1N5523C

Overview

The Microchip Technology 1N5523C is a single Zener diode with a nominal voltage of 5.1 V and a power dissipation rating of 500 mW. It features a tight voltage tolerance of ±2% and operates within a temperature range of -65°C to +175°C TJ. The device utilizes a DO-204AH (DO-35) axial through-hole package, exhibits a maximum reverse leakage current of 2 µA at 2.5 V, and has a Zener impedance of 26 Ohms.

Feature Summary

• Provides precise voltage regulation with a narrow ±2% tolerance for stable reference applications.
• Supports extended thermal operation up to +175°C junction temperature for harsh environments.
• Utilizes an axial leaded DO-204AH package suitable for standard through-hole mounting.

Applications

• Precision voltage reference circuits
• Overvoltage protection in sensitive electronics
• General-purpose voltage regulation

Procurement Notes

Verify the specific suffix designation when ordering, as variants such as 1N5523C/TR utilize reel packaging while others may be bulk. Confirm RoHS compliance status directly with the manufacturer, as historical data indicates some versions may not meet current environmental standards. Ensure the required tolerance matches the design specifications before procurement.

Selection Notes

Select this component for designs requiring high precision due to its ±2% voltage tolerance compared to standard 5% options. The wide operating temperature range makes it suitable for industrial applications where thermal stability is critical. Consider the axial package form factor for compatibility with existing through-hole PCB layouts.

Part Context

This part belongs to the Microchip 1N5523 series of Zener diodes, which are established components for voltage regulation. The 1N5523C specifically denotes the version with tighter manufacturing tolerances compared to other suffixes like B or D. It is widely used in discrete semiconductor applications requiring reliable performance over a broad temperature spectrum.

Replacement Considerations

Verified parameter-equivalent substitutes include the 1N5523B and 1N5523D from Microchip Technology. These parts share similar electrical characteristics but differ in voltage tolerance specifications. Verify package compatibility and tolerance requirements before substitution.