JANTXV1N972CUR-1

Single Zener Diodes Overview

The JANTXV1N972CUR-1 is a silicon unidirectional voltage regulator diode manufactured by Microchip. It features a nominal Zener voltage of 30 V with a maximum power dissipation of 0.5 W. The device operates within a temperature range of -55°C to 175°C and exhibits a dynamic impedance of 49 Ohms at a test current of 4.2 mA. It is housed in a DO-213AA-2 (SOD-80) surface-mount package, measuring 3.7 mm in length and 1.7 mm in diameter, with an isolated glass encapsulation.

Single Zener Diodes Feature Summary

• High-reliability construction featuring metallurgically bonded internal connections for enhanced stability.
• Qualified per MIL-PRF-19500/117 standards for military-grade performance requirements.
• Utilizes a round-end glass MELF package design suitable for automated surface-mount assembly.

Single Zener Diodes Applications

• Voltage regulation in military aerospace electronic systems
• Overvoltage protection circuits in harsh environments
• Reference voltage sources in high-temperature instrumentation

Single Zener Diodes Procurement Notes

Verify the specific suffix CUR-1 to confirm the SMD reel packaging configuration. Ensure compliance with MIL-PRF-19500/117 qualification levels is required for the intended application. Confirm RoHS status as non-compliant for this specific military variant before integration into restricted material lists.

Single Zener Diodes Selection Notes

Select this component when a 30 V reference is needed in a compact surface-mount form factor. The DO-213AA package offers a smaller footprint compared to axial leads while maintaining high thermal endurance. Consider the 49 Ohm dynamic impedance for noise-sensitive applications requiring stable regulation under varying load currents.

Single Zener Diodes Part Context

This part belongs to the 1N972 series of 0.5 W Zener diodes produced by Microchip. The JANTXV designation indicates a specific military qualification level offering tighter tolerances and higher reliability than standard commercial variants. The series spans various voltage ratings from 6.8 V to 200 V within the same physical envelope.

Single Zener Diodes Replacement Considerations

Direct substitutes include other JANTXV1N972 variants from qualified manufacturers meeting MIL-PRF-19500/117 specifications. Verify pinout compatibility and package dimensions when considering cross-brand replacements to ensure proper PCB mounting.