HCPL-4731#500

Transistor, Photovoltaic Output Optoisolators Overview

The HCPL-4731#500 is a high-speed, dual-channel optocoupler manufactured by Broadcom Limited. It features photodarlington outputs and operates within an industrial temperature range of -40°C to +85°C. Key electrical parameters include a data rate of 100 kb/s, an isolation voltage of 3750 Vrms, and a maximum collector current of 60 mA. The device requires a forward current of 10 mA with a typical forward voltage of 1.2 V. It offers a high current transfer ratio of up to 25000% and dissipates a maximum power of 115 mW. The component is housed in an 8-pin PDIP Gull Wing package.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Dual-channel configuration providing independent signal isolation paths within a single compact package.
• High gain photodarlington output stage designed for efficient signal transmission with low input drive requirements.
• Robust electrical insulation capability ensuring safe separation between input and output circuits.

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial automation control systems requiring galvanic isolation
• Data communication interfaces for noise immunity
• Power supply feedback loops for safety compliance

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix designation against official Broadcom documentation to confirm packaging type and tape-and-reel specifications. Ensure the procurement channel provides valid RoHS compliance certificates. Cross-reference the manufacturer part number with the distributor listing to avoid confusion with similar variants in the HCPL-47xx family. Confirm that the received components match the active status indicated in public datasheets.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when dual-channel isolation is required alongside high current transfer ratios. The photodarlington output suits applications needing direct driving of logic inputs without additional amplification. Consider the 100 kb/s data rate limit for signal integrity. Evaluate the 3750 Vrms isolation rating against system safety standards. The 8-pin DIP form factor facilitates through-hole mounting on standard PCB layouts.

Transistor, Photovoltaic Output Optoisolators Part Context

This device belongs to the HCPL-4701/-4731 series of low-power, high-gain optocouplers. It serves as a dual-channel variant compatible with the pinout of the popular HCPL-2731. The series is engineered for applications demanding reliable signal transmission across isolated boundaries while minimizing power consumption. Broadcom designs these components to meet stringent industrial reliability standards.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Public documents indicate pin compatibility with the HCPL-2731. Verify functional equivalence regarding current transfer ratio and propagation delay before substitution. Check if alternative dual-channel optocouplers from other manufacturers meet the specific 3750 Vrms isolation requirement.