1N5526C

Overview

The Microchip Technology 1N5526C is a single silicon Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 6.8 V with a tight tolerance of ±2%. The device operates in the DO-204AH (DO-35) axial leaded package, supporting through-hole mounting. Key electrical specifications include a maximum power dissipation of 500 mW, a Zener impedance of 30 Ohms at a test current of 1 mA, and a maximum reverse leakage current of 1 µA at 6.2 V. It functions within an extended temperature range from -65°C to +175°C junction temperature.

Feature Summary

• Provides precise voltage regulation with a narrow ±2% tolerance on the 6.8 V breakdown voltage.
• Engineered for low reverse leakage current to minimize standby power loss.
• Constructed with a hermetically sealed glass DO-204AH package for environmental durability.
• Capable of reliable operation across a wide industrial and military temperature spectrum.

Applications

• Precision voltage reference circuits requiring stable DC levels.
• Overvoltage protection stages in sensitive electronic systems.
• Clamping applications in signal processing paths.
• Biasing networks for transistor amplifiers.

Procurement Notes

Verify the specific suffix designation when ordering, as variants such as JAN1N5526C or 1N5526C-1 may exist with different qualification standards or packaging options. Confirm that the required tolerance matches the ±2% specification of the standard 1N5526C part number. Ensure the procurement channel provides original manufacturer documentation to guarantee authenticity and traceability for critical deployments.

Selection Notes

Select this component when a stable 6.8 V reference is needed with high accuracy. The ±2% tolerance makes it suitable for precision analog circuits where standard 5% parts are insufficient. Consider the DO-204AH package size for board layout constraints. Verify that the 500 mW power rating aligns with the expected thermal environment and current levels in the target design.

Part Context

This component belongs to the standard 1N55xx series of Zener diodes manufactured by Microchip Technology. These devices are widely used in general-purpose electronics for voltage stabilization. The 1N5526C specifically targets applications requiring tighter voltage control than standard commercial grades, offering improved consistency in mass-produced assemblies.

Replacement Considerations

Direct substitutes include other manufacturers' 1N5526C equivalents meeting the same electrical parameters. Variants like 1N5526B (±5%) offer looser tolerances if precision is not critical. Surface-mount alternatives such as the 1N5526BUR-1 provide similar performance in a leadless package for automated assembly processes.