substitution lists for compatible alternatives. Ensure replacement parts match the 5-SOP package and maintain equivalent isolation voltage ratings.

FAQ

What is the function of the base terminal on the phototransistor?

The base terminal allows for external biasing or pull-down connections, which can significantly reduce turn-off time and improve overall switching performance.

What is the typical switching speed of this optocoupler?

The typical rise time is 2 µs and the fall time is 3 µs under standard test conditions.