1N5528C

Overview

The Microchip Technology 1N5528C is a single silicon Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 8.2 V with a tight tolerance of ±2%. The device operates in a through-hole DO-204AH (DO-35) axial package and dissipates up to 500 mW. Key electrical parameters include a maximum reverse leakage current of 500 nA, a Zener impedance of 40 Ohms, and a test current of 1 mA. It supports a wide operating temperature range from -65°C to +175°C.

Feature Summary

• Provides precise voltage regulation with a narrow ±2% tolerance on the 8.2 V reference point.
• Engineered for high-temperature reliability with an extended junction temperature rating up to 175°C.
• Utilizes a standard DO-204AH axial leaded package suitable for robust through-hole circuit integration.

Applications

• Precision voltage reference circuits requiring stable DC levels.
• Overvoltage protection stages in sensitive electronic systems.
• Clamping applications within power supply output lines.

Procurement Notes

Verify the specific suffix 'C' to confirm the ±2% tolerance variant, as other suffixes like 'B' or 'A' indicate different tolerances. Ensure the procurement documentation specifies the DO-204AH package style. Confirm that the component meets the required thermal dissipation standards for your specific application environment before finalizing orders.

Selection Notes

Select this component when strict voltage accuracy is critical, as the C suffix ensures tighter deviation than standard variants. Consider the 500 mW power rating and 175°C thermal limit to ensure safe operation under peak load conditions. Verify that the 40 Ohm impedance aligns with the noise and stability requirements of the target circuit design.

Part Context

This part belongs to the 1N5528 series of Zener diodes manufactured by Microchip Technology. The series offers various tolerance grades, with the 1N5528C representing the highest precision option at ±2%. It shares the same fundamental 8.2 V rating and physical package dimensions as its lower-tolerance counterparts within the family.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.