ELD207(TA)

Overview

The Everlight ELD207(TA) is a dual-channel transistor output optocoupler housed in an 8-SOP package. It provides 3750Vrms isolation voltage and supports NPN phototransistor outputs with a maximum collector-emitter voltage of 80V. The device features a typical forward voltage of 1.2V and a maximum DC forward current of 60mA. Current transfer ratios range from 100% to 200% at 10mA input. Switching characteristics include typical turn-on/turn-off times of 5µs/4µs and rise/fall times of 1.6µs/2.2µs. It operates within a temperature range of -55°C to 110°C.

Feature Summary

• Dual-channel configuration for simultaneous signal isolation
• High insulation voltage rating for safety-critical applications
• Fast switching speeds suitable for digital communication
• Wide operating temperature range for industrial environments

Applications

• Industrial control systems requiring galvanic isolation
• Signal transmission between microcontrollers and peripheral devices
• Power supply feedback loops for voltage regulation
• Data acquisition systems with noise immunity requirements

Procurement Notes

Verify the specific suffix (TA) against the manufacturer's latest datasheet to confirm pinout and packaging details. Check RoHS compliance status as regulatory requirements may vary by region. Confirm availability through authorized distributors, noting that some variants may be discontinued or subject to long lead times. Ensure the selected package matches your PCB footprint requirements.

Selection Notes

Select this component when dual-channel isolation is required in a compact surface-mount package. Consider the 3750Vrms isolation rating for safety standards compliance. Evaluate the CTR range (100%-200%) to ensure sufficient gain for your load requirements. Verify that the 80V output voltage rating exceeds your circuit's maximum operating voltage. Check thermal performance if operating near the upper temperature limit.

Part Context

This part belongs to Everlight's ELD20x series of transistor output optocouplers. The series offers various channel counts and isolation voltages. The ELD207 specifically provides dual-channel functionality in an SO-8 package. This series is designed for general-purpose isolation applications where size and performance are balanced. Other members may differ in channel count or electrical ratings.

Replacement Considerations

Check for direct replacements within the ELD20x family. Verify pin compatibility and electrical parameters before substitution. Consider alternative manufacturers offering similar dual-channel SOP-8 optocouplers with comparable isolation ratings and switching speeds.