1N3022B-1

Overview

The Microchip Technology 1N3022B-1 is a 1-watt Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 12 V with a tolerance of ±5%. The device operates within an extended temperature range from -55°C to +175°C and utilizes the DO-204AL (DO-41) axial through-hole package. Key electrical characteristics include a maximum reverse leakage current of 10 µA at 16.7 V, a Zener impedance of 9 Ohms at a test current of 21 mA, and a forward voltage of 1.2 V at 200 mA.

Feature Summary

• Provides stable voltage regulation with a nominal 12 V breakdown voltage.
• Engineered for high-temperature reliability with operation up to +175°C.
• Utilizes metallurgical bonding for enhanced durability in harsh environments.

Applications

• Voltage reference circuits
• Overvoltage protection systems
• Power supply regulation

Procurement Notes

Verify component authenticity by checking manufacturer markings against official datasheets. Confirm package type matches DO-204AL specifications. Ensure environmental compliance requirements align with project needs, noting RoHS status may vary by production batch. Validate thermal performance parameters against specific application constraints before integration.

Selection Notes

Select this component when a robust 12 V regulation solution is required for high-temperature environments. The DO-204AL package suits through-hole mounting processes. Consider the 1 W power dissipation rating and thermal derating curves for circuit design. Verify that the 9 Ohm impedance meets signal integrity requirements for the intended load conditions.

Part Context

This part belongs to the 1N30xx series of 1-watt Zener diodes manufactured by Microchip Technology. These components are widely used in industrial and aerospace electronics where long-term stability and wide operating temperature ranges are critical. The series offers various voltage options within a standardized mechanical footprint.

Replacement Considerations

Compatible substitutes include other 12 V, 1 W Zener diodes in the DO-204AL package. Verify pinout compatibility and ensure equivalent electrical parameters such as Zener impedance and leakage current. Check for any differences in thermal resistance or packaging materials that might affect assembly or performance.