ELD206

Overview

The ELD206 is a dual-channel phototransistor output optocoupler manufactured by Everlight Electronics Co., Ltd. It integrates an infrared emitting diode and two NPN phototransistors in an 8-pin SOP package. The device provides electrical isolation with a rated insulation voltage of 3750 Vrms. It supports a maximum collector-emitter voltage of 80V for the output transistors. The component is designed for signal transmission in applications requiring galvanic isolation between input and output circuits.

Feature Summary

• Dual-channel configuration providing independent signal paths within a single package
• High-voltage isolation capability suitable for separating high-potential circuits from low-voltage control logic
• NPN phototransistor output structure compatible with standard digital and analog interface requirements

Applications

• Signal isolation in industrial communication interfaces
• Power supply feedback loops for circuit protection
• Microcontroller input/output isolation in embedded systems

Procurement Notes

Verify the specific suffix (e.g., -V, TA) against the required RoHS compliance or tape-and-reel packaging format. Confirm the active status as some variants may be discontinued. Ensure the 8-SOP footprint matches the target PCB design. Cross-reference the datasheet revision to confirm pinout consistency before finalizing procurement orders.

Selection Notes

Select this component when dual-channel isolation is required in a compact surface-mount form factor. The 3750 Vrms rating determines suitability for mains-connected equipment. Verify that the NPN output type aligns with the pull-up resistor configuration of the receiving circuit. Consider thermal management requirements based on the SOP package power dissipation limits during continuous operation.

Part Context

The ELD206 belongs to the ELD20X series of dual-channel optocouplers from Everlight. This series shares the 8-pin SOP physical dimensions but varies in internal chip specifications. It serves as a functional alternative to other dual-channel transistor output couplers in the industry, specifically targeting cost-sensitive applications requiring moderate speed and high isolation voltage.

Replacement Considerations

Direct substitutes include other dual-channel 8-SOP phototransistor optocouplers with matching 3750 Vrms isolation and 80V output ratings. Verify pin-to-pin compatibility and CTR (Current Transfer Ratio) characteristics before substitution. Check for equivalent safety certifications if used in regulated end-products.