1N5529D/TR

Overview

The Microchip Technology 1N5529D/TR is a silicon Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 9.1 V with a tight tolerance of ±1%. The device is rated for a maximum power dissipation of 0.5 W (500 mW) and operates in the DO-35 (DO-204AH) axial through-hole package. Key electrical characteristics include a test current of 1 mA, an impedance of 35 Ohms at the test point, and a leakage current of 1 µA at the reverse voltage rating.

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Ensures precise voltage control with guaranteed voltage regulation from minimum to test currents
• Utilizes hermetically sealed glass axial construction for environmental durability

Applications

• Precision voltage reference circuits
• Overvoltage protection stages
• Biasing networks in analog signal processing

Procurement Notes

Verify the specific suffix configuration against the original design specification to ensure compatibility with required tolerance and packaging standards. Confirm that the procurement source provides authentic Microchip Technology components to guarantee adherence to military-grade or industrial-grade reliability specifications associated with this part number family.

Selection Notes

Select this component when a fixed 9.1 V reference with high precision is required in a through-hole assembly. The low test current of 1 mA makes it suitable for low-power biasing applications where minimal quiescent current draw is critical. Ensure the circuit design accounts for the 0.5 W thermal limit under worst-case ambient conditions.

Part Context

This component belongs to the standard 1N55xx series of Zener diodes manufactured by Microchip Technology. The series offers a wide selection of voltage values ranging from 3.3 V to 33 V, all sharing similar axial glass package formats. The 1N5529 variant specifically targets the 9.1 V segment of this regulated voltage lineup.

Replacement Considerations

Compatible substitutes include JANTX1N5529D-1TR and JANTXV1N5529UR-1 from Microchip, which offer equivalent electrical performance with potentially different qualification levels or packaging variations.