CDLL4931A/TR

Single Zener Diodes Overview

The CDLL4931A/TR is a single Zener diode manufactured by Microchip Technology, designed for surface-mount applications in the DO-213AA package. It features a nominal Zener voltage of 19.2 V with a tolerance of ±5%. The device supports a maximum power dissipation of 500 mW and exhibits a reverse leakage current of 15 µA at 12 V. It operates within an extended temperature range of -65°C to +175°C, making it suitable for high-reliability environments.

Single Zener Diodes Feature Summary

• Temperature compensated design for stable voltage regulation across wide thermal ranges
• High-temperature operation capability up to 175°C junction temperature
• Surface-mount construction in compact DO-213AA package

Single Zener Diodes Applications

• Voltage reference circuits requiring high-temperature stability
• Protection circuits in aerospace and defense systems
• Industrial control systems operating in extreme environments

Single Zener Diodes Procurement Notes

Verify RoHS compliance status as the component may not meet standard environmental directives. Confirm package type DO-213AA matches PCB footprint requirements. Ensure temperature rating aligns with system operational extremes. Check for lead-free availability if required by specific manufacturing standards.

Single Zener Diodes Selection Notes

Select this component when fixed voltage regulation is needed under high thermal stress. The DO-213AA package offers robust surface-mount reliability. Consider the 19.2 V nominal value and ±5% tolerance for precise circuit design. Evaluate the 500 mW power handling against expected load conditions.

Single Zener Diodes Part Context

This part belongs to Microchip's CDLL4931 series of single Zener diodes. The series provides various voltage options within the same package family. The TR suffix indicates tape-and-reel packaging for automated assembly processes.

Single Zener Diodes Replacement Considerations

CDLL4931A is a direct functional equivalent. CDLL4932 offers similar characteristics with different voltage ratings.