81028032A

Overview

The Broadcom Limited 81028032A is a high-speed, dual-channel optocoupler housed in a hermetically sealed LCCC-20 package. It features open collector outputs and supports data rates up to 10 Mb/s with an isolation voltage of 1500 Vdc. Key electrical parameters include a forward current of 20 mA, forward voltage of 1.5 V, and output current of 25 mA. The device operates within a temperature range of -55°C to +125°C, with typical rise and fall times of 90 ns and 40 ns respectively, and a maximum propagation delay of 100 ns.

Feature Summary

• Hermetically sealed construction for reliability in harsh environments
• High common-mode rejection capability for noise immunity
• Dual-channel configuration for compact circuit design
• Logic-compatible open collector outputs

Applications

• Military and aerospace systems requiring radiation-hardened or sealed components
• Industrial control systems with high noise immunity needs
• Medical equipment requiring galvanic isolation
• Data communication interfaces demanding high-speed signal transmission

Procurement Notes

Verify the specific suffix code to ensure the correct package type and lead finish match your design requirements. Confirm RoHS compliance status if environmental regulations apply to your assembly process. Check for MIL-PRF-38534 certification if military-grade reliability documentation is required for procurement approval. Ensure the supplier provides valid traceability records for hermetically sealed components.

Selection Notes

Select this component when hermetic sealing is mandatory for environmental protection. Choose the LCCC-20 package for surface-mount applications requiring robust physical integrity. Consider the 10 Mb/s speed limit for digital signal isolation. Verify that the open collector output interface matches the receiving logic circuit requirements without additional pull-up constraints.

Part Context

This part belongs to the Broadcom 8102 series of high-speed optocouplers. The series includes single, dual, and quad channel variants with similar performance characteristics but different pin counts and configurations. These devices are designed for applications requiring high reliability and fast switching speeds in isolated environments.

Replacement Considerations

Check for direct replacements within the 8102 series such as 8102802PC for DIP-8 packaging. Verify pinout compatibility and electrical parameter equivalence before substitution. Ensure the replacement maintains the hermetic seal requirement if applicable.