JAN1N5545B-1/TR

Single Zener Diodes Overview

The JAN1N5545B-1/TR is a low voltage avalanche Zener diode from the 1N5518 through 1N5546 series, manufactured by Microchip Technology. It features a nominal Zener voltage of 30 V with a tolerance of plus/minus 5%, indicated by the B suffix. The device operates within a steady-state power dissipation of 0.5 W and supports junction temperatures ranging from -65 to +175 °C. Qualified per MIL-PRF-19500/437 at the JAN level, it utilizes an internal metallurgical bond option denoted by the -1 suffix. The component is housed in a hermetically sealed axial-lead glass DO-35 (DO-204AH) package and is supplied in tape and reel format.

Single Zener Diodes Feature Summary

• Hermetically sealed axial-lead glass construction with internal metallurgical bonding for enhanced reliability
• Qualified to MIL-PRF-19500/437 standards for JAN military grade applications
• Inherently radiation hard design compliant with specified military testing methods
• ESD nonsensitive performance verified against MIL-STD-750 Method 1020

Single Zener Diodes Applications

• Voltage regulation across broad operating current and temperature ranges
• Military and aerospace electronic systems requiring high reliability components
• Radiation-hardened circuit designs for space or defense environments
• Precision reference voltage generation in harsh operational conditions

Single Zener Diodes Procurement Notes

Verify that the specific ordering suffix matches the required qualification level and packaging configuration. Confirm the presence of the metallurgical bond option if mandated by system specifications. Ensure the tape and reel quantity aligns with production requirements. Cross-reference the part number against the latest manufacturer documentation to validate compliance with current manufacturing standards and material declarations.

Single Zener Diodes Selection Notes

Select this component when a 30 V Zener voltage with tight plus/minus 5% tolerance is required for critical applications. The JAN qualification ensures suitability for demanding environmental conditions. Consider the internal metallurgical bond feature for improved structural integrity under thermal cycling. Verify that the DO-35 package dimensions fit the available board space and mounting constraints.

Single Zener Diodes Part Context

This device belongs to the 1N5518 through 1N5546 series of low voltage avalanche Zener diodes. The series offers a wide selection of voltages from 3.3 to 33 V with various tolerance options. The JAN1N5545B-1 variant specifically targets the 30 V segment with military-grade reliability. The series is designed to provide stable voltage regulation in compact axial-lead packages suitable for through-hole mounting.

Single Zener Diodes Replacement Considerations

Direct replacements must match the 30 V nominal voltage, 0.5 W power rating, and JAN qualification level. Verify compatibility of the DO-35 package dimensions and metallurgical bond construction. Ensure equivalent electrical characteristics such as impedance and leakage current are maintained for circuit functionality.