JAN1N4483

Single Zener Diodes Overview

The JAN1N4483 is a military-qualified Zener voltage regulator from the 1N4460–1N4496 series, manufactured by Microchip Technology. It features a hermetically sealed voidless glass package with an internal metallurgical bond and triple-layer passivation. The device provides a nominal Zener voltage of 56 V with a maximum dynamic impedance of 70 Ohms at a test current of 4.5 mA. It supports a steady-state power dissipation of 1.5 W and operates within a junction temperature range of -65°C to +175°C.

Single Zener Diodes Feature Summary

• Hermetically sealed voidless glass construction with tungsten slugs for robust performance in high-reliability environments.
• Military qualification per MIL-PRF-19500/406 ensuring suitability for applications where failure cannot be tolerated.
• Triple-layer passivation and Category I metallurgical bonds provide inherent radiation hardness and ESD protection.

Single Zener Diodes Applications

• High-reliability aerospace systems requiring radiation-hardened components.
• Critical military electronics where strict environmental sealing is necessary.
• Voltage regulation circuits operating across extreme temperature ranges.

Single Zener Diodes Procurement Notes

Verify that the specific part number matches the required military qualification level (JAN) and tolerance class. Confirm compliance with MIL-PRF-19500/406 standards. Ensure the procurement specifications align with the hermetic seal requirements and lead finish options available for this series.

Single Zener Diodes Selection Notes

Select the JAN1N4483 when a 56 V Zener voltage is required in a ruggedized axial-lead package. Consider the 1.5 W power rating and wide thermal operating range (-65°C to +175°C). Verify if tighter tolerances or surface mount alternatives are needed for the specific design constraints.

Single Zener Diodes Part Context

This component belongs to the industry-standard 1N4460–1N4496 series of 1.5 Watt Zener diodes. The JAN prefix indicates it meets the JAN Level reliability standards defined in MIL-PRF-19500/406. The series offers extensive voltage selections from 3.3 V to 200 V in both through-hole and surface mount configurations.

Single Zener Diodes Replacement Considerations

Equivalent parts include JANTX1N4483, JANTXV1N4483, and JANS1N4483, which share the same electrical characteristics but differ in reliability levels. Commercial versions such as 1N4483 are also electrically similar but lack military qualification.