1N5266BUR-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N5266BUR-1/TR is a surface mount Zener voltage regulator with a nominal breakdown voltage of 68 V. It operates within a temperature range of -65 °C to +175 °C and dissipates up to 0.5 W. The device features a 5% voltage tolerance, a maximum reverse leakage current of 100 nA, and a dynamic impedance of 230 Ohms at a test current of 1.8 mA. Packaged in a hermetically sealed DO-213AA (MELF) glass configuration, the TR suffix indicates tape and reel packaging.

Single Zener Diodes Feature Summary

• Hermetically sealed metallurgically bonded glass surface mount package
• Internal metallurgical bond for enhanced reliability
• Inherently radiation hard construction
• Non-sensitive to electrostatic discharge

Single Zener Diodes Applications

• Voltage regulation over broad operating current and temperature ranges
• Radiation-hardened electronic circuit designs
• High-reliability surface mount assembly processes

Single Zener Diodes Procurement Notes

Verify that the ordering suffix matches the required packaging format, as the TR designation specifically denotes tape and reel supply. Confirm RoHS compliance status if environmental regulations apply, noting that commercial grade versions may differ from standard screening levels. Ensure the selected part number aligns with the specific voltage tolerance requirements defined by the manufacturer's nomenclature system.

Single Zener Diodes Selection Notes

Select this component when a surface mount equivalent to the JEDEC registered 1N5221 series is required. The device provides a stable 68 V reference point with tight tolerance specifications suitable for precision applications. Consider the low capacitance characteristics and high thermal stability for circuits demanding consistent performance across wide temperature variations.

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 offers a comprehensive selection of voltages ranging from 2.4 to 200 volts in a compact surface mount form factor. These components serve as direct replacements for traditional axial-leaded equivalents while providing improved mechanical robustness and automated assembly compatibility.

Single Zener Diodes Replacement Considerations

The 1N5266B/TR serves as a through-hole alternative offering identical electrical parameters in a DO-35 package.