1N3829A-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N3829A-1/TR is a hermetically sealed, metal-cased Zener diode with a nominal voltage of 6.8 V and a tolerance of ±5%. It operates at a test current of 37 mA with a maximum impedance of 1.5 Ohms and a reverse leakage current of 10 µA. The device dissipates up to 1 Watt and withstands a maximum Zener current of 500 mA. It features an operating temperature range from -65°C to +175°C and utilizes the DO-13 (DO-202AA) package.

Single Zener Diodes Feature Summary

• Hermetically sealed welded metal and glass construction for high reliability
• Internally solder-bonded design resistant to ESD and radiation
• Stable voltage regulation across broad operating currents and temperatures

Single Zener Diodes Applications

• High-reliability military and aerospace circuits
• Precision voltage reference applications
• Temperature-compensated oscillator circuits

Single Zener Diodes Procurement Notes

Verify that the 'TR' suffix confirms tape-and-reel packaging per EIA-296 standards. Confirm the 'A' suffix indicates the standard ±5% voltage tolerance. Ensure the component meets specific environmental or screening requirements such as JAN, JANTX, or JANTXV qualifications if applicable to the target system.

Single Zener Diodes Selection Notes

Select this component when a low-voltage Zener in a hermetic metal package is required. The 1N3829A-1 provides a 6.8 V breakdown suitable for precision references. Consider the thermal resistance of 50 °C/W junction-to-lead for heat dissipation planning. Verify compatibility with lead-free plating options if RoHS compliance is mandatory.

Single Zener Diodes Part Context

This part belongs to the 1N3821 through 1N3830A series of 1-Watt metal case Zener diodes. The series covers voltages from 3.3 V to 7.5 V in the DO-13 package. It is designed for applications requiring robust performance in harsh environments, offering inherent radiation hardness and tight voltage tolerances compared to standard glass-encapsulated equivalents.

Single Zener Diodes Replacement Considerations

Equivalent parts include JAN1N3829A-1, JANTX1N3829A-1, and JANTXV1N3829A-1 for varying levels of military screening. Surface mount alternatives are available in the 1N3821UR-1 series.