JANS1N4472DUS/TR

Single Zener Diodes Overview

The JANS1N4472DUS/TR is a single Zener diode manufactured by Microchip Technology, designed for surface-mount applications in the SQ-MELF (D-5A) package. It features a nominal Zener voltage of 20 V with a tight tolerance of ±1% and a maximum power dissipation of 1.5 W. The device operates within a junction temperature range of -65°C to 175°C and meets MIL-PRF-19500/406 qualification standards for military-grade reliability.

Single Zener Diodes Feature Summary

• Military-grade qualification compliant with MIL-PRF-19500/406 specifications
• High thermal stability supporting operation up to 175°C junction temperature
• Precision voltage regulation with ±1% tolerance for critical circuit accuracy

Single Zener Diodes Applications

• Radiation-hardened aerospace systems
• Military-grade voltage reference circuits
• High-reliability power supply regulation

Single Zener Diodes Procurement Notes

Verify that the specific suffix 'JANS' denotes the required radiation-hardened level, as standard commercial or industrial variants lack this qualification. Confirm the D-5A package dimensions match the PCB footprint exactly. Ensure the ordering documentation explicitly references MIL-PRF-19500/406 compliance to guarantee the intended military-grade performance characteristics are delivered.

Single Zener Diodes Selection Notes

Select this component when radiation hardness and extreme temperature resilience are mandatory requirements. The 1.5 W power rating supports higher current loads compared to smaller packages. The ±1% tolerance is suitable for precision applications where standard 5% or 10% tolerances introduce unacceptable error margins in voltage regulation tasks.

Single Zener Diodes Part Context

This part belongs to the 1N4472 series of Zener diodes produced by Microchip Technology under its defense and space electronics division. The 'JANS' prefix indicates a specific subset of the family engineered for enhanced environmental robustness, distinguishing it from standard JAN or JANTX variants which may not meet the same rigorous qualification standards.

Single Zener Diodes Replacement Considerations

Direct substitutes include JANTXV1N4472DUS/TR and JAN1N4472DUS/TR. Note that these alternatives lack the specific radiation-hardened qualifications associated with the JANS designation and may not be suitable for high-radiation environments.