1N5260BUR-1

Single Zener Diodes Overview

The Microchip Technology 1N5260BUR-1 is a 43 V Zener voltage regulator diode with a 500 mW power dissipation rating. It utilizes a hermetically sealed DO-213AA (SOD80/MLL34) surface mount package featuring an internal metallurgical bond. The device maintains a nominal Zener voltage of 43 V at a test current of 3.0 mA, with a maximum dynamic impedance of 93 Ohms and a reverse leakage current of 0.1 µA. It operates within a junction temperature range of -65°C to +175°C.

Single Zener Diodes Feature Summary

• Hermetically sealed glass surface mount package with internal metallurgical bond
• Surface mount equivalent of JEDEC registered 1N5221 thru 1N5281 series
• Non-sensitive to electrostatic discharge per MIL-STD-750 method 1020
• Inherently radiation hard

Single Zener Diodes Applications

• Voltage regulation over broad operating current and temperature ranges
• Circuits requiring minimal capacitance
• Radiation-hardened electronic systems

Single Zener Diodes Procurement Notes

Verify the specific suffix letter in the part number to confirm the exact voltage tolerance required for the application. Confirm whether RoHS compliance is necessary, as commercial grade versions are available with this designation while others may not be. Ensure the ordering quantity aligns with tape and reel options if indicated by a TR suffix.

Single Zener Diodes Selection Notes

Select this component when a surface mount solution matching the electrical characteristics of the axial 1N5260 series is required. Consider the metallurgically bonded construction for applications demanding high reliability or radiation hardness. Verify that the 5% tolerance meets circuit requirements and check thermal derating curves for high ambient temperature environments.

Single Zener Diodes Part Context

This device belongs to the 1N5221BUR-1 through 1N5281BUR-1 series of 0.5 watt Zener voltage regulators. The series provides a surface mount alternative to popular JEDEC registered axial-leaded devices, covering a voltage range from 2.4 to 200 volts in a compact DO-213AA package.

Single Zener Diodes Replacement Considerations

The 1N5260B is the direct axial-leaded equivalent. For surface mount replacements, verify parameter equivalence with other manufacturers' DO-213AA Zener diodes rated at 43 V and 500 mW.