JAN1N5541DUR-1

Single Zener Diodes Overview

The JAN1N5541DUR-1 is a low voltage avalanche Zener diode with a nominal breakdown voltage of 22 V and a power rating of 0.5 W. It utilizes a hermetically sealed DO-213AA (MELF) glass surface mount package. The device features a metallurgical bond construction and is qualified to MIL-PRF-19500/437 standards for JAN, JANTX, and JANTXV reliability levels. Electrical characteristics include a maximum dynamic impedance of 0.01 Ohms at the test current of 1.0 mA.

Single Zener Diodes Feature Summary

• Hermetically sealed glass MELF package with internal metallurgical bond
• Qualified per MIL-PRF-19500/437 for military reliability levels
• Inherently radiation hard design
• Minimal capacitance and ESD insensitivity

Single Zener Diodes Applications

• Voltage regulation in harsh environments
• Radiation-hardened circuit protection
• Precision reference applications requiring low noise

Single Zener Diodes Procurement Notes

Verify that the specific ordering suffix matches the required tolerance level and qualification grade. Confirm RoHS compliance status as it varies by commercial versus military designation. Ensure the supplier provides traceability documentation consistent with MIL-PRF-19500/437 requirements for the selected reliability tier.

Single Zener Diodes Selection Notes

Select this component when a surface mount Zener regulator requires high reliability and radiation hardness. The 22 V nominal voltage suits mid-range regulation needs. Consider the 0.5 W power dissipation limit and thermal resistance values for proper heat management on the FR4 printed circuit board.

Single Zener Diodes Part Context

This part belongs to the 1N5518BUR-1 through 1N5546BUR-1 series of 0.5 watt glass surface mount Zener voltage regulators. The series offers a wide selection of voltages from 3.3 to 33 volts with various tolerance options available through different letter suffixes.

Single Zener Diodes Replacement Considerations

JAN1N5541C-1

Single Zener Diodes FAQ

What does the 'B' suffix indicate in the part number?

The 'B' suffix indicates a Zener voltage tolerance of plus or minus 5.0%.

How is polarity indicated on the device?

Polarity is indicated by a cathode band; the banded end must be positive with respect to the opposite end for Zener regulation.