HCPL2531WV

Transistor, Photovoltaic Output Optoisolators Overview

The HCPL2531WV is a dual-channel high-speed transistor output optocoupler manufactured by Fairchild Semiconductor. It features an AlGaAs LED optically coupled to a high-speed photodetector transistor, providing 2500 Vrms isolation voltage. The device supports a data rate of 1 Mbit/s and operates within a temperature range of -55°C to +100°C. Key electrical parameters include a maximum forward current of 25 mA, a maximum forward voltage of 1.7 V, and a maximum collector current of 8 mA. The component utilizes an 8-pin DIP package for through-hole mounting.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Dual-channel configuration with separate input and output circuits
• High common mode rejection ratio of 10kV/µs
• Internal noise shield for superior signal integrity
• Enhanced insulation permitting higher working voltages

Transistor, Photovoltaic Output Optoisolators Applications

• Line receivers in communication systems
• Pulse transformer replacement in digital circuits
• Output interface to CMOS, LSTTL, and TTL logic families
• Wide bandwidth analog coupling applications

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'WV' against official Fairchild or onsemi documentation to confirm package type and compliance status. Ensure the source document explicitly lists HCPL2531WV as a distinct part number rather than a generic family designation. Cross-reference manufacturer datasheets for accurate pinout and thermal specifications before integration.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high-speed digital isolation is required between circuits operating at different potential levels. The dual-channel design allows for efficient space utilization in compact PCB layouts. Consider the 1 Mbit/s speed limit and 2500 Vrms isolation rating to ensure compatibility with system voltage and data transmission requirements.

Transistor, Photovoltaic Output Optoisolators Part Context

This device belongs to the HCPL-2530/HCPL-2531 series of high-speed optocouplers. It shares architectural similarities with the single-channel HCPL-2530 and other variants like HCPL-4502. The series is characterized by its use of an internal photodiode bias connection to reduce base-collector capacitance, significantly improving switching speed compared to conventional phototransistor optocouplers.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Rochester Electronics notes that new designs should consider equivalent part numbers. Verify if HCPL-2531 without the WV suffix or alternative dual-channel high-speed optocouplers from the same manufacturer are suitable replacements based on package and specification alignment.