CDLL5944D

Single Zener Diodes Overview

The CDLL5944D is a surface-mount Zener diode from the 1N5913BUR-1 to 1N5956BUR-1 series, manufactured by Microchip Technology. It utilizes a JEDEC DO-213AB MELF package with metallurgically bonded glass construction. The device provides a nominal Zener voltage of 62 V at a test current of 6.0 mA. It features a dynamic impedance of 100 Ohms and a maximum reverse leakage current of 1.0 µA at 50 V. Rated for steady-state power dissipation up to 1.25 W at 25°C ambient temperature, it operates within a junction and storage temperature range of -65°C to +175°C.

Single Zener Diodes Feature Summary

• Metallurgically enhanced internal contacts for improved reliability and lower thermal resistance
• Hermetically sealed voidless hard glass package with tungsten slugs
• Leadless design suitable for high-density surface mounting applications

Single Zener Diodes Applications

• Voltage regulation across broad ranges of operation current and temperature
• High-reliability applications requiring screening in accordance with MIL-PRF-19500
• Circuits demanding low parasitic requirements and high density

Single Zener Diodes Procurement Notes

Verify the specific suffix 'D' indicates a 1% voltage tolerance level as defined in the part nomenclature. Confirm RoHS compliance status, as versions exist with and without this designation. Ensure sourcing aligns with the manufacturer's official documentation for the 1N5913BUR-1 through 1N5956BUR-1 series to validate electrical characteristics and packaging options.

Single Zener Diodes Selection Notes

Select this component when a 62 V Zener reference is required in a compact surface-mount form factor. The DO-213AB package offers a direct footprint alternative to axial-leaded equivalents while maintaining similar electrical performance. Consider the 1% tolerance option if precise voltage regulation is critical for the circuit design.

Single Zener Diodes Part Context

This device belongs to a series of 1.5 Watt Zener diodes available in multiple packages, including DO-41 axial leaded and SMB/SMA tabbed surface mount variants. The CDLL5944D specifically corresponds to the 1N5944B number within the JEDEC registered series, adapted for surface-mount integration via the MELF format.

Single Zener Diodes Replacement Considerations

Equivalent parts include the 1N5944B (axial) or 1N5944BUR-1 (surface mount). Verify that substitute components match the 62 V Zener voltage, 100 Ohm impedance, and DO-213AB package dimensions.