CDLL5932B

Single Zener Diodes Overview

The CDLL5932B is a surface-mount Zener diode manufactured by Microchip Technology, housed in the JEDEC DO-213AB (MELF) package. It provides a nominal Zener voltage of 18 V with a tolerance of ±5%. The device operates within a junction and storage temperature range of -65°C to +175°C. Key electrical characteristics include a maximum dynamic impedance of 12 Ohms at a test current of 20.8 mA, a knee current of 650 mA, and a reverse leakage current of 1 µA at 13.7 V. The rated average power dissipation is 1.5 W.

Single Zener Diodes Feature Summary

• Hermetically sealed glass package with metallurgically enhanced internal contacts for high reliability.
• Leadless design suitable for high-density surface mounting applications.
• Non-sensitive to electrostatic discharge per MIL-STD-750 method 1020.
• Inherently radiation hard as described in Microsemi MicroNote 050.

Single Zener Diodes Applications

• Voltage regulation over broad ranges of operation current and temperature.
• High density surface mounting requiring low parasitic elements.
• High reliability applications requiring screening in accordance with MIL-PRF-19500.

Single Zener Diodes Procurement Notes

Verify compliance requirements before procurement, as standard versions are non-RoHS compliant while RoHS-compliant options exist with specific suffixes. Confirm that the required tolerance level matches the 'B' designation for 5% accuracy. Ensure sourcing channels can provide parts screened to MIL-PRF-19500 if high-reliability specifications are mandated for the application.

Single Zener Diodes Selection Notes

Select this component when a hermetic, leadless surface-mount Zener diode is required for space-constrained designs. The DO-213AB package offers lower thermal resistance compared to axial-leaded equivalents. Consider the 18 V nominal voltage and 1.5 W power rating to ensure adequate headroom for the intended circuit load and operating temperature conditions.

Single Zener Diodes Part Context

This part belongs to the CDLL5913 through CDLL5956 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. The CDLL5932B specifically corresponds to the 18 V variant within this extensive lineup of metallurgically bonded glass surface mount devices.

Single Zener Diodes Replacement Considerations

The direct axial-leaded equivalent is the 1N5932B. Other surface-mount form factors in the same family include the SMBG(J)5932B, SMAJ5932B, and 1PMT5932B variants, which offer different mechanical footprints but similar electrical features.

Single Zener Diodes FAQ

What is the maximum power dissipation rating for the CDLL5932B?

The rated average power dissipation is 1.5 W.

Is the CDLL5932B sensitive to electrostatic discharge?

No, the device is non-sensitive to ESD per MIL-STD-750 method 1020.