CDLL4903A

Single Zener Diodes Overview

The CDLL4903A is a temperature-compensated Zener reference diode manufactured by Microchip Technology. It features a nominal Zener voltage of 12.8 V with a 5% tolerance and operates in the DO-7-2 through-hole package. The device supports a maximum power dissipation of 400 mW and maintains an operating temperature range from -65°C to +175°C. Key electrical characteristics include a maximum reverse leakage current of 15 µA, a Zener impedance of 100 Ohms, and a voltage temperature coefficient of 0.01 %/°C at a test current of 2 mA.

Single Zener Diodes Feature Summary

• Temperature compensated design for stable voltage reference performance across wide thermal ranges
• Low noise operation suitable for precision analog applications
• Robust construction utilizing metallurgically bonded double plug technology

Single Zener Diodes Applications

• Precision voltage reference circuits requiring high thermal stability
• Temperature compensation networks in electronic systems
• Reference sources for analog-to-digital conversion stages

Single Zener Diodes Procurement Notes

Verify the specific suffix designation against official Microchip documentation to confirm package type and tape-and-reel specifications. Confirm RoHS compliance status as indicated in product databases. Ensure the ordering quantity aligns with manufacturer minimum order requirements before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a stable 12.8 V reference is required in through-hole designs. The low temperature coefficient makes it suitable for environments with significant thermal fluctuations. Compare power dissipation limits and leakage currents against circuit requirements to ensure reliable operation under expected load conditions.

Single Zener Diodes Part Context

This part belongs to the CDLL49xx series of temperature-compensated Zener diodes produced by Microchip Technology. These devices are engineered to provide consistent voltage regulation despite environmental changes. The series utilizes specialized doping profiles to minimize drift over temperature variations.

Single Zener Diodes Replacement Considerations

Consult Microchip datasheets for direct equivalents within the CDLL49xx family. Verify pin compatibility and thermal characteristics before substituting with components from other manufacturers.