1N5221/TR

Single Zener Diodes Overview

The Microchip Technology 1N5221/TR is a 0.5-watt glass axial-lead Zener diode with a nominal voltage of 2.4V and a test current of 20mA. It operates within a temperature range of -65°C to +175°C and features a DO-35 package. The device provides standard 5% or 10% voltage tolerances, with tighter options available via suffixes. It includes tape-and-reel packaging for automated assembly.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features hermetically sealed glass axial-lead construction for durability
• Offers flexible mounting terminals compatible with standard through-hole processes
• Includes internal bonds in specific variants for enhanced reliability

Single Zener Diodes Applications

• Voltage reference circuits requiring low voltage stability
• Overvoltage protection in sensitive electronic systems
• General-purpose voltage regulation in industrial equipment

Single Zener Diodes Procurement Notes

Verify the exact suffix requirements against your design specifications, as tolerance levels vary significantly between A, B, C, and D designations. Confirm that the tape-and-reel format aligns with your manufacturing equipment capabilities. Ensure thermal derating curves are considered for high-temperature environments to maintain the rated power dissipation safely.

Single Zener Diodes Selection Notes

Select this component when a precise 2.4V reference is needed in a compact axial-lead package. Consider the specific tolerance suffix required for your application's accuracy needs. Evaluate the thermal resistance characteristics if the device will be mounted on FR4 PCBs without adequate copper padding. Verify compatibility with RoHS standards if applicable to your production requirements.

Single Zener Diodes Part Context

This part belongs to the widely recognized 1N5221 through 1N5281B series of Zener diodes. It serves as a surface-mount equivalent option compared to MELF packages like the MLL5221. The series is JEDEC registered, ensuring broad industry compatibility and availability across multiple manufacturers and distribution channels.

Single Zener Diodes Replacement Considerations

Equivalent parts include the MLL5221 for surface mount applications. Variants with different tolerance suffixes (A, B, C, D) offer alternative precision levels. Military screening prefixes (MQ, MX, MV, MSP) provide radiation-hardened options for specialized environments.