1N5224

Single Zener Diodes Overview

The Microchip Technology 1N5224 is a silicon Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 2.8V with a tolerance of 20%. The device is rated for a maximum power dissipation of 0.417W and operates within a temperature range of -65°C to 175°C. It is housed in a hermetically sealed glass DO-7 (DO-204AA) axial leaded package with two pins. This component belongs to the broader 1N5221 through 1N5281B series, which offers various voltage options in standard DO-35 packages.

Single Zener Diodes Feature Summary

• Hermetically sealed glass construction for environmental protection
• Single unidirectional Zener configuration
• Wide operating temperature capability suitable for demanding conditions

Single Zener Diodes Applications

• Voltage regulation circuits
• Reference voltage sources
• Overvoltage protection

Single Zener Diodes Procurement Notes

Verify compliance status as the specific 1N5224 part may not be RoHS compliant compared to newer suffix variants like 1N5224B. Confirm package authenticity as DO-7 or DO-204AA. Check for military screening prefixes if required for aerospace or defense specifications. Ensure the manufacturer source is Microsemi or Microchip Technology.

Single Zener Diodes Selection Notes

Select this component when a 2.8V reference with 20% tolerance is required in a through-hole glass package. Consider the 1N5224B variant if tighter 5% tolerance or RoHS compliance is necessary. Evaluate thermal management needs given the 0.417W power rating. Verify that the axial lead form factor fits the PCB layout constraints.

Single Zener Diodes Part Context

This part is part of the popular 1N5221 through 1N5281B series of 0.5 watt Zener Voltage Regulators. While the general series supports up to 500mW, this specific 1N5224 designation lists 0.417W. The series provides voltages from 2.4V to 200V. Microchip Technology continues to support these legacy parts alongside modern alternatives.

Single Zener Diodes Replacement Considerations

The 1N5224B is a direct functional replacement offering 5% tolerance instead of 20%. For surface mount applications, the CDLL5224 provides equivalent electrical characteristics in a MELF package.