1N5273BUR-1/TR

Single Zener Diodes Overview

The 1N5273BUR-1/TR is a single Zener diode manufactured by Microchip Technology, designed for surface-mount applications. It features a nominal Zener voltage of 120V with a tolerance of ±5%. The device has a maximum power dissipation of 0.5W and operates within a temperature range of -65°C to +175°C. It utilizes the DO-213AA (MLL34) package, which is a hermetically sealed glass MELF configuration. Key electrical parameters include a maximum reverse leakage current of 2µA at the test current of 5mA and a Zener impedance of 26 Ohms.

Single Zener Diodes Feature Summary

• Hermetically sealed metallurgically bonded glass surface mount package
• Surface mount equivalent to JEDEC registered 1N5221 series
• Extended operating temperature range up to 175°C

Single Zener Diodes Applications

• Voltage regulation in surface-mount circuits
• Overvoltage protection
• Reference voltage sources

Single Zener Diodes Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm tape-and-reel packaging and RoHS compliance status. Ensure the DO-213AA package dimensions match the target PCB footprint. Confirm that the 120V rating and 0.5W power dissipation meet the circuit requirements under all expected thermal conditions.

Single Zener Diodes Selection Notes

Select this component when a hermetically sealed surface-mount Zener diode is required for high-reliability applications. The DO-213AA package provides a compact alternative to through-hole equivalents. Consider the 120V breakdown voltage and 5% tolerance for precise regulation needs. Verify thermal management capabilities for operation near the upper temperature limit.

Single Zener Diodes Part Context

This part belongs to the 1N5221BUR-1 through 1N5281BUR-1 series of 0.5W Zener voltage regulators. These devices offer surface-mount versions of popular JEDEC registered axial leaded parts. The series covers a wide voltage range from 2.4V to 200V, providing designers with standardized options for various regulation tasks in a robust glass encapsulation.

Single Zener Diodes Replacement Considerations

The 1N5273BUR-1 is listed as a parameter-equivalent alternative. Verify pinout compatibility and package dimensions before substitution.