1N5934BUR-1

Single Zener Diodes Overview

The Microchip Technology 1N5934BUR-1 is a surface-mountable 1.5 W Zener diode housed in the JEDEC DO-213AB MELF package. It provides a nominal Zener voltage of 24 V with a 5% tolerance, tested at a current of 15.6 mA. The device features a dynamic impedance of 19 Ohms and a maximum reverse leakage current of 1 µA at 18.2 V. Rated for steady-state power dissipation up to 1.5 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

• Hermetically sealed glass construction with metallurgically enhanced internal contacts for high reliability.
• Leadless MELF package design optimized for high-density surface mounting applications.
• Capable of screening in reference to MIL-PRF-19500 standards for controlled source requirements.
• Inherently radiation hard and non-sensitive to electrostatic discharge.

Single Zener Diodes Applications

• Voltage regulation across broad ranges of operation current and temperature.
• High-density circuit board layouts requiring low parasitic characteristics.
• High-reliability systems governed by specific source control drawings.

Single Zener Diodes Procurement Notes

Verify the specific RoHS compliance status and reliability level (commercial or screened) required for the project, as these are determined by suffixes not present in the base part number. Confirm that the DO-213AB footprint matches the recommended pad layout provided in the datasheet to ensure proper soldering and thermal performance during assembly.

Single Zener Diodes Selection Notes

Select this component when a hermetically sealed surface-mount Zener diode is required for environments demanding high thermal stability and radiation hardness. The 24 V rating and 1.5 W power dissipation capability make it suitable for robust voltage regulation tasks where leaded packages are unsuitable due to space constraints.

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 series. The series covers Zener voltages from 3.3 V to 200 V, offering various tolerance options including 10%, 5%, 2%, and 1%.

Single Zener Diodes Replacement Considerations

The 1N5934BG is the direct axial-leaded replacement within the same electrical family. Other surface-mount equivalents include the SMBG(J)5934B, SMAJ5934B, and 1PMT5934B variants, which share similar power ratings but utilize different tabbed packages.