1N5224A

Single Zener Diodes Overview

The 1N5224A is a silicon unidirectional Zener diode manufactured by Microsemi, housed in a hermetically sealed glass DO-35 (DO-204AH) axial package. It features a nominal Zener voltage of 2.8 V with a tolerance of ±10% and a maximum power dissipation of 0.48 W. The device exhibits a maximum dynamic impedance of 30 Ω and supports an operating temperature range from -65 °C to +175 °C.

Single Zener Diodes Feature Summary

• Hermetically sealed glass construction for environmental protection
• Metallurgically bonded internal structure
• Wide thermal operating capability up to 175 °C

Single Zener Diodes Applications

• Voltage regulation in harsh environments
• Overvoltage protection circuits
• Reference voltage generation

Single Zener Diodes Procurement Notes

Verify the manufacturer designation carefully, as this specific part number is associated with Microsemi rather than Microchip Technology. Confirm that the hermetic sealing and metallurgical bonding specifications meet the requirements for aerospace or defense applications where environmental robustness is critical.

Single Zener Diodes Selection Notes

Select this component when a low-voltage reference of 2.8 V is required in a compact axial glass package. Ensure the design accounts for the 0.48 W power limit and the 30 Ω dynamic impedance. Verify compatibility with high-temperature environments up to 175 °C junction temperature.

Single Zener Diodes Part Context

This component belongs to the standard Zener diode category utilizing a DO-35 glass envelope. It serves as a discrete voltage regulation element within semiconductor networks, distinct from integrated solutions.

Single Zener Diodes Replacement Considerations

Cross-reference with other hermetically sealed DO-35 Zener diodes offering a 2.8 V nominal voltage and similar power ratings.