1N5523C/TR

Overview

The Microchip Technology 1N5523C/TR is a single Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 5.1 V with a tight tolerance of ±2%. The device supports a maximum power dissipation of 500 mW and operates within an extended junction temperature range from -65°C to +175°C. Packaged in the DO-204AH (DO-35) axial through-hole format, it exhibits a maximum Zener impedance of 26 Ohms at the test current. Reverse leakage current is specified at 2 µA when measured at 2.5 V.

Feature Summary

• Provides precise voltage regulation with a narrow ±2% tolerance on the 5.1 V nominal rating.
• Capable of operating reliably across an extended industrial temperature range up to 175°C junction temperature.
• Utilizes a standard DO-204AH axial leaded package suitable for through-hole mounting processes.

Applications

• Precision voltage reference circuits requiring stable DC levels
• Overvoltage protection stages in sensitive electronic systems
• General-purpose voltage regulation in industrial control equipment

Procurement Notes

Verify the specific suffix designation against official Microchip documentation to confirm package type and tolerance class. Ensure the procurement channel sources genuine components directly from authorized distributors or the manufacturer to prevent counterfeit infiltration. Confirm RoHS compliance status and environmental declarations match project requirements before finalizing orders.

Selection Notes

Select this component when a highly accurate 5.1 V reference is required alongside robust thermal performance. The ±2% tolerance distinguishes it from standard variants, making it suitable for precision analog front ends. Consider the axial package constraints for PCB layout and ensure the 500 mW power rating accommodates the expected dissipation under worst-case operating conditions.

Part Context

This part belongs to the 1N55xx series of glass-passivated Zener diodes manufactured by Microchip Technology. The series offers various voltage options packaged in the traditional DO-35 axial form factor. The 'C' suffix typically denotes the specific voltage tolerance grade, while '/TR' indicates tape and reel packaging for automated assembly.

Replacement Considerations

Publicly confirmed substitute part numbers include 1N5523C and 1N5523D. Verify that any replacement maintains the identical 5.1 V nominal voltage, ±2% tolerance, and DO-204AH package dimensions to ensure mechanical and electrical compatibility.