1N2842B

Overview

The Microchip Technology 1N2842B is a Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 130V and operates with a test current of 95mA. The device exhibits a maximum dynamic impedance of 50 ohms at the specified test conditions. It is constructed for through-hole mounting, utilizing a standard axial leaded package configuration suitable for general-purpose circuit protection and reference voltage generation tasks.

Feature Summary

• Provides stable voltage regulation at a nominal 130V potential
• Engineered for high-current operation with a 95mA test rating
• Features low dynamic impedance characteristics for precise clamping

Applications

• High-voltage power supply regulation circuits
• Overvoltage protection stages in industrial equipment
• Precision voltage reference sources requiring 130V stability

Procurement Notes

Verify the specific suffix designation against official Microchip documentation to confirm tolerance grades and testing standards. Ensure the procurement channel provides valid traceability records for this component. Confirm that the received units match the exact part number specifications regarding voltage tolerance and thermal ratings before integration into final assemblies.

Selection Notes

Select this component when a fixed 130V regulation point is required within a through-hole design constraint. Evaluate the thermal dissipation requirements based on the operating current to ensure the package can handle the power load. Compare the dynamic impedance specification against circuit sensitivity requirements to verify adequate performance for noise-sensitive applications.

Part Context

This component belongs to the standard Zener diode family manufactured by Microchip Technology. It serves as a discrete semiconductor solution for maintaining constant voltage levels across varying load conditions. The axial leaded form factor distinguishes it from surface-mount alternatives, catering to traditional PCB layouts and high-reliability mechanical mounting needs.

Replacement Considerations

Consult official Microchip substitution guides for compatible equivalents. Verify that any alternative maintains the 130V Zener voltage and comparable 95mA current handling capabilities. Ensure pinout compatibility and package dimensions match the existing footprint to avoid redesign efforts.