HCPL2531SD

Transistor, Photovoltaic Output Optoisolators Overview

The HCPL2531SD is a dual-channel high-speed optocoupler manufactured by onsemi, housed in an 8-pin surface-mount DIP package. It features AlGaAs LED inputs and phototransistor outputs, supporting data rates up to 1 Mbit/s with a typical response time of 450 ns. The device provides 2500 Vrms isolation voltage and operates within a temperature range of -55°C to +100°C. Key electrical parameters include a maximum forward current of 50 mA, a maximum collector current of 8 mA, and a minimum current transfer ratio of 19% at 16 mA input.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Dual-channel configuration for simultaneous signal transmission
• High-speed operation suitable for digital communication interfaces
• Wide operating temperature range for industrial environments
• Surface-mount packaging for automated assembly

Transistor, Photovoltaic Output Optoisolators Applications

• Data acquisition systems requiring galvanic isolation
• Industrial control circuits with noise immunity needs
• Power supply feedback loops
• Pulse transformer replacement applications

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'SD' corresponds to the surface-mount variant when sourcing. Confirm that the manufacturer is onsemi, as other vendors may produce similar part numbers with different specifications. Ensure compliance with RoHS directives if required for the application. Check for availability of the recommended new equivalent part number HCPL253xM series for future designs.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when dual-channel isolation is required in a compact surface-mount footprint. Consider the 1 Mbit/s speed limit for signal integrity. Evaluate the 2500 Vrms isolation rating against system safety requirements. Compare thermal performance within the -55°C to +100°C range against environmental conditions.

Transistor, Photovoltaic Output Optoisolators Part Context

This device belongs to the HCPL-253x family of high-speed transistor output optocouplers. It is functionally related to through-hole variants like HCPL2531V but differs in package type. The family is designed for replacing pulse transformers and providing broadband analog coupling capabilities in isolated signal paths.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

onsemi recommends using the HCPL253xM series as the new equivalent part number for this component. Verify pinout compatibility before substitution.