HCPL0731R1

Transistor, Photovoltaic Output Optoisolators Overview

The HCPL-0731R1 is a dual-channel high-speed optocoupler from the HCPL series, manufactured by onsemi. It features a split Darlington output configuration designed for low current input and high gain applications. The device utilizes an 8-pin SOIC surface-mount package. Key electrical specifications include a data rate of 100 kb/s, an isolation voltage of 2500 Vrms, and a maximum collector output current of 60 mA. The typical current transfer ratio is 5000%, with a forward voltage of 1.35 V and a maximum forward current of 20 mA. Operating temperatures range from -40°C to +85°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Dual-channel architecture providing independent signal isolation paths within a single compact package.
• Split Darlington output structure engineered to deliver high current gain suitable for low-drive input signals.
• High-speed performance capability supporting data rates up to 100 kb/s for efficient digital communication.
• Robust electrical isolation barrier rated at 2500 Vrms to ensure safety in isolated circuit interfaces.

Transistor, Photovoltaic Output Optoisolators Applications

• Pulse transformer replacement in digital isolation circuits
• Line receiver applications requiring high noise immunity
• Broadband analog coupling systems

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify component status carefully as this part number may be obsolete or end-of-life. Confirm availability through authorized distributors or check for active replacement recommendations from onsemi. Ensure the specific suffix matches design requirements. Cross-reference datasheets for any parameter variations between legacy and current production batches. Validate compliance with RoHS directives if required for the target application.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when dual-channel isolation with high gain is required for low-current drive scenarios. The split Darlington output offers superior current handling compared to standard phototransistor outputs. Consider the 100 kb/s speed limit for timing-critical designs. Evaluate the 8-pin SOIC footprint for PCB layout constraints. Compare against single-channel alternatives if only one isolation path is needed to optimize board space.

Transistor, Photovoltaic Output Optoisolators Part Context

This device belongs to the HCPL family of high-speed optocouplers known for reliable digital isolation. The HCPL-0731 variant specifically targets applications needing high current transfer ratios. The 'R1' suffix typically denotes tape-and-reel packaging for automated assembly processes. This series is widely used in industrial control and communication equipment where galvanic isolation is critical.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

HCPL-0731R2 is listed as a similar available substitute. Verify pinout compatibility and electrical parameters before substitution. Check for any differences in packaging or manufacturing origin that might affect supply chain stability.