JANTX1N5519CUR-1

Single Zener Diodes Overview

The JANTX1N5519CUR-1 is a Zener diode manufactured by Microchip Technology, designed for voltage regulation applications. It operates within the JAN1N5518 through JAN1N5546 series of low-voltage avalanche devices. The component features a 3.6 V nominal Zener voltage with a standard tolerance of ±5%. It is rated for 500 mW power dissipation and utilizes a DO-213AA (SMA) surface-mount package. Qualified to MIL-PRF-19500/437 standards, it supports an operating temperature range from -65°C to +175°C.

Single Zener Diodes Feature Summary

• Military-grade qualification under MIL-PRF-19500/437 standards
• Internal metallurgical bond construction option available
• Hermetically sealed glass axial or surface-mount packaging

Single Zener Diodes Applications

• Precision voltage reference circuits in aerospace systems
• Overvoltage protection in military-grade electronic assemblies
• Voltage regulation in high-reliability industrial control equipment

Single Zener Diodes Procurement Notes

Verify that the specific part number suffix matches the required package style and qualification level. Confirm whether the internal metallurgical bond feature is explicitly included in the order specification, as this affects mechanical reliability. Ensure compliance with the relevant military performance specification requirements for your application environment.

Single Zener Diodes Selection Notes

Select this component when a stable 3.6 V reference is required in harsh environments. The JANTX qualification ensures higher reliability than commercial grades. Consider the thermal management capabilities of the SMA package if high ambient temperatures are expected. Verify that the ±5% tolerance meets the circuit design constraints.

Single Zener Diodes Part Context

This device belongs to the JAN1N5518 through JAN1N5546 series of 0.5 W Zener diodes. These components provide voltage regulation across a range of 3.3 V to 33 V. The series is widely used in defense and aerospace electronics due to its robust construction and wide temperature operating range. The JANTX variant represents a specific tier of military qualification within this family.

Single Zener Diodes Replacement Considerations

Compatible substitutes include JAN1N5519B-1 and JAN1N5519B. Verify that alternative parts match the DO-213AA package dimensions and MIL-PRF-19500/437 electrical specifications before integration.