HCPL2631S

Logic Output Optoisolators Overview

The HCPL2631S is an obsolete dual-channel high-speed logic gate output optocoupler manufactured by onsemi. It features a data rate of 10 MBit/s and offers superior common mode transient immunity of 5 kV/µs. The device operates within a temperature range of -40°C to +85°C and utilizes an 8-pin DIP package. It provides galvanic isolation with a minimum isolation voltage of 2500 Vrms. The component is designed for applications requiring fast signal transmission between isolated circuits, though it is no longer recommended for new designs.

Logic Output Optoisolators Feature Summary

• Dual-channel architecture for simultaneous signal isolation
• High-speed operation supporting 10 MBit/s data rates
• Internal noise shield for enhanced common mode rejection
• Logic gate output configuration for direct digital interfacing

Logic Output Optoisolators Applications

• Industrial communication systems requiring galvanic isolation
• Data acquisition systems with noisy environments
• Microprocessor system interface isolation
• Signal transmission in automated control equipment

Logic Output Optoisolators Procurement Notes

Verify the HCPL2631S status as obsolete before procurement planning. Confirm availability through authorized distributors or surplus suppliers. Ensure design modifications accommodate the recommended replacement series if long-term supply stability is required. Check RoHS compliance documentation for specific manufacturing dates. Validate pinout compatibility during integration into existing PCB layouts.

Logic Output Optoisolators Selection Notes

Select this component only for legacy system maintenance or repair where original specifications must be matched. Evaluate the transition to the HCPL26xxM series for new projects due to obsolescence. Consider the 10 MBit/s speed limit when designing high-frequency interfaces. Assess the 8-pin DIP package constraints against available board space. Verify thermal performance within the specified operating temperature range.

Logic Output Optoisolators Part Context

The HCPL2631S belongs to onsemi's family of high-speed logic gate output optocouplers. It shares architectural similarities with the HCPL2630 but differs in channel count and packaging options. This series was widely used in industrial applications before being superseded by newer generations. The S suffix typically denotes a specific tape-and-reel or tube variant depending on the manufacturer's coding standards at the time of production.

Logic Output Optoisolators Replacement Considerations

The HCPL2631SM is listed as an available substitute. The HCPL26xxM series is recommended as the modern equivalent. Verify pin compatibility and electrical parameters when transitioning to these alternatives.