HCPL2531M

Transistor, Photovoltaic Output Optoisolators Overview

The HCPL2531M is a dual-channel high-speed transistor output optocoupler manufactured by onsemi. It features an AlGaAs LED coupled to a phototransistor, providing electrical isolation with a maximum insulation voltage of 5000 Vrms. The device supports a data rate of 1 Mbit/s and operates within a temperature range of -40°C to 100°C. Key electrical parameters include a maximum forward current of 25 mA, a minimum current transfer ratio of 15%, and a typical response time of 450 ns. It is housed in an 8-pin DIP package.

Transistor, Photovoltaic Output Optoisolators Feature Summary

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

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial automation control systems
• Power supply feedback loops
• Signal isolation in communication interfaces
• Microprocessor input/output isolation

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'M' indicates the 5000 Vrms isolation rating and PDIP package variant. Confirm compliance with RoHS standards and UL/IEC certifications as documented in the official datasheet. Ensure the component meets the required thermal and electrical specifications for the intended application environment before procurement.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when dual-channel isolation is required at high speeds. Compare against single-channel alternatives like the 6N135 if only one channel is needed. Consider the 5000 Vrms isolation level for applications requiring higher safety margins than standard 2500 Vrms devices. Evaluate the 1 Mbit/s speed limit against system timing requirements.

Transistor, Photovoltaic Output Optoisolators Part Context

The HCPL2531M belongs to the HCPL series of high-speed optocouplers from onsemi. It is part of a family that includes variants with different isolation ratings and channel counts. This specific model provides a dual-channel solution, distinguishing it from single-channel counterparts like the HCPL-2530 or HCPL-2531 (non-M variant).

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

The HCPL2531SV is a related dual-channel variant but offers lower isolation (2500 Vrms). For new designs, onsemi recommends the HCPL253xM series equivalents. Verify pin compatibility and isolation ratings when substituting with other manufacturers' parts.