1N5250BUR-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N5250BUR-1/TR is a surface mount Zener voltage regulator in the DO-213AA package. It provides a nominal Zener voltage of 20 V with a 5% tolerance at a test current of 6.2 mA. The device dissipates up to 500 mW and operates within a junction temperature range of -65°C to +175°C. Key electrical parameters include a maximum reverse leakage current of 100 nA, a dynamic impedance of 25 Ohms, and a forward voltage of 1.1 V.

Single Zener Diodes Feature Summary

• Hermetically sealed metallurgically bonded glass surface mount package
• Surface mount equivalent of JEDEC registered 1N5221 thru 1N5281 series
• Inherently radiation hard per Microsemi documentation

Single Zener Diodes Applications

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

Single Zener Diodes Procurement Notes

Verify that the ordering suffix TR indicates tape and reel packaging per EIA-481-B standards. Confirm RoHS compliance status as commercial grade versions are available while others may not be. Ensure the specific part number matches the required 5% voltage tolerance designation B. Validate that the manufacturer source aligns with Microchip Technology or authorized distributors for authenticity.

Single Zener Diodes Selection Notes

Select this component when a hermetically sealed surface mount Zener diode is required for high-reliability environments. The DO-213AA package offers a direct footprint replacement for axial leaded equivalents. Consider the 500 mW power dissipation limit and thermal resistance values during PCB layout planning to ensure operation remains within specified junction temperature limits under all expected load conditions.

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 covers voltages from 2.4 to 200 volts in a metallurgically bonded configuration. These components serve as surface mount equivalents to popular JEDEC registered axial-leaded parts, providing options for various voltage tolerances including 1%, 2%, 5%, and 10%.

Single Zener Diodes Replacement Considerations

The 1N5250B is an axial-leaded equivalent within the same product family.