1N3028B-1/TR

Overview

The Microchip Technology 1N3028B-1/TR is a 1-watt glass case Zener diode with a nominal voltage of 22 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 16.7 V and a dynamic impedance of 23 ohms at a test current of 11.5 mA. The device utilizes a DO-41 axial package and is qualified per MIL-PRF-19500/115 for JAN, JANTX, and JANTXV military reliability levels.

Feature Summary

• Hermetically sealed glass DO-41 package with metallurgically bonded construction
• Qualified for high-reliability applications under MIL-PRF-19500/115 standards
• Inherently radiation hard design suitable for demanding environments

Applications

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

Procurement Notes

Verify the specific suffix configuration against the datasheet nomenclature to ensure correct military qualification level (JAN, JANTX, or JANTXV) and RoHS compliance status. Confirm that the ordering information matches the required JEDEC registration number and package type before finalizing procurement orders.

Selection Notes

Select this component when a 22-volt reference with tight 5% tolerance is required in a through-hole axial package. Ensure the application environment supports the specified -55°C to +175°C operating range and requires the inherent radiation hardness provided by the glass hermetic seal.

Part Context

This part belongs to the established 1N3016B-1 through 1N3045B-1 series of 1-watt Zener diodes. The series provides a wide selection of voltages from 6.8 to 110 volts in the same DO-41 package, offering consistent mechanical and electrical characteristics across the product line for standardized design integration.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.