HCPL2531SDV

Transistor, Photovoltaic Output Optoisolators Overview

The HCPL2531SDV is a dual-channel high-speed transistor output optocoupler manufactured by Fairchild Semiconductor. It consists of an AlGaAs LED optically coupled to a photodetector transistor, providing electrical isolation between input and output circuits. The device supports a data rate of 1 Mbit/s and features a common-mode rejection ratio of 10 kV/µs. It operates within a temperature range of 0°C to 70°C and includes guaranteed current transfer ratio (CTR) specifications across this operating range.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Dual-channel configuration for independent signal isolation
• High-speed operation supporting 1 Mbit/s data rates
• Superior common-mode noise immunity with 10 kV/µs rejection ratio
• TTL-compatible logic interface design

Transistor, Photovoltaic Output Optoisolators Applications

• High-speed TTL to TTL logic interfacing
• Industrial control systems requiring galvanic isolation
• Data communication channels with noise-sensitive environments

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the manufacturer designation on the component marking, as Fairchild Semiconductor assets were acquired by ON Semiconductor. Confirm that the specific part number suffix matches the required package type and compliance standards. Ensure the sourcing channel provides valid traceability documentation for the original Fairchild production lot or the subsequent ON Semiconductor continuation.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when dual-channel isolation is required for high-speed digital signals. The transistor output type necessitates external pull-up resistors for proper logic level generation. Consider the 1 Mbit/s speed limit and 10 kV/µs CMR when evaluating against faster or higher-noise-immunity alternatives in the same family.

Transistor, Photovoltaic Output Optoisolators Part Context

This device belongs to the HCPL-253x series of dual-channel high-speed optocouplers. It shares architectural similarities with single-channel variants like the HCPL-2530 but integrates two isolated channels within a single package. The series is designed for applications demanding fast switching speeds and robust noise rejection in compact form factors.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

HCPL2531SDVM: ON Semiconductor equivalent with similar specifications and surface-mount packaging.