JANTX1N4478CUS/TR

Single Zener Diodes Overview

The JANTX1N4478CUS/TR is a single Zener diode manufactured by Microchip Technology, designed for surface-mount applications. It features a nominal Zener voltage of 36 V with a tolerance of ±2%. The device has a maximum power dissipation of 1.5 W and a maximum Zener impedance of 27 Ohms. Reverse leakage current is specified at 50 nA when tested at 31.2 V. The forward voltage is 1 V at a forward current of 200 mA. It operates within a temperature range of -65°C to 175°C and utilizes the SQ-MELF (D-5A) package.

Single Zener Diodes Feature Summary

• Provides precise voltage regulation with tight ±2% tolerance for stable reference applications
• Engineered for high-temperature reliability with an extended operating range up to 175°C
• Utilizes a compact surface-mount SQ-MELF package for automated assembly integration

Single Zener Diodes Applications

• Military and aerospace voltage reference circuits
• High-reliability power supply regulation systems
• Harsh environment electronic protection networks

Single Zener Diodes Procurement Notes

Verify that the specific suffix CUS/TR corresponds to the required SQ-MELF surface-mount configuration and tape-and-reel packaging format. Confirm compliance with MIL-PRF-19500 standards if military qualification is mandated for the end application. Ensure the procurement documentation explicitly states the 1.5 W power rating and 36 V nominal voltage to avoid substitution errors with similar axial or lower-power variants.

Single Zener Diodes Selection Notes

Select this component when a robust surface-mount Zener diode is required for high-temperature environments. The SQ-MELF package offers space efficiency compared to through-hole alternatives while maintaining high thermal stability. Consider the 1.5 W power rating and low leakage characteristics for precision regulation tasks where standard commercial-grade devices may fail under extreme conditions.

Single Zener Diodes Part Context

This part belongs to the JANTX series of radiation-hardened and high-reliability semiconductors produced by Microchip Technology. The series is designed to meet stringent military specifications, ensuring performance consistency in defense and aerospace sectors. The JANTX1N4478 variant specifically addresses the need for reliable voltage clamping in critical systems where failure is not an option.

Single Zener Diodes Replacement Considerations

JANTX1N4478CUS/TR

Single Zener Diodes FAQ

What is the maximum operating temperature for the JANTX1N4478CUS/TR?

The maximum operating temperature is 175°C.

Does the JANTX1N4478CUS/TR use a through-hole or surface-mount package?

It uses a surface-mount SQ-MELF (D-5A) package.