1N5244BUR-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N5244BUR-1/TR is a surface mount Zener voltage regulator in the 1N5221BUR-1 through 1N5281BUR-1 series. It provides a nominal Zener voltage of 14 V with a ±5% tolerance at a test current of 8.5 mA. The device operates within a junction temperature range of -65°C to +175°C and dissipates up to 0.5 W. Key electrical parameters include a maximum reverse leakage current of 0.1 µA, a dynamic impedance of 15 Ohms at IZT, and a positive temperature coefficient of +0.082 %/°C.

Single Zener Diodes Feature Summary

• Hermetically sealed metallurgically bonded glass surface mount package
• Inherently radiation hard design
• Non-sensitive to electrostatic discharge
• Minimal capacitance characteristics

Single Zener Diodes Applications

• Voltage regulation over broad operating current and temperature ranges
• High-reliability electronic circuits requiring radiation hardness
• Surface mount equivalents for JEDEC registered axial-leaded series

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 with e3 suffixes. Ensure the specific part number matches the required 5% voltage tolerance designation B. Check datasheet notes regarding MIL-PRF-19500 screening availability if military-grade reliability is required.

Single Zener Diodes Selection Notes

Select this component when a hermetically sealed surface mount solution is needed for high-reliability applications. The metallurgical bond ensures durability compared to standard epoxy packages. Consider the positive temperature coefficient for thermal stability requirements. Verify that the 0.5 W power dissipation rating aligns with the thermal resistance and ambient temperature conditions of the target circuit board.

Single Zener Diodes Part Context

This device belongs to the 1N5221BUR-1 through 1N5281BUR-1 series, which serves as a surface mount equivalent to the popular JEDEC registered 1N5221 to 1N5281 series. The series covers Zener voltages from 2.4 to 200 volts. The BUR-1 designation specifically denotes the metallurgically bonded surface mount package configuration with a 5% voltage tolerance.

Single Zener Diodes Replacement Considerations

The 1N5244BUR-1 is the parameter-equivalent non-tape-and-reel version of this component.