1N5221BE3/TR

Single Zener Diodes Overview

The Microchip Technology 1N5221BE3/TR is a 0.5 W glass axial-lead Zener diode with a nominal voltage of 2.4 V and ±5% tolerance. It operates within a temperature range of -65°C to +175°C, featuring a maximum reverse current of 20 µA at 30 V and a test current of 20 mA. The device utilizes a DO-35 package, offers minimal capacitance, and includes an internal metallurgical bond.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features minimal capacitance for high-frequency applications
• Includes an internal metallurgical bond for enhanced reliability
• Inherently radiation hard per MicroNote 050

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection
• Temperature compensation

Single Zener Diodes Procurement Notes

Verify the specific suffix configuration against official datasheets to confirm RoHS compliance and tape-and-reel packaging specifications. Ensure that the required screening levels match the JEDEC registered standards or military requirements if applicable. Confirm thermal derating curves align with your system's power dissipation constraints before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a low-voltage Zener regulator with tight tolerance is required in a through-hole package. Consider the -65°C to +175°C operating range for harsh environments. Evaluate the minimum test current of 20 mA to ensure adequate biasing in your circuit design for optimal impedance performance.

Single Zener Diodes Part Context

This part belongs to the popular 1N5221 thru 1N5281B series of 0.5 watt Zener Voltage Regulators. The series provides a selection from 2.4 to 200 volts in standard tolerances. These glass axial-leaded DO-35 Zeners are widely used for general-purpose voltage regulation and protection tasks.

Single Zener Diodes Replacement Considerations

Surface mount equivalents are available as MLL5221 to MLL5281B in the DO-213AA MELF style package. DO-7 glass body axial-leaded equivalents are also available for alternative mounting configurations.