JANTX1N5521D-1/TR

Single Zener Diodes Overview

The JANTX1N5521D-1/TR is a hermetically sealed, axial-leaded glass Zener diode manufactured by Microchip Technology. It operates within the DO-35 (DO-204AH) package and provides a nominal Zener voltage of 4.3V with a tight tolerance of ±2%. The device supports a maximum power dissipation of 500mW and maintains functionality across an extended junction temperature range from -65°C to +175°C. Qualified under MIL-PRF-19500/437, it features low reverse leakage current and is supplied in tape-and-reel packaging for automated assembly.

Single Zener Diodes Feature Summary

• Hermetically sealed glass construction ensuring environmental stability
• High precision voltage regulation with ±2% tolerance
• Military-grade qualification compliant with MIL-PRF-19500/437 standards

Single Zener Diodes Applications

• Precision voltage reference circuits in aerospace systems
• Overvoltage protection in military communication equipment
• Voltage clamping in high-reliability industrial control units

Single Zener Diodes Procurement Notes

Verify that the ordering suffix matches the required packaging configuration. Confirm that the specific revision level aligns with the design's quality assurance requirements. Ensure the component meets all applicable environmental testing standards mandated for the target deployment environment before final integration.

Single Zener Diodes Selection Notes

Select this component when strict voltage accuracy and long-term reliability are critical. The ±2% tolerance makes it suitable for applications requiring precise reference levels without external calibration. Consider the thermal management capabilities provided by the glass encapsulation for high-temperature operational environments.

Single Zener Diodes Part Context

This part belongs to the 1N55xx series of low-voltage avalanche Zener diodes. These components are designed for high-reliability applications where consistent performance under extreme conditions is required. The series offers various voltage options while maintaining uniform physical dimensions and electrical characteristics across the family.

Single Zener Diodes Replacement Considerations

Verify compatibility with equivalent parts such as JANTX1N5521C-1 or JANTX1N5521B-1 based on required tolerance levels. Ensure substitute components meet the same MIL-PRF-19500/437 qualification standards and maintain identical package dimensions for direct replacement.