1N4468US/TR

Single Zener Diodes Overview

The Microchip Technology 1N4468US/TR is a surface mount Zener voltage regulator with a nominal breakdown voltage of 13.0 V and a maximum power dissipation of 1.5 W. It features a standard voltage tolerance of ±5% and a dynamic impedance of 8 Ohms at the test current of 17 mA. The device operates within a junction temperature range of -65°C to +175°C and utilizes an A (D-5A) MELF package.

Single Zener Diodes Feature Summary

• Hermetically sealed voidless glass construction using internal metallurgical bonds for robust performance.
• Military qualification available per MIL-PRF-19500/406 standards for high-reliability applications.
• Inherently radiation hard and non-sensitive to electrostatic discharge.

Single Zener Diodes Applications

• Voltage regulation in broad operating current and temperature ranges.
• High-reliability electronic systems where component failure is not tolerated.
• Radiation-hardened circuit designs.

Single Zener Diodes Procurement Notes

Verify that the specific ordering suffix matches the required reliability level, as commercial versions differ from military qualifications. Confirm RoHS compliance status if environmental regulations apply, noting that compliant options are restricted to commercial grades. Ensure the tape and reel packaging aligns with automated assembly requirements.

Single Zener Diodes Selection Notes

Select this component when a 13 V reference is needed in a surface mount form factor. Consider the 1.5 W power rating and thermal resistance characteristics for heat dissipation needs. Evaluate the ±5% tolerance against circuit precision requirements, noting tighter tolerances are available via specific suffixes.

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 similar electrical characteristics in a compact D-5A MELF package suitable for modern PCB layouts.

Single Zener Diodes Replacement Considerations

Equivalent parts include JAN1N4468CUS and other variants within the 1N4468 family. Verify package compatibility and ensure replacement components meet the same MIL-PRF-19500/406 qualification levels if military-grade reliability is required.

Single Zener Diodes FAQ

Is the 1N4468US/TR inherently radiation hard?

Yes, the datasheet states the device is inherently radiation hard as described in Microsemi MicroNote 050.

What is the maximum continuous forward current rating?

The maximum continuous forward current (IZM equivalent for forward bias) is rated at 200 mA based on the forward voltage specifications provided in the Maximum Ratings table.