CDLL5279D

Single Zener Diodes Overview

The CDLL5279D is a hermetically sealed surface-mount Zener diode manufactured by Microchip Technology. It features a DO-213AA (SMB) package and provides a nominal Zener voltage of 180V. The device is designed for high-reliability applications requiring stable voltage regulation in compact form factors.

Single Zener Diodes Feature Summary

• Hermetically sealed construction for enhanced environmental protection
• Surface-mount design compatible with automated assembly processes
• High-voltage regulation capability suitable for demanding circuits

Single Zener Diodes Applications

• High-voltage power supply regulation
• Industrial control systems
• Aerospace and defense electronics

Single Zener Diodes Procurement Notes

Verify the specific suffix requirements, such as -e3 for RoHS compliance or -1 for internal metallurgical bond options, against project specifications. Confirm package authenticity and datasheet alignment before integration to ensure compatibility with existing designs.

Single Zener Diodes Selection Notes

Select this component when hermetic sealing and high-voltage stability are critical. Ensure the PCB layout supports the DO-213AA footprint. Evaluate thermal management needs despite the low current nature of Zener regulators in reference applications.

Single Zener Diodes Part Context

This part belongs to Microchip's discrete semiconductor portfolio, specifically within the Zener diode category. It serves legacy and new designs requiring robust voltage references in harsh environments where standard plastic packages may not suffice.

Single Zener Diodes Replacement Considerations

Check for direct substitutes with identical 180V Zener voltage and DO-213AA package. Verify pinout compatibility and hermetic seal requirements if replacing with non-Microchip equivalents.

Single Zener Diodes FAQ

Is the CDLL5279D available in a RoHS-compliant version?

Yes, RoHS compliant devices are available by adding the 'e3' suffix to the part number.

What packaging option is available for internal metallurgical bonds?

An internal metallurgical bond option is available by adding the '-1' suffix to the part number.