ELD205-V

Overview

The ELD205-V is a dual-channel phototransistor output optocoupler manufactured by Everlight Electronics Co., Ltd. It integrates an infrared emitting diode and two phototransistors in an 8-pin SOP package to provide electrical isolation between input and output circuits. Key specifications include a maximum isolation voltage of 3750 Vrms, a collector-emitter voltage rating of 80V, and a DC forward current limit of 60 mA. The device operates within a temperature range of -55°C to 110°C and features a typical turn-on time of 5µs and turn-off time of 4µs.

Feature Summary

• Dual-channel configuration for simultaneous signal isolation
• High insulation voltage capability for safety compliance
• Fast switching response times suitable for digital logic
• Wide operating temperature range for industrial environments

Applications

• Digital logic transmission and level shifting
• Power supply control and switching circuits
• Electrical isolation between system components
• Impedance transformation in communication interfaces

Procurement Notes

Verify the specific suffix (TA, TB, or none) against the required reel quantity and tape-and-reel specifications. Confirm moisture sensitivity handling requirements prior to assembly. Ensure the ordering part number matches the exact pinout and packaging format needed for the target PCB design. Cross-reference with official Everlight documentation to validate availability and lead times.

Selection Notes

Select this component when dual-channel isolation is required within a compact surface-mount footprint. Consider the 3750 Vrms isolation rating for applications demanding robust safety barriers. Evaluate the 80V output voltage limit to ensure compatibility with downstream logic levels. Verify that the 60 mA forward current requirement fits within the driving circuit's capabilities.

Part Context

The ELD205-V belongs to Everlight's family of transistor-output optocouplers designed for general-purpose isolation. It shares architectural similarities with variants like ELD205(TA) and ELD205(TB)-V, differing primarily in packaging details and manufacturing revisions. This series supports applications requiring reliable galvanic isolation in space-constrained designs.

Replacement Considerations

Direct substitutes may include other dual-channel phototransistor optocouplers from manufacturers such as Vishay or Broadcom, provided they match the 8-SOP package and 3750 Vrms isolation rating. Verify pin compatibility and electrical parameters before substitution.