1N5529

Overview

The Microchip Technology 1N5529 is a silicon Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 9.1V with a tolerance of 20%. The device is rated for a maximum power dissipation of 500mW and utilizes the DO-41 axial through-hole package. This component operates within a junction temperature range of -65°C to +175°C, ensuring reliability in demanding environments.

Feature Summary

• Provides stable voltage regulation using avalanche breakdown characteristics
• Constructed with hermetically sealed glass encapsulation for environmental protection
• Capable of operation across an extended industrial temperature range

Applications

• Voltage reference circuits requiring stable DC levels
• Overvoltage protection stages in power supplies
• Clamping applications in signal conditioning paths

Procurement Notes

Verify the specific suffix letter (A, B, or C) when ordering, as it dictates the voltage tolerance percentage. Confirm RoHS compliance status, as standard military-grade variants may not meet current environmental directives. Ensure the procurement documentation explicitly states the manufacturer as Microchip Technology to avoid counterfeit components.

Selection Notes

Select this component when a 9.1V reference is required in a standard axial package. Consider the 20% base tolerance; if tighter regulation is needed, choose variants with suffixes indicating 1% or 5% tolerance. Verify that the 500mW power rating suffices for the expected operating current and ambient thermal conditions.

Part Context

This part belongs to the 1N55xx series of low-power surface mount and through-hole Zener diodes manufactured by Microchip Technology. The series offers various voltage options and tolerance grades, catering to general-purpose regulation needs in commercial and military electronics.

Replacement Considerations

Equivalent parts include the 1N5529B (5% tolerance) and 1N5529C (1% tolerance). Cross-reference with other manufacturers' 1N5529 equivalents, ensuring the replacement matches the 9.1V nominal voltage, 500mW power rating, and DO-41 package dimensions.