1N5524DUR-1

Overview

The 1N5524DUR-1 is a single Zener diode manufactured by Microchip Technology, designed for surface mount applications. It features a nominal Zener voltage of 5.6 V with a tight tolerance of ±1%. The device is rated for a maximum power dissipation of 500 mW and operates within a low impedance profile of 30 Ohms. Packaged in the DO-213AA (MLL34) glass MELF format, it provides reliable voltage regulation for compact electronic circuits requiring precise low-voltage reference stability.

Feature Summary

• Provides stable voltage regulation using avalanche breakdown characteristics
• Utilizes hermetically sealed glass MELF construction for environmental protection
• Offers high precision voltage tolerance suitable for sensitive circuitry

Applications

• Low voltage reference circuits
• Voltage clamping and protection stages
• Precision regulator biasing networks

Procurement Notes

Verify the specific suffix designation to confirm tolerance and packaging variations. Ensure compatibility with DO-213AA footprint requirements during PCB layout. Confirm RoHS status if restricted substances are mandated for the final assembly process. Cross-reference manufacturer datasheets for thermal derating curves before implementation in high-temperature environments.

Selection Notes

Select this component when a 5.6 V reference with ±1% accuracy is required in a surface mount package. Consider the 500 mW power rating against expected operating currents. Evaluate the 30 Ohm impedance for noise sensitivity in the target application. Compare against standard axial equivalents if board space permits alternative form factors.

Part Context

This part belongs to the 1N55xx series of low voltage surface mount Zener diodes. It shares the DO-213AA package with variants offering different voltage ratings and tolerance levels. The series is characterized by its glass passivation and metallurgical bonding, ensuring reliability in harsh conditions compared to plastic encapsulated alternatives.

Replacement Considerations

Direct substitutes include JANTX1N5524DUR-1 for enhanced radiation hardness or 1N5524BUR-1 for relaxed ±5% tolerance requirements. Verify pinout compatibility and thermal resistance specifications when transitioning between these variants.