1N5529B-1/TR

Overview

The Microchip Technology 1N5529B-1/TR is a single silicon Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 9.1 V with a tolerance of ±5%. The device operates in the DO-204AH (DO-35) through-hole package, dissipating up to 500 mW of power. Key electrical parameters include a maximum reverse leakage current of 10 nA and a Zener impedance of 45 Ohms at a test current of 1 mA. It supports a forward current of 200 mA and functions within an extended temperature range from -65°C to +175°C.

Feature Summary

• Provides stable voltage regulation with tight tolerance specifications for precision circuits.
• Capable of operation across an extended industrial temperature range for harsh environments.
• Utilizes a standard axial leaded package suitable for through-hole mounting techniques.

Applications

• Voltage reference sources in analog signal processing circuits
• Overvoltage protection stages in power supply inputs
• Clamping applications in transient voltage suppression networks

Procurement Notes

Verify the specific suffix configuration against official Microchip documentation to ensure compatibility with required military or commercial standards. Confirm that the reel packaging quantity aligns with production requirements. Cross-reference the datasheet revision date to validate parameter accuracy before integration into final designs.

Selection Notes

Select this component when a precise 9.1 V regulation point is required with low leakage characteristics. Ensure the circuit design accommodates the 500 mW power dissipation limit under worst-case thermal conditions. Verify that the through-hole footprint matches the PCB layout constraints for the DO-204AH package style.

Part Context

This part belongs to the established 1N55xx series of Zener diodes manufactured by Microchip Technology. The series is widely recognized for reliability in general-purpose regulation tasks. The '-1' designation typically indicates specific testing or screening criteria defined by the manufacturer's internal quality standards for this product line.

Replacement Considerations

Direct substitutes must match the 9.1 V Zener voltage, 500 mW power rating, and DO-204AH package. Verify equivalent impedance and leakage current specifications to maintain circuit performance integrity during cross-brand replacement scenarios.