JANTXV1N4988CUS

Single Zener Diodes Overview

The JANTXV1N4988CUS is a hermetically sealed silicon Zener diode manufactured by Microchip Technology. It features a nominal Zener voltage of 180 V with a tight tolerance of 2%. The device is rated for a maximum power dissipation of 5 W and operates within an extended temperature range from -65°C to +175°C. Designed for high-reliability applications, it utilizes a glass E-package-2 (O-LELF-R2) construction. Key electrical characteristics include a maximum reverse leakage current of 2 µA at 69.2 V and a Zener impedance of 450 Ohms at the test current of 5 mA.

Single Zener Diodes Feature Summary

• Hermetically sealed glass package construction ensuring environmental stability
• Extended operating temperature range suitable for harsh conditions
• High precision voltage regulation with 2% tolerance
• Radiation-hardened design for aerospace and defense environments

Single Zener Diodes Applications

• Military avionics systems requiring radiation tolerance
• Spacecraft power management circuits
• High-reliability industrial control equipment
• Defense communication infrastructure

Single Zener Diodes Procurement Notes

Verify that the specific suffix CUS denotes the hermetically sealed glass package variant required for your application. Confirm radiation hardness levels and qualification standards against project specifications. Ensure thermal management strategies align with the 5 W power dissipation rating under worst-case ambient conditions. Validate compatibility with existing PCB footprints for the O-LELF-R2 package form factor.

Single Zener Diodes Selection Notes

Select this component when strict voltage accuracy and environmental sealing are critical. The 2% tolerance offers superior regulation compared to standard commercial grades. Consider the extended temperature range if operation exceeds typical industrial limits. Evaluate the hermetic seal requirement against cost constraints, as this feature adds complexity compared to non-sealed alternatives.

Single Zener Diodes Part Context

This part belongs to the JANTXV series of radiation-hardened Zener diodes produced by Microchip Technology. The series is engineered for mission-critical applications in aerospace and defense sectors where reliability under extreme conditions is paramount. The JANTXV designation indicates enhanced screening and quality assurance protocols beyond standard military grades.

Single Zener Diodes Replacement Considerations

JANTX1N4988CUS: Similar hermetic package but with 5% voltage tolerance instead of 2%. Verify if the relaxed tolerance meets circuit requirements. Standard 1N4988 variants lack hermetic sealing and radiation hardening, making them unsuitable for direct replacement in qualified aerospace designs.