CDLL5919D

Single Zener Diodes Overview

The CDLL5919D is a surface-mountable Zener diode from the Microchip Technology series, housed in a JEDEC DO-213AB package. It provides a nominal Zener voltage of 5.6 V with a tight tolerance of ±1%. The device operates within a temperature range of -65°C to +175°C and features a maximum steady-state power dissipation of 1.5 W at an end cap temperature of 115°C or 1.25 W at 25°C ambient. Electrical characteristics include a test current of 66.9 mA, a dynamic impedance of 2 Ohms, and a maximum reverse leakage current of 5 µA.

Single Zener Diodes Feature Summary

• Metallurgically bonded glass construction for hermetic sealing and enhanced reliability
• Leadless MELF design optimized for high-density surface mounting applications
• Low parasitic capacitance suitable for high-frequency circuit requirements
• Radiation hard performance capabilities as defined by manufacturer documentation

Single Zener Diodes Applications

• Voltage regulation across broad operational current and temperature ranges
• High-density surface mount circuits requiring low parasitic elements
• High reliability applications subject to source control drawings or MIL-PRF-19500 screening

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix against official datasheets to confirm RoHS compliance status and reliability level. Confirm that the requested part number corresponds to the correct voltage tolerance and packaging option. Ensure compatibility with existing footprint designs and thermal management strategies before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when precise voltage regulation is required in compact surface-mount layouts. The DO-213AB package offers lower thermal resistance compared to traditional axial leads. Consider the specific test current and knee impedance parameters to ensure proper biasing conditions are met for the intended application environment.

Single Zener Diodes Part Context

This device 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 packages. The series covers Zener voltages from 3.3 V to 200 V, providing designers with a standardized option for replacing through-hole components in modern PCB assemblies.

Single Zener Diodes Replacement Considerations

Direct equivalents include the 1N5919D and 1N5919BUR-1 variants. Alternative package options such as DO-41 (axial) or SMBG/SMAJ (tabbed SMD) exist within the same electrical family but require different mechanical footprints.