1N3012B

Overview

The Microchip Technology 1N3012B is a hermetically sealed Zener diode with an internal solder bond construction. It features a nominal Zener voltage of 160V and a power dissipation rating of 10W. The device is housed in a DO-4 (DO-203AA) stud-mount package, designed for high-reliability applications requiring stable voltage regulation under significant thermal loads.

Feature Summary

• Hermetically sealed welded construction for environmental protection
• Internal solder bond technology for enhanced mechanical stability
• High power handling capability suitable for robust circuit protection

Applications

• High-voltage power supply regulation
• Industrial control system overvoltage protection
• Military and aerospace electronic circuits

Procurement Notes

Verify the manufacturer marking against official Microchip Technology documentation to ensure authenticity. Confirm the package style matches the required DO-4 stud mount configuration. Check for specific JEDEC registration numbers if compliance with military standards is required for your application.

Selection Notes

Select this component when a 160V Zener reference is needed in a high-power environment. Ensure the mounting surface can dissipate 10W of heat effectively. Verify that the DO-4 package dimensions fit the available chassis space and that the stud mounting method aligns with the design constraints.

Part Context

This part belongs to the registered 1N2970 through 1N3015B series of Zener diodes manufactured by Microchip Technology. These components are characterized by their ruggedized construction and are intended for demanding environments where standard plastic-packaged diodes may fail due to thermal or mechanical stress.

Replacement Considerations

Equivalent parts include the 1N3012B from New Jersey Semiconductor and Digitron Semiconductors. Verify pinout compatibility and thermal resistance characteristics before substitution.