HCPL-268K

Logic Output Optoisolators Overview

The HCPL-268K is a high-reliability, Class K, two-channel hermetically sealed optocoupler manufactured by Broadcom Limited. It features a 16-pin ceramic DIP package with gold-plated leads and provides 1500VDC isolation between input and output circuits. The device offers a data rate of 10 MBd, an open collector output type, and a forward current of 20 mA. Key electrical parameters include a typical rise time of 90 ns, fall time of 40 ns, and power dissipation of 200 mW. It operates within a temperature range of -55°C to 125°C.

Logic Output Optoisolators Feature Summary

• Hermetically sealed construction in a 16-pin ceramic DIP package for enhanced reliability
• High common-mode transient immunity of 1 kV/µs
• Schottky-clamped open collector outputs for fast switching performance
• Gold-plated leads with solder-dipped finish for robust connectivity

Logic Output Optoisolators Applications

• Industrial control systems requiring high isolation reliability
• Medical equipment demanding strict safety standards
• Military and aerospace electronic systems
• High-noise industrial environments with critical signal integrity needs

Logic Output Optoisolators Procurement Notes

Verify the specific suffix (e.g., #200) against the official datasheet to ensure correct packaging and lead configuration. Confirm that the ceramic DIP package and hermetic seal meet the project's environmental and reliability requirements. Check for RoHS compliance status if applicable to the specific manufacturing batch. Ensure the supplier provides traceability documentation consistent with Class K reliability standards.

Logic Output Optoisolators Selection Notes

Select this component when high reliability and hermetic sealing are mandatory due to harsh operating conditions. The 1500VDC isolation rating suits applications requiring significant voltage separation. Consider the 16-pin footprint and through-hole mounting constraints during PCB layout. Evaluate the 10 MBd speed against system timing requirements to ensure adequate signal transmission rates without distortion.

Logic Output Optoisolators Part Context

The HCPL-268K belongs to Broadcom's HCPL series of high-speed optocouplers. It is distinguished by its Class K reliability classification and hermetic ceramic packaging, setting it apart from standard plastic-packaged variants. This series targets applications where long-term stability and resistance to environmental factors are critical, such as in defense or medical sectors.

Logic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers include HCPL-2631-000E for non-hermetic alternatives, though isolation and package differences exist. Other related models like HCPL-563x or HCPL-663x may offer similar functionality but differ in pinout or sealing. Verify compatibility before substitution.