HCPL-543K-300

Logic Output Optoisolators Overview

The HCPL-543K-300 is a high-speed, dual-channel optocoupler featuring hermetic sealing in an 8-Pin ceramic DIP package. It provides Class K reliability with gold-plated leads and offers 1500VDC isolation. The device supports data rates up to 40 Mb/s with typical rise and fall times of 15 ns and 10 ns respectively. Key electrical parameters include a forward current of 10 mA, forward voltage of 1.35 V, reverse voltage of 3 V, output current of 25 mA, and power dissipation of 200 mW. Operating temperature range starts at -55°C.

Logic Output Optoisolators Feature Summary

• Hermetically sealed construction in an 8-pin ceramic DIP package for maximum environmental protection
• Class K reliability level with gold-plated leads ensuring long-term stability
• Dual-channel design providing independent signal isolation within a single component

Logic Output Optoisolators Applications

• Isolating sensitive circuit portions from common mode signals
• High-reliability industrial control systems requiring hermetic sealing
• Aerospace and defense electronic applications demanding Class K components

Logic Output Optoisolators Procurement Notes

Verify the specific ordering suffix matches the required package variant and lead finish. Confirm that the hermetic seal integrity meets Class K standards for the intended environment. Ensure the manufacturer documentation explicitly lists this part number as active or available for procurement. Cross-reference the datasheet revision date to ensure compatibility with current design specifications.

Logic Output Optoisolators Selection Notes

Select this component when hermetic sealing and Class K reliability are mandatory requirements. Consider the 40 Mb/s data rate capability for high-speed digital isolation needs. Evaluate the 1500VDC isolation voltage against system safety margins. Verify that the 8-pin ceramic DIP package fits the available board space and mounting constraints.

Logic Output Optoisolators Part Context

This part belongs to the HCPL-543K series of high-speed optocouplers manufactured by Broadcom Limited. The series is characterized by its robust ceramic packaging and gold-plated leads, designed for extreme environments. It serves as a specialized solution where standard plastic-packaged optocouplers fail to meet reliability or sealing standards.

Logic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.