1N3829A-1

Single Zener Diodes Overview

The Microchip Technology 1N3829A-1 is a 1-watt metal case Zener diode with a nominal voltage of 6.8 V and a ±5% tolerance. It operates within a temperature range of -65°C to +175°C, featuring a maximum reverse leakage current of 10 µA at VR. The device exhibits a typical temperature coefficient of +0.053 %/°C and a maximum Zener impedance (ZZT) of 1.5 Ω at IZT = 37 mA. Maximum Zener current (IZM) is rated at 133 mA.

Single Zener Diodes Feature Summary

• Hermetically sealed DO-13 welded metal and glass package for high-reliability applications
• Internally solder-bonded construction ensuring robust mechanical integrity
• Inherently radiation hard design suitable for demanding environments
• Low reverse leakage currents and tight voltage tolerances

Single Zener Diodes Applications

• High-reliability military and aerospace systems
• Voltage regulation in harsh thermal environments
• Radiation-hardened electronic circuits

Single Zener Diodes Procurement Notes

Verify the specific suffix requirements against official documentation before ordering. Confirm whether the standard or RoHS-compliant (e3) version is required. Check for availability of JAN, JANTX, or JANTXV military qualifications if screening levels are necessary. Ensure lead mounting conditions match thermal resistance specifications.

Single Zener Diodes Selection Notes

Select this component for applications requiring a 6.8 V reference with high power dissipation capabilities up to 1 Watt. Consider the positive temperature coefficient when designing for wide thermal ranges. Verify that the DO-13 through-hole package fits the mechanical constraints. Evaluate thermal management needs based on the specified junction-to-lead thermal resistance values.

Single Zener Diodes Part Context

This part belongs to the 1N3821 thru 1N3830A series of 1-watt metal case Zener diodes manufactured by Microsemi (now Microchip Technology). The series provides low voltage selections from 3.3 V to 7.5 V in a hermetically sealed DO-13 package. It is designed for high-reliability applications and offers various military qualification levels.

Single Zener Diodes Replacement Considerations

Consult the manufacturer's datasheet for direct equivalents. Cross-reference with other manufacturers offering DO-13 packaged Zener diodes with similar 6.8 V ratings and 1 W power dissipation. Verify pinout compatibility and thermal characteristics before substitution.

Single Zener Diodes FAQ

What is the polarity configuration of the 1N3829A-1?

The cathode is connected to the case.

How does the 'A' suffix affect the voltage tolerance?

The 'A' suffix indicates a standard tolerance of ±5% on the nominal Zener voltage.