1N4482US/TR

Single Zener Diodes Overview

The Microchip Technology 1N4482US/TR is a surface mount Zener voltage regulator with a nominal breakdown voltage of 51V. It features a maximum dynamic impedance of 60 Ohms at the test current and operates within a junction temperature range of -65°C to +175°C. The device dissipates up to 1.5W of steady-state power and includes triple-layer passivation for robust construction.

Single Zener Diodes Feature Summary

• Hermetically sealed voidless glass package with internal metallurgical bonds
• Military qualification per MIL-PRF-19500/406
• Triple-layer passivation for enhanced reliability

Single Zener Diodes Applications

• High-reliability applications where failure cannot be tolerated
• Voltage regulation over broad operating current and temperature ranges
• Radiation-hardened circuit designs

Single Zener Diodes Procurement Notes

Verify the specific military qualification level (JAN, JANTX, JANTXV, or JANS) required for your application, as suffixes determine the reliability tier. Confirm RoHS compliance status if environmental regulations apply, noting that commercial versions may differ from qualified levels. Ensure the tape and reel packaging meets EIA-481-B standards for automated assembly processes.

Single Zener Diodes Selection Notes

Select this component for its robust voidless glass construction and high thermal stability. Consider the 5% standard tolerance unless tighter specifications are needed. Evaluate the forward voltage characteristics for series configurations. Verify that the 1.5W power dissipation rating aligns with the thermal management capabilities of the target PCB layout.

Single Zener Diodes Part Context

This part belongs to the 1N4460US through 1N4496US series of industry-recognized 1.5-watt Zener diodes. These devices serve as surface mount equivalents to popular JEDEC registered axial-lead series, offering a compact D-5A MELF package alternative for space-constrained high-reliability electronic systems.

Single Zener Diodes Replacement Considerations

Direct replacements include other parts in the 1N44xxUS series with matching 51V ratings. Verify that substitute components maintain the same MIL-PRF-19500/406 qualification level and hermetic sealing requirements to ensure equivalent performance in critical environments.