CDLL5248A

Single Zener Diodes Overview

The CDLL5248A is a hermetically sealed glass silicon Zener diode manufactured by Microchip Technology. It features a MELF (DO-213AB) surface-mount package designed for high-reliability applications. The device provides a nominal Zener voltage of 18 V with a tolerance of ±10%. It operates within an extended temperature range from -65°C to +175°C and supports a maximum DC power dissipation of 0.5 W at ambient temperatures up to 50°C.

Single Zener Diodes Feature Summary

• Hermetically sealed glass construction ensures long-term stability and environmental resistance
• MELF (DO-213AB) surface-mount package facilitates automated assembly
• Extended operating temperature range suitable for harsh environments

Single Zener Diodes Applications

• Voltage regulation in aerospace systems
• Overvoltage protection circuits
• Reference voltage sources in precision instrumentation

Single Zener Diodes Procurement Notes

Verify the specific suffix designation, as variants such as CDLL5248A/TR may differ in packaging format while maintaining identical electrical characteristics. Confirm RoHS compliance status, as standard versions are typically non-compliant. Ensure the ordering quantity aligns with manufacturer minimum order requirements and lead times.

Single Zener Diodes Selection Notes

Select this component when a stable 18 V reference is required in space-constrained designs. The DO-213AB package offers a compact footprint compared to axial leads. Verify that the 0.5 W power rating meets the thermal dissipation needs of the target application under worst-case operating conditions.

Single Zener Diodes Part Context

This part belongs to the CDLL52xx series of hermetically sealed Zener diodes. These devices utilize double-plug construction and metallurgic bonding for enhanced durability. The series covers a wide range of voltage values, providing designers with standardized options for critical voltage regulation tasks.

Single Zener Diodes Replacement Considerations

Equivalent parts include the CLL5248A from Continental Device India Limited. Verify pinout compatibility and ensure the substitute meets the same hermetic sealing and temperature range specifications.