1N3026B-1/TR

Overview

The Microchip Technology 1N3026B-1/TR is a 1-watt glass case Zener diode with an 18 V nominal voltage. It operates within a -55°C to +175°C junction temperature range and features a hermetically sealed DO-41 package. The device provides a 5% voltage tolerance, 14 mA test current, 52 mA maximum regulator current, and 10 µA maximum reverse leakage current.

Feature Summary

• Hermetically sealed glass construction for high-reliability environments
• Stable voltage regulation across broad operating currents and temperatures
• Low reverse leakage current characteristics
• Inherently radiation hard design

Applications

• Voltage regulation in military and aerospace systems
• High-reliability industrial power supplies
• Reference voltage generation in harsh environments

Procurement Notes

Verify the specific suffix against official documentation to confirm tape-and-reel packaging and RoHS compliance status. Confirm that the ordering code matches the exact JEDEC registration number and tolerance level required for your circuit design specifications.

Selection Notes

Select this component when a 1-watt dissipation rating and hermetic sealing are mandatory. Ensure the 18 V breakdown voltage aligns with the target reference potential. Verify thermal derating requirements based on the expected ambient operating conditions.

Part Context

This part belongs to the established 1N3016B-1 through 1N3045B-1 series of 1-watt Zener diodes. The series offers a wide selection from 6.8 to 110 volts in the same DO-41 package format. It is qualified per MIL-PRF-19500/115 standards for various reliability levels.

Replacement Considerations

Consult the manufacturer's datasheet for parameter-equivalent alternatives within the same series or other manufacturers' equivalents that meet the 1W, DO-41, and 18V specifications.