1N3000B

Overview

The Microchip Technology 1N3000B is a hermetically sealed silicon Zener diode designed for high-reliability applications. It features a nominal Zener voltage of 62V with a tolerance of 5% and a power dissipation rating of 10W. The device utilizes a DO-4 glass axial leaded package, ensuring durability in harsh environments. Key electrical characteristics include a maximum reverse leakage current of 10µA at the rated voltage and a specified test current for regulation verification. Operating temperatures range from -65°C to +175°C, supporting demanding industrial and military specifications.

Feature Summary

• Hermetically sealed construction for environmental protection
• High power dissipation capability for robust voltage regulation
• Wide operating temperature range suitable for extreme conditions

Applications

• Military aerospace voltage reference circuits
• Industrial control system protection
• High-reliability power supply regulation

Procurement Notes

Verify the specific manufacturer source, as this part number has been produced by multiple entities including Microsemi and Motorola. Confirm that the received component matches the required MIL-spec or commercial grade standards. Ensure the DO-4 package dimensions and pin configuration align with the design constraints. Request certification documents to validate the hermetic seal integrity and material composition for critical deployments.

Selection Notes

Select this component when a stable 62V reference is required in high-power scenarios. The 10W rating allows for significant current handling compared to standard small-signal diodes. Consider the thermal management requirements associated with the DO-4 package. Verify compatibility with existing circuit layouts due to the through-hole axial lead format. Ensure the 5% tolerance meets the precision needs of the target application.

Part Context

This device belongs to the standard Zener diode family used for voltage regulation and clamping. It serves as a rugged alternative to lower-power surface-mount options. The hermetic sealing distinguishes it from non-sealed commercial variants, making it suitable for defense and space applications where moisture resistance is critical.

Replacement Considerations

Check for direct equivalents such as JANTX1N3000B which shares identical electrical parameters. Verify pinout compatibility before substituting with other 62V 10W Zener diodes. Ensure any replacement maintains the hermetic seal requirement if the original specification mandates it.