1N5248BUR-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N5248BUR-1/TR is a surface mount Zener voltage regulator with a nominal breakdown voltage of 18 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 5% voltage tolerance, a maximum reverse leakage current of 0.1 µA, and a dynamic impedance of 21 Ohms at the test current of 7.0 mA. Packaged in a hermetically sealed DO-213AA (MELF) configuration, it utilizes an internal metallurgical bond for reliability.

Single Zener Diodes Feature Summary

• Hermetically sealed glass DO-213AA MELF package with internal metallurgical bond
• Surface mount equivalent to JEDEC registered axial-leaded series
• Inherently radiation hard design

Single Zener Diodes Applications

• Voltage regulation over broad operating current and temperature ranges
• ESD protection applications requiring minimal capacitance
• Radiation-hardened circuit designs

Single Zener Diodes Procurement Notes

Verify that the specific part number includes the TR suffix to confirm tape and reel packaging compliance with EIA-481-B standards. Confirm RoHS status as commercial grade versions are available with e3 suffixes, while standard versions may differ. Ensure ordering quantities align with manufacturer standard packaging requirements.

Single Zener Diodes Selection Notes

Select this component when a surface mount solution matching the electrical characteristics of the 1N5248B axial series is required. The DO-213AA package provides a compact footprint suitable for automated assembly. Consider the positive temperature coefficient above 5V for thermal stability in high-voltage regulation scenarios.

Single Zener Diodes Part Context

This device belongs to the 1N5221BUR-1 through 1N5281BUR-1 series, which serves as the surface mount counterpart to the widely used JEDEC registered 1N5221 through 1N5281 axial diodes. The series covers a voltage range from 2.4 V to 200 V, offering various tolerance options including 5% for the 'B' designation.

Single Zener Diodes Replacement Considerations

Direct replacement with the axial-leaded 1N5248B is possible if board space allows, though mounting style differs. Surface mount equivalents from other manufacturers must be verified against the DO-213AA dimensions and hermetic sealing requirements.