1N5264BUR-1

Single Zener Diodes Overview

The Microchip Technology 1N5264BUR-1 is a surface mount Zener voltage regulator with a nominal breakdown voltage of 60 V at a test current of 2.1 mA. It operates within a junction temperature range of -65 °C to +175 °C and dissipates up to 0.5 W. The device features a hermetically sealed DO-213AA glass package with an internal metallurgical bond. Electrical specifications include a maximum reverse leakage current of 14 µA, a dynamic impedance of 170 Ohms, and a positive temperature coefficient of +0.097 %/°C.

Single Zener Diodes Feature Summary

• Hermetically sealed glass MELF-style package with internal metallurgical bonding for enhanced reliability.
• Surface mount form factor providing a direct equivalent to the JEDEC registered axial-leaded series.
• Inherently radiation hard construction suitable for demanding environments.

Single Zener Diodes Applications

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

Single Zener Diodes Procurement Notes

Verify the specific suffix letters on the part number to confirm the exact voltage tolerance class (e.g., B indicates 5%) and RoHS compliance status. Confirm whether screening in reference to MIL-PRF-19500 is required for the intended application environment. Ensure the ordering suffix matches the desired terminal plating configuration.

Single Zener Diodes Selection Notes

Select this component when a ruggedized surface mount solution is needed for precise voltage clamping or regulation. The DO-213AA package offers a compact footprint compared to traditional axial leads while maintaining high thermal stability. Consider the positive temperature coefficient characteristics when designing circuits sensitive to thermal drift.

Single Zener Diodes Part Context

This device belongs to the 1N5221BUR-1 through 1N5281BUR-1 series of 0.5 watt Zener regulators. The series covers a wide voltage range from 2.4 V to 200 V, offering various tolerance options including 1%, 2%, 5%, and 10%. These components serve as the surface mount counterparts to the widely used JEDEC registered axial-leaded diodes.

Single Zener Diodes Replacement Considerations

Direct replacements include other manufacturers' equivalents in the DO-213AA (SOD-80) package with matching 60 V Zener voltage and 0.5 W power rating. Verify that any substitute maintains the hermetic seal and metallurgical bond requirements if radiation hardness is critical.