1N5231BUR-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N5231BUR-1/TR is a surface mount Zener diode with a nominal voltage of 5.1 V and a maximum power dissipation of 500 mW. It features a ±5% voltage tolerance and a maximum dynamic impedance of 17 Ohms at a test current of 20 mA. The device operates within a junction temperature range of -65°C to 175°C and utilizes the DO-213AA (SOD-80) package.

Single Zener Diodes Feature Summary

• Hermetically sealed metallurgically bonded glass surface mount package
• Surface mount equivalent to JEDEC registered 1N5221 through 1N5281 series
• Internal metallurgical bond for enhanced reliability

Single Zener Diodes Applications

• Voltage regulation in surface mount circuits
• Replacement for through-hole 1N5231B in compact designs
• General purpose Zener applications requiring hermetic sealing

Single Zener Diodes Procurement Notes

Verify that the specific suffix matches the required tolerance and packaging configuration. Confirm RoHS compliance status as commercial versions may differ from military screened parts. Ensure the supplier provides documentation confirming the metallurgically bonded construction and hermetic seal integrity for critical applications.

Single Zener Diodes Selection Notes

Select this component when a hermetically sealed surface mount Zener diode is required to replace traditional axial lead equivalents. It is suitable for environments demanding high thermal stability and reliable voltage reference performance. Consider the DO-213AA footprint constraints during PCB layout design.

Single Zener Diodes Part Context

This part belongs to the 1N5221BUR-1 through 1N5281BUR-1 series, which provides surface mount equivalents to popular JEDEC registered Zener diodes. The series covers voltage ranges from 2.4 to 200 volts with various tolerance options. The BUR-1 designation indicates a specific hermetically sealed surface mount package variant manufactured by Microsemi/Microchip.

Single Zener Diodes Replacement Considerations

Direct pin-compatible replacement for 1N5231B in surface mount layouts. Verify that the 500 mW power rating and 5.1 V breakdown voltage match the circuit requirements. Check if the hermetic seal is necessary compared to standard non-hermetic SOD-80 packages.