HCPL2531SDM

Transistor, Photovoltaic Output Optoisolators Overview

The HCPL2531SDM is a dual-channel high-speed transistor output optocoupler manufactured by onsemi. It features an AlGaAs LED coupled to phototransistors, providing electrical isolation with a maximum data rate of 1 Mbit/s. The device supports a maximum forward current of 25 mA and offers a minimum current transfer ratio of 19% at 16 mA input. It operates within a temperature range of -40°C to 100°C and provides a high isolation voltage of 5000 Vrms. The component is housed in an 8-SMD surface-mount package.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Dual-channel configuration for independent signal isolation
• High-speed operation supporting up to 1 Mbit/s data rates
• Robust insulation capability rated at 5000 Vrms
• Wide operating temperature range suitable for industrial environments

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial automation control systems
• Power supply feedback loops
• Communication interface isolation
• Microcontroller input/output isolation

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'SDM' to confirm the 8-SMD surface-mount package variant. Ensure compatibility with existing PCB footprints designed for this form factor. Confirm that the 1 Mbit/s speed rating meets system timing requirements. Check RoHS compliance status if environmental regulations apply to the final assembly.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when dual-channel isolation is required in a compact surface-mount layout. Consider the 1 Mbit/s speed limit against higher-speed alternatives like the HCPL-2630 series if faster data rates are necessary. Evaluate the 5000 Vrms isolation barrier against system safety standards. Verify that the transistor output type aligns with the receiving circuit's input impedance requirements.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the HCPL-253xM family of high-speed optocouplers. It serves as a surface-mount alternative to through-hole variants such as the HCPL-2531SV. The family is designed for applications requiring reliable galvanic isolation between low-voltage logic circuits and higher-voltage power stages or noisy environments.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

The HCPL-2531SV is a direct functional equivalent in a DIP package. For surface-mount replacements, verify pinout compatibility with other 8-SMD dual-channel optocouplers from the same manufacturer family.