1N3022B-1/TR

Overview

The Microchip Technology 1N3022B-1/TR is a 1-watt glass case Zener diode with a nominal voltage of 12 volts and a 5% tolerance. It operates within a temperature range of -55°C to +175°C, featuring a maximum reverse leakage current of 10 µA at the specified voltage. The device exhibits a test current of 21 mA, a maximum Zener impedance of 9 ohms, and a thermal resistance from junction to lead of 80 °C/W.

Feature Summary

• Hermetically sealed DO-41 glass package with metallurgically bonded construction
• Qualified per MIL-PRF-19500/115 for JAN, JANTX, and JANTXV military levels
• Inherently radiation hard design suitable for high-reliability applications

Applications

• Voltage regulation over broad operating current and temperature ranges
• High-reliability electronic systems requiring hermetic sealing
• Radiation-hardened circuit designs

Procurement Notes

Verify that the specific ordering suffix matches the required reliability level (JAN, JANTX, or JANTXV) and RoHS compliance status. Confirm the package type corresponds to the through-hole DO-41 configuration. Ensure the supplier provides documentation confirming qualification per MIL-PRF-19500/115 if military-grade performance is required for the application.

Selection Notes

Select this component when a 12-volt reference with tight 5% tolerance is needed in a ruggedized environment. The 1-watt power dissipation rating supports moderate current loads. Consider the -55°C to +175°C operating range for extreme thermal conditions. Verify that the 9-ohm dynamic impedance meets the noise and stability requirements of the target circuit design.

Part Context

This part belongs to the 1N3016B-1 through 1N3045B-1 series of 1-watt Zener diodes. The series covers a voltage range from 6.8 to 110 volts in the same glass DO-41 package. Commercial versions are available alongside military qualifications, providing a standardized form factor for various voltage regulation needs across different industries.

Replacement Considerations

Direct substitutes include other 1N3022B-1 variants with different suffixes indicating varying reliability levels or packaging options. Surface mount equivalents exist in the DO-213AB package, such as the 1N3022BUR-1, though mechanical mounting differs.