1N1369

Overview

The Microchip Technology 1N1369 is a glass-passivated Zener diode designed for voltage regulation and reference applications. It features a nominal Zener voltage of 56 V with a maximum power dissipation of 10 W. The device utilizes the DO-203AA (DO-4) axial leaded package, suitable for through-hole mounting. It operates within a specified temperature range to ensure stable performance in general-purpose circuits requiring reliable voltage clamping or regulation.

Feature Summary

• Glass passivation provides environmental protection and long-term stability
• High power dissipation capability of 10 W supports robust voltage regulation
• Axial DO-203AA package facilitates easy through-hole integration

Applications

• General-purpose voltage regulation circuits
• Voltage reference sources in electronic systems
• Overvoltage protection and clamping applications

Procurement Notes

Verify the manufacturer origin, as multiple entities produce this legacy part number. Confirm the package style matches DO-203AA requirements. Ensure the supplier is an authorized distributor for Microchip products to guarantee authenticity and traceability. Check datasheet revisions for any parameter updates before finalizing procurement specifications.

Selection Notes

Select this component when a 56 V Zener voltage with 10 W power handling is required. The DO-203AA package is appropriate for high-current or high-power thermal management needs compared to smaller packages. Consider the glass passivation for environments requiring enhanced durability. Verify that the operating temperature range aligns with the specific application constraints.

Part Context

The 1N1369 belongs to the standard Zener diode family, historically significant in analog circuit design. Originally associated with Semicon Components Inc., production rights have transitioned to Microchip Technology. This part represents a legacy industry standard often used in industrial and commercial equipment where reliability and established performance characteristics are prioritized over miniaturization.

Replacement Considerations

Direct substitutes include other manufacturers' 1N1369 equivalents meeting the same electrical specifications. Cross-reference with parts from vendors like American Microsemiconductor or TS/NAE if sourcing flexibility is needed. Ensure replacement parts maintain the 56 V Zener voltage and 10 W power rating. Verify package compatibility with existing PCB footprints.