1N5533UR-1

Overview

The Microchip Technology 1N5533UR-1 is a single Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 13 V with a test current of 1 mA and a maximum power dissipation of 500 mW. The device exhibits a Zener impedance of 90 Ohms and a voltage tolerance of 5%. It operates within an extended temperature range from -65 °C to +175 °C junction temperature. The component utilizes a DO-213AA-2 surface-mount package, characterized by specific physical dimensions including a diameter of 1.7 mm and a length of 3.71 mm.

Feature Summary

• Provides stable voltage regulation through precise Zener breakdown characteristics at low test currents.
• Capable of operation in extreme thermal environments due to an extended junction temperature rating.
• Engineered for surface-mount integration using a compact axial-like SMD form factor.

Applications

• Precision voltage reference circuits requiring stable DC levels.
• Over-voltage protection stages in sensitive electronic systems.
• Clamping applications in signal processing paths.

Procurement Notes

Verify the exact suffix configuration against official Microchip documentation to ensure correct electrical tolerances and packaging specifications. Confirm RoHS compliance status directly with the manufacturer as regulatory markings may vary by production batch. Cross-reference the datasheet revision date to validate parameter accuracy before finalizing procurement orders.

Selection Notes

Select this component when a 13 V regulation point is required in a surface-mount design. Ensure the circuit can accommodate the specified 90 Ohm impedance and 500 mW power limit. Verify that the operating environment remains within the -65 °C to +175 °C range to maintain performance reliability.

Part Context

This part belongs to the Microchip 1N5533 series of Zener diodes, which are established components for general-purpose voltage regulation. The UR-1 suffix typically denotes specific manufacturing or packaging variations within the broader product line. These devices are commonly utilized in industrial and commercial electronics where reliable voltage clamping is essential.

Replacement Considerations

Consult official Microchip substitution guides for verified equivalents. Generic replacements must match the 13 V Zener voltage, 500 mW power rating, and DO-213AA-2 package footprint to ensure functional compatibility without redesigning the PCB layout.