1N2980A

Overview

The 1N2980A is a 16V Zener diode with a 10W power rating and 4 Ohms impedance, manufactured by Microchip Technology. It utilizes a stud-mount configuration within the DO-4 package for robust thermal dissipation. The component serves as a voltage regulator in high-power applications, offering stable regulation characteristics suitable for industrial environments requiring reliable overvoltage protection.

Feature Summary

• High-power 10-watt voltage regulation capability
• Stud-mount construction for efficient heat dissipation
• Low impedance design for stable output voltage

Applications

• Industrial voltage regulation circuits
• Overvoltage protection systems
• Power supply reference standards

Procurement Notes

Verify manufacturer documentation to confirm specific tolerance grades and suffix variations. Ensure compatibility with existing thermal management solutions due to the stud-mount form factor. Cross-reference part numbers carefully as different manufacturers may offer slight parameter variations despite identical base designations.

Selection Notes

Select this component when high power handling and rigid mounting are required. The stud-mount style necessitates appropriate insulating hardware and thermal interface materials. Consider the 16V breakdown voltage relative to circuit requirements and ensure adequate heatsinking capacity for continuous operation at full power ratings.

Part Context

This device belongs to the standard 10-watt Zener diode family, historically significant in military and aerospace electronics. Microchip Technology continues production of legacy parts like the 1N2980A, maintaining availability for long-life equipment where redesign is impractical or undesirable.

Replacement Considerations

Equivalent parts include the 1N2980R from other manufacturers. Verify pinout orientation and case material compatibility before substitution. Some variants may feature hermetic sealing or different tolerance levels.