1N5530B

Overview

The Microchip Technology 1N5530B is a low voltage avalanche Zener diode rated at 0.5 W, housed in an axial-lead glass DO-35 (DO-204AH) package. It provides a nominal Zener voltage of 10 V with a standard tolerance of ±5%. The device operates within a junction and storage temperature range of -65°C to +175°C. Electrical characteristics include a maximum dynamic impedance of 60 Ohms at a test current of 1 mA, a maximum reverse leakage current of 8 µA at 8 V, and a forward voltage of 1.1 V maximum at 200 mA.

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range.
• Features hermetically sealed axial-lead glass construction for environmental protection.
• Offers minimal capacitance suitable for high-frequency applications.
• Inherently radiation hard without requiring special processing.

Applications

• Voltage reference circuits
• Overvoltage protection systems
• Precision voltage regulators

Procurement Notes

Verify the specific suffix requirements against the datasheet nomenclature. Confirm that the B suffix corresponds to the required ±5% voltage tolerance. Ensure the package type matches the DO-35 form factor. Check for RoHS compliance status if applicable to the project specifications.

Selection Notes

Select this component when a 10 V reference with ±5% accuracy is required. Consider the 0.5 W power dissipation limit and thermal resistance values for heat management. Evaluate the 60 Ohm dynamic impedance for noise sensitivity. Verify lead solderability standards if MIL-STD-750 compliance is necessary.

Part Context

This part belongs to the 1N5518 through 1N5546 series of low voltage avalanche Zener diodes manufactured by Microchip Technology. The series covers voltages from 3.3 V to 33 V. The 1N5530B specifically targets the 10 V segment with tight tolerance specifications compared to the standard commercial variants.

Replacement Considerations

Consult the manufacturer's official substitution guide for verified equivalents. Cross-reference electrical parameters such as Zener voltage, impedance, and package dimensions before implementation.