1N5223BUR-1

Single Zener Diodes Overview

The Microchip Technology 1N5223BUR-1 is a surface mount Zener voltage regulator in the DO-213AA package. It provides a nominal Zener voltage of 2.7 V at a test current of 20 mA, with a maximum dynamic impedance of 30 Ohms and a maximum reverse leakage current of 75 µA. The device features a metallurgically bonded glass construction, operates within a junction temperature range of -65°C to +175°C, and dissipates up to 0.5 W.

Single Zener Diodes Feature Summary

• Hermetically sealed surface mount package with internal metallurgical bond
• Inherently radiation hard per Microsemi specifications
• Non-sensitive to electrostatic discharge (ESD)
• Minimal capacitance characteristics

Single Zener Diodes Applications

• Voltage regulation over broad operating current and temperature ranges
• Spacecraft avionics data acquisition systems
• Radiation-hardened electronic circuits

Single Zener Diodes Procurement Notes

Verify the specific suffix letters on the part number to confirm the exact voltage tolerance required for the application. Confirm whether RoHS compliance is necessary, as commercial versions offer compliant options while others may not. Ensure the selected variant matches the intended reliability level and screening requirements before procurement.

Single Zener Diodes Selection Notes

Select this component when a surface mount equivalent to the JEDEC registered 1N5221 series is needed. Choose based on the required Zener voltage and tolerance levels available through different suffixes. Consider the metallurgically bonded construction for applications requiring hermetic sealing and radiation hardness.

Single Zener Diodes Part Context

This device belongs to the 1N5221BUR-1 thru 1N5281BUR-1 series of 0.5 watt Zener voltage regulators. It serves as a surface mount alternative to the popular axial-leaded 1N5221 to 1N5281 series, offering similar electrical performance in a compact DO-213AA package suitable for automated assembly processes.

Single Zener Diodes Replacement Considerations

The 1N5223B-1 is an available axial-leaded version within the same product family.