1N5221BE3

Single Zener Diodes Overview

The Microchip Technology 1N5221BE3 is a 0.5 W glass axial-lead Zener diode in a DO-35 package. It provides a nominal Zener voltage of 2.4 V at a test current of 20 mA, with a maximum Zener impedance of 1200 Ohms and a maximum reverse leakage current of 100 µA at 1 V. The device features a ±5% voltage tolerance, a temperature coefficient of -0.085 %/°C, and operates within a junction temperature range of -65°C to +175°C.

Single Zener Diodes Feature Summary

• Hermetically sealed glass axial-lead construction for environmental stability
• Regulates voltage across a broad operating current and temperature range
• Minimal capacitance characteristics suitable for high-frequency applications
• Inherently radiation hard per MicroNote 050

Single Zener Diodes Applications

• Voltage regulation in electronic circuits
• Reference voltage sources
• Overvoltage protection

Single Zener Diodes Procurement Notes

Verify the specific suffix 'e3' confirms RoHS compliance and matte-tin plating finish as defined by the manufacturer. Confirm that the 'B' suffix corresponds to the required ±5% voltage tolerance for your design specifications. Ensure the component meets the necessary military screening levels if applicable, as these require specific prefix identifiers.

Single Zener Diodes Selection Notes

Select this component when a precise 2.4 V reference is needed with tight ±5% tolerance. Consider the low thermal resistance and wide operating temperature range for demanding environments. Verify that the power dissipation requirements do not exceed 0.5 W without derating. Check if surface mount equivalents are preferred for automated assembly processes.

Single Zener Diodes Part Context

This part belongs to the 1N5221 through 1N5281B series of 0.5 W Zener Voltage Regulators. The series offers a selection from 2.4 to 200 volts with various tolerance options. The 'e3' suffix indicates RoHS compliant devices available in the standard DO-35 glass axial-lead package.

Single Zener Diodes Replacement Considerations

Surface mount equivalents are available as MLL5221 to MLL5281B in the DO-213AA MELF style package. Other variants within the series offer different voltage ratings and tolerances.