HCPL-540K-300

Logic Output Optoisolators Overview

The HCPL-540K-300 is a high-speed logic output optoisolator manufactured by Broadcom Limited. It features a single channel with a data rate of 40 Mb/s and isolation voltage of 1500 VDC. The device utilizes a hermetically sealed PDIP-8 Gull Wing package for surface mount installation. Key electrical parameters include a forward current of 10 mA, forward voltage of 1.35 V, and output current of 25 mA. Rise and fall times are specified at 15 ns and 10 ns respectively, with propagation delays up to 60 ns. Operating temperature ranges from -55°C to +125°C.

Logic Output Optoisolators Feature Summary

• Hermetically sealed construction compliant with MIL-PRF-38534 Class K standards
• High common-mode transient immunity of 500 V/µs
• Logic gate output configuration for direct interfacing

Logic Output Optoisolators Applications

• Military and aerospace systems requiring radiation hardening
• High-speed digital isolation in industrial control
• Isolated signal transmission in harsh environments

Logic Output Optoisolators Procurement Notes

Verify the specific suffix 'K' indicates compliance with MIL-PRF-38534 Class K or QML-38534 military standards. Confirm the '-300' suffix denotes the bulk packaging format and gull-wing lead form. Ensure the component matches the hermetically sealed ceramic DIP package specification required for qualified applications. Cross-reference the manufacturer part number with official Broadcom documentation to validate authenticity and traceability.

Logic Output Optoisolators Selection Notes

Select this component when high-speed digital isolation is required alongside strict environmental reliability standards. The tri-state logic output allows for bus sharing and efficient power management. Consider the 40 Mb/s data rate capability for fast signal transmission needs. The wide operating temperature range supports deployment in extreme conditions where standard commercial components may fail.

Logic Output Optoisolators Part Context

This part belongs to the HCPL-540 series of high-speed optocouplers designed for demanding applications. Unlike standard commercial variants, the HCPL-540K-300 is specifically engineered for military and aerospace use cases. It offers superior isolation performance and robustness compared to general-purpose optocouplers, ensuring reliable operation under severe mechanical and thermal stress.

Logic Output Optoisolators Replacement Considerations

Direct replacements must match the hermetically sealed military grade specification. Generic HCPL-5401 variants lack the required qualification and sealing. Verify pinout compatibility and logical function equivalence before substitution.