HCPL-6251

Logic Output Optoisolators Overview

The HCPL-6251 is a high-reliability, Class H, four-channel hermetically sealed optocoupler housed in a 16-pin ceramic flat package. It features a data rate of 5 Mb/s and supports an input forward current of 8 mA with a typical forward voltage of 1.3 V. The device provides open collector outputs capable of handling 15 mA output current, with power dissipation rated at 200 mW. Operating temperatures range from -55°C to +125°C. Key timing parameters include a rise time of 45 ns, fall time of 10 ns, and propagation delay of 350 ns. It offers 1500 VDC isolation and 1 kV/µs common-mode transient immunity.

Logic Output Optoisolators Feature Summary

• Hermetically sealed construction in a 16-pin ceramic flat package for high reliability
• Four independent channels providing galvanic isolation
• Wide operating temperature range suitable for harsh environments
• High common-mode transient immunity for noise-sensitive applications

Logic Output Optoisolators Applications

• Military and aerospace systems requiring radiation-hardened or high-reliability components
• Industrial control systems demanding robust isolation
• Medical equipment requiring certified safety isolation
• Test and measurement instrumentation

Logic Output Optoisolators Procurement Notes

Verify the specific ordering suffix to confirm lead availability and packaging configuration. Ensure the selected variant matches the required pinout and termination style for your PCB layout. Confirm compliance with relevant military or industrial standards if applicable to your system design requirements.

Logic Output Optoisolators Selection Notes

Select this component when high reliability and hermetic sealing are critical. The four-channel configuration reduces board space compared to single-channel alternatives. Verify that the 5 Mb/s data rate meets your system's speed requirements and that the ceramic package fits within your thermal and mechanical constraints.

Logic Output Optoisolators Part Context

This part belongs to the HCPL-6xxx series of high-speed optocouplers manufactured by Broadcom Limited. The series includes various channel counts and package options designed for digital signal transmission across isolated barriers. The HCPL-6251 specifically targets applications requiring hermetic sealing and high reliability.

Logic Output Optoisolators Replacement Considerations

Check for direct replacements such as the HCPL-6250 (dual channel) or HCPL-6253 (quad channel with different output types). Verify pin compatibility and electrical specifications before substituting. Consult manufacturer documentation for cross-reference lists.