CDLL5917D

Single Zener Diodes Overview

The CDLL5917D is a surface-mountable Zener diode in the JEDEC DO-213AB package, featuring a nominal voltage of 4.7 V and a test current of 79.8 mA. It offers a dynamic impedance of 5.0 Ohms and a maximum reverse current of 1.5 µA at 5.0 V. The device supports a steady-state power dissipation of 1.25 W and operates within a junction temperature range of -65°C to +175°C.

Single Zener Diodes Feature Summary

• Hermetically sealed glass package with metallurgically enhanced internal contacts for high reliability.
• Leadless design ideal for high-density surface mounting applications.
• Inherently radiation hard and non-sensitive to electrostatic discharge.

Single Zener Diodes Applications

• Voltage regulation over broad ranges of operation current and temperature.
• High density circuit designs requiring low parasitic characteristics.
• High reliability applications specified by source control drawings or MIL-PRF-19500 screening.

Single Zener Diodes Procurement Notes

Verify RoHS compliance status as standard versions are non-compliant while e3 suffixes indicate compliance. Confirm specific tolerance requirements against available options including 1%, 2%, 5%, and 10%. Ensure ordering suffixes match desired packaging such as tape and reel variants. Validate screening levels if military-grade reliability is required for the final assembly.

Single Zener Diodes Selection Notes

Select based on precise Zener voltage needs within the 3.3 V to 200 V series availability. Consider thermal resistance values when designing heat dissipation paths on FR4 PCBs. Evaluate capacitance specifications relative to high-frequency signal integrity requirements. Match operating temperature ranges to environmental constraints of the target deployment scenario.

Single Zener Diodes Part Context

This component belongs to the 1N5913BUR-1 through 1N5956BUR-1 series, also identified historically as CDLL5913 through CDLL5956. It serves as the surface-mount equivalent to axial-leaded 1N5913B through 1N5956B devices. The series provides consistent electrical features across various voltage ratings in a compact MELF form factor.

Single Zener Diodes Replacement Considerations

Equivalent axial-leaded parts include the 1N5917B. Surface-mount alternatives in different packages include SMBG(J)5917B, SMAJ5917B, and 1PMT5917B. Verify pinout polarity and physical dimensions before substituting into existing footprints.