1N4624UR

Overview

The Microchip Technology 1N4624UR is a Zener voltage regulator diode designed for surface-mount applications. It features a nominal Zener voltage of 4.7 V with a tolerance of ±5%. The device operates within a power dissipation limit of 500 mW and utilizes the DO-213AA (SMB) package. Key electrical characteristics include a maximum reverse leakage current of 5 µA at 3 V, a Zener impedance of 1550 Ohms, and a forward voltage of 1.1 V at 200 mA. The component supports an extended operating temperature range from -65°C to +175°C.

Feature Summary

• Metallurgically bonded glass construction for enhanced reliability
• Surface-mount DO-213AA package design
• Wide operating temperature capability

Applications

• Voltage regulation in military circuits
• High-reliability aerospace systems
• Precision reference voltage generation

Procurement Notes

Verify the specific suffix configuration against official datasheets to ensure correct package type and tolerance. Confirm RoHS compliance status as commercial variants may differ from qualified versions. Cross-reference part numbers with manufacturer documentation to distinguish between standard and high-reliability grades before procurement.

Selection Notes

Select this component when surface-mount technology is required for Zener regulation. Ensure the 500 mW power rating meets circuit thermal requirements. Verify that the 4.7 V nominal voltage aligns with system specifications. Consider the DO-213AA footprint constraints during PCB layout design.

Part Context

This device belongs to the 1N4624 series of Zener diodes manufactured by Microchip Technology. It shares functional similarities with through-hole equivalents but offers surface-mount integration. The series provides stable voltage regulation across a wide temperature range, suitable for demanding electronic environments.

Replacement Considerations

Equivalent parts include JAN1N4624UR-1 and JANTX1N4624UR-1. Verify package compatibility and electrical tolerances before substitution.