1N4625DUR-1

Overview

The Microchip Technology 1N4625DUR-1 is a single Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 5.1 V with a tolerance of ±2%. The device operates in the DO-213AA (SOD-80) surface-mount package and supports a maximum power dissipation of 500 mW. Key electrical parameters include a maximum reverse leakage current of 5 µA at 3 V, a Zener impedance of 1500 Ohms, and a test current of 250 µA. The component is qualified to MIL-PRF-19500/435 standards and functions within an operating temperature range of -65°C to +175°C.

Feature Summary

• Provides stable voltage regulation with a nominal 5.1 V Zener breakdown voltage.
• Offers high precision with a tight ±2% voltage tolerance specification.
• Engineered for extreme environments with an extended operating temperature range from -65°C to +175°C.
• Utilizes a compact DO-213AA surface-mount package for automated assembly integration.

Applications

• Military aerospace electronic systems requiring radiation-hardened or high-reliability components
• Precision voltage reference circuits in harsh operational environments
• Overvoltage protection stages in critical communication equipment
• Power supply regulation modules for defense-grade instrumentation

Procurement Notes

Verify that the specific part number suffix matches the required military qualification standard, as variations exist within the family. Confirm the package type corresponds to the DO-213AA form factor intended for surface-mount assembly. Ensure compliance with relevant export control classifications and environmental directives applicable to defense procurement contracts before finalizing orders.

Selection Notes

Select this component when a precise 5.1 V reference is required in a surface-mount configuration. The ±2% tolerance makes it suitable for applications demanding tighter accuracy than standard commercial grades. Consider the 500 mW power rating and thermal management requirements for the specific PCB layout. Verify that the operating temperature range meets the system's environmental specifications.

Part Context

This component belongs to the 1N4625 series of low-noise Zener diodes manufactured by Microchip Technology. The 'DUR' suffix indicates a specific surface-mount package variant and manufacturing lot code associated with the company's high-reliability product line. These devices are typically utilized in sectors where standard commercial semiconductors do not meet the rigorous reliability and performance standards required.

Replacement Considerations

Direct replacements must match the 5.1 V Zener voltage, 500 mW power rating, and DO-213AA package. Equivalent parts should maintain similar leakage current and impedance characteristics. Verify that any substitute component holds comparable military or industrial qualifications if used in regulated applications.