CDLL5931D

Single Zener Diodes Overview

The CDLL5931D is a surface-mountable Zener diode in the JEDEC DO-213AB package, offering a nominal voltage of 18 V with a 1% tolerance. It provides a rated average power dissipation of 1.5 W and operates within a junction temperature range of -65°C to +175°C. The device features a hermetically sealed glass construction with metallurgically enhanced internal contacts for high reliability.

Single Zener Diodes Feature Summary

• Hermetically sealed voidless hard glass package with tungsten slugs
• Metallurgically enhanced internal contact design for greater reliability
• Leadless MELF package ideal for high-density surface mounting
• Non-sensitive to electrostatic discharge

Single Zener Diodes Applications

• Voltage regulation over broad ranges of operation current and temperature
• High density and low parasitic requirement applications
• High reliability applications requiring source control drawing screening

Single Zener Diodes Procurement Notes

Verify RoHS compliance status as standard versions may be non-compliant; check for specific suffixes if lead-free requirements are mandatory. Confirm screening level against MIL-PRF-19500 if high-reliability standards are required by the source control drawing. Ensure correct polarity marking alignment during assembly.

Single Zener Diodes Selection Notes

Select based on required Zener voltage tolerance, specifically the 1% option available with the 'D' suffix. Consider thermal resistance values when designing heat dissipation paths on FR4 PCBs. Verify compatibility with existing footprint layouts due to the specific DO-213AB dimensions.

Single Zener Diodes Part Context

This component belongs to the 1N5913BUR-1 through 1N5956BUR-1 series, which serves as the surface-mount equivalent to the JEDEC registered 1N5913B through 1N5956B axial-leaded series. It shares similar electrical features but utilizes a leadless MELF package for improved mounting density.

Single Zener Diodes Replacement Considerations

Equivalent parts include the 1N5931C and 1N5931D from Microchip Technology.