1N2841A

Overview

The Microchip Technology 1N2841A is a high-reliability silicon Zener diode designed for voltage regulation applications. It features a nominal reference voltage of 120 V with a tolerance of ±20%. The device is constructed using unidirectional configuration and operates within an extended temperature range from -65 °C to +175 °C. It utilizes a metal disk button package (O-MEDB-N2) with matte tin terminals, ensuring robust performance in demanding environments.

Feature Summary

• High reliability construction suitable for critical electronic systems
• Extended operating temperature capability up to 175 °C
• Metal disk button package design for thermal stability

Applications

• Voltage regulation in aerospace electronics
• Overvoltage protection in military-grade circuits
• Reference voltage sources in harsh environment instrumentation

Procurement Notes

Verify the specific suffix or variant against official Microchip documentation to ensure compatibility with required tolerance and packaging specifications. Confirm RoHS status and environmental compliance requirements prior to ordering, as legacy high-reliability parts may have distinct regulatory classifications compared to standard commercial components.

Selection Notes

Select this component when a stable 120 V reference is required in extreme thermal conditions. The metal case offers superior heat dissipation compared to plastic packages. Ensure circuit design accounts for the wide ±20% voltage tolerance inherent to this specific part number to maintain system accuracy under varying load conditions.

Part Context

This part belongs to the 1N28xx series of high-reliability Zener diodes manufactured by Microchip Technology. These components are typically utilized in sectors requiring long-term availability and proven performance under stress, such as defense and space exploration, where standard commercial alternatives may not meet qualification standards.

Replacement Considerations

Consult official Microchip cross-reference guides for verified substitutes. Generic equivalents may lack the specific high-reliability qualifications or exact thermal characteristics required for this application.