JANTXV1N4989CUS/TR

Single Zener Diodes Overview

The JANTXV1N4989CUS/TR is a Zener diode manufactured by Microchip Technology, designed for surface-mount applications. It features a B-SQ-MELF-2 package and operates within a temperature range of -65°C to +175°C. The device provides a nominal Zener voltage of 30 V with a 2% tolerance at a test current of 5 mA. Key electrical characteristics include a maximum reverse leakage current of 5 µA, a Zener impedance of 10 Ohms, and a power dissipation rating of 500 mW. The component supports a forward current of 1 A and exhibits a positive voltage temperature coefficient of 0.06 %/°C.

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 MELF package suitable for automated assembly processes

Single Zener Diodes Applications

• Precision voltage reference circuits in harsh environments
• Over-voltage protection stages requiring fast response
• Temperature-compensated regulator designs

Single Zener Diodes Procurement Notes

Verify the specific suffix configuration against official Microchip documentation to ensure compatibility with required radiation hardness or quality levels. Confirm that the B-SQ-MELF-2 package dimensions align with PCB footprint constraints. Validate thermal management strategies to maintain junction temperatures within the specified operational limits during peak load conditions.

Single Zener Diodes Selection Notes

Select this component when a stable 30 V reference is required in space-constrained surface-mount layouts. Ensure the design accounts for the 500 mW power dissipation limit under worst-case thermal conditions. Consider the low leakage current specification for high-impedance circuit nodes where minimal current draw is critical for overall system efficiency.

Single Zener Diodes Part Context

This part belongs to the JANTXV series of Zener diodes, which are characterized by enhanced reliability standards compared to commercial grades. The CUS suffix indicates a specific tape-and-reel packaging format optimized for high-volume surface-mount manufacturing. These components are typically utilized in aerospace, defense, and industrial sectors demanding long-term stability.

Single Zener Diodes Replacement Considerations

Consult official Microchip cross-reference guides for verified equivalents. Generic replacements may not match the specific radiation hardness or quality certification requirements inherent to the JANTXV designation.