1N4689

Overview

The Microchip Technology 1N4689 is a Zener diode designed for voltage regulation applications. It utilizes a DO-35 glass axial leaded package suitable for through-hole mounting. The device provides a nominal Zener voltage of 5.6 V with a standard tolerance of ±5%. It features a maximum power dissipation of 500 mW and operates within a temperature range from -65 °C to +175 °C. Key electrical characteristics include a test current of 50 µA, a maximum reverse leakage current of 10 µA, and a forward voltage of 1.1 V at a forward current of 200 mA.

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range.
• Features inherent radiation hardness suitable for demanding environments.
• Utilizes a hermetically sealed glass DO-35 package for durability.

Applications

• Voltage reference circuits
• Overvoltage protection
• General-purpose voltage regulation

Procurement Notes

Verify the specific manufacturing source and compliance status before procurement. Confirm that the component meets all required environmental and reliability standards for the intended application. Ensure compatibility with existing supply chain requirements and quality assurance protocols.

Selection Notes

Select this component when a reliable 5.6 V regulation point is needed in a through-hole configuration. Consider the wide operating temperature range and radiation hardness if the environment requires high reliability. Verify that the 500 mW power rating and 5% voltage tolerance align with circuit design specifications.

Part Context

This part belongs to the JEDEC registered 1N4678 through 1N4717 series of Zener voltage regulators. These components are widely recognized for their consistent performance in standard voltage regulation tasks. The 1N4689 specifically addresses the need for a 5.6 V reference in legacy and modern through-hole designs.

Replacement Considerations

Equivalent surface mount options exist within the same series, such as the 1N4689UR-1 in a DO-213AA package. When substituting, ensure the replacement maintains the required voltage tolerance, power dissipation, and thermal characteristics.