1N5275BUR-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N5275BUR-1/TR is a surface mount Zener voltage regulator with a nominal breakdown voltage of 140 V. It operates within a junction temperature range of -65 °C to +175 °C and dissipates up to 0.5 W. The device features a metallurgically bonded glass DO-213AA package, offering hermetic sealing. Electrical characteristics include a maximum reverse leakage current of 4500 µA at the rated voltage and a dynamic impedance of 1300 Ohms at the test current of 0.90 mA.

Single Zener Diodes Feature Summary

• Hermetically sealed surface mount configuration utilizing an internal metallurgical bond for reliability.
• Provides stable voltage regulation across a broad operating current and temperature range.
• Inherently radiation hard per Microsemi documentation.

Single Zener Diodes Applications

• Voltage regulation in harsh environments requiring radiation hardness.
• Power supply circuits needing stable reference voltages.
• Protection against overvoltage transients in sensitive electronics.

Single Zener Diodes Procurement Notes

Verify the specific suffix requirements for tape and reel packaging when ordering. Confirm RoHS compliance status as it varies by commercial grade availability. Ensure the selected part number matches the required voltage tolerance level for the intended circuit design specifications.

Single Zener Diodes Selection Notes

Select this component for applications requiring a 140 V Zener voltage in a compact surface mount form factor. Consider the high dynamic impedance and leakage current limits when designing precision regulation circuits. Verify thermal derating curves if operating near maximum power dissipation limits.

Single Zener Diodes Part Context

This device belongs to the 1N5221BUR-1 through 1N5281BUR-1 series of 0.5 watt Zener regulators. It serves as the surface mount equivalent to the JEDEC registered axial-leaded 1N5221 to 1N5281 series, maintaining similar electrical performance in a smaller footprint.

Single Zener Diodes Replacement Considerations

Direct replacements include other 1N5275 variants from Microchip or compatible manufacturers offering identical 140 V ratings in DO-213AA packages. Verify pinout compatibility and thermal resistance values before substitution.