1N5231BUR-1

Single Zener Diodes Overview

The Microchip Technology 1N5231BUR-1 is a surface mount Zener diode providing voltage regulation. It features a nominal Zener voltage of 5.1 V with a tolerance of 5%. The device dissipates up to 0.5 W (500 mW) and operates within a junction temperature range of -65°C to +175°C. Key electrical parameters include a maximum dynamic impedance of 17 Ohms, a reverse leakage current of 5 µA at 2 V, and a test current of 20 mA. It utilizes the DO-213AA 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 reliability

Single Zener Diodes Applications

• Voltage regulation in surface mount circuits
• Replacement for through-hole JEDEC registered Zener diodes
• General purpose voltage reference applications

Single Zener Diodes Procurement Notes

Verify the manufacturer designation carefully, as the part number suffix BUR-1 is associated with Microsemi/Microchip. Confirm RoHS compliance status, as commercial versions may differ from screened variants. Ensure the DO-213AA package footprint matches the design requirements. Check for specific screening references such as MIL-PRF-19500 if high-reliability standards are required for the application.

Single Zener Diodes Selection Notes

Select this component when a hermetically sealed surface mount Zener diode is required. It serves as a direct surface mount alternative to the axial 1N5231B. Consider the 5% voltage tolerance and 500 mW power dissipation limits. Verify that the operating temperature range meets the environmental conditions of the target system.

Single Zener Diodes Part Context

This component belongs to the 1N5221BUR-1 through 1N5281BUR-1 series. These devices provide surface mount equivalents to popular JEDEC registered axial Zener diodes. The series covers voltage ranges from 2.4 V to 200 V. They are designed for applications requiring reliable voltage regulation in compact surface mount layouts.

Single Zener Diodes Replacement Considerations

The 1N5231B is the standard axial leaded equivalent. For surface mount replacements, verify pinout compatibility and thermal characteristics. Other manufacturers may offer similar DO-213AA packages with comparable specifications.