1N4098

Single Zener Diodes Overview

The 1N4098 is a high-power Zener diode manufactured by Microchip Technology, designed for robust voltage regulation in demanding environments. It features a hermetically sealed glass package with triple-layer passivation to ensure long-term reliability and protection against environmental stressors. The device operates within an axial leaded configuration, suitable for through-hole mounting on printed circuit boards. Key electrical characteristics include a nominal Zener voltage of 150 V with a tight tolerance of ±5%, ensuring precise voltage reference stability. The component supports a maximum power dissipation of 3 watts, allowing it to handle significant energy loads without thermal failure. Operating temperatures range from -55°C to +125°C, providing wide thermal flexibility for industrial applications.

Single Zener Diodes Feature Summary

• Hermetically sealed voidless glass package for superior environmental protection
• Triple layer passivation enhances durability and resistance to moisture
• Metallurgically bonded construction ensures stable electrical connections
• Microminiature axial package design facilitates compact board integration

Single Zener Diodes Applications

• High-voltage power supply regulation circuits
• Industrial control systems requiring reliable voltage references
• Military and aerospace electronic assemblies
• Overvoltage protection stages in critical infrastructure

Single Zener Diodes Procurement Notes

Verify the manufacturer origin carefully, as the 1N4098 part number is utilized by multiple semiconductor vendors including Microchip, Microsemi, Digitron, and New Jersey Semiconductor. Ensure the specific datasheet matches your required tolerance and package specifications. Confirm that the supplier provides authentic components with traceable documentation. Check for any ordering suffixes that may indicate variations in packaging or compliance status. Cross-reference the lot codes and date codes to ensure freshness and authenticity before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when a high-voltage, high-power Zener diode is required for precision regulation. The 150 V rating makes it suitable for stepping down higher DC bus voltages. Consider the 3 W power dissipation capability for applications involving continuous current flow. The hermetic seal is essential for harsh environments where standard plastic packages might fail. Verify that the axial lead form factor fits the existing PCB layout constraints. Compare alternative manufacturers if cost or availability is a primary driver, ensuring electrical equivalence.

Single Zener Diodes Part Context

This device belongs to the family of high-power glass-encapsulated Zener diodes. It shares functional similarities with other 1N-series Zener diodes but distinguishes itself through its 3-watt power rating and hermetic sealing technology. The product line is commonly used in ruggedized electronics where standard silicon devices would degrade over time. Microchip Technology continues to support this legacy part number alongside its modern discrete semiconductor portfolio.

Single Zener Diodes Replacement Considerations

Direct substitutes include parts from Digitron Semiconductors and New Jersey Semiconductor offering identical 150 V, 3 W specifications. Ensure replacement units maintain the same axial DO-41 or similar hermetic glass package dimensions. Verify that the replacement vendor's datasheet confirms the ±5% tolerance and 125°C max operating temperature. Avoid non-hermetic plastic alternatives unless environmental conditions are benign.