1N3030B-1

Overview

The Microchip Technology 1N3030B-1 is a 1-watt Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 27 V with a tolerance of ±5%. The device operates within an extended temperature range from -65°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 22.8 V, a maximum Zener impedance of 40 Ohms, and a forward voltage drop of 1.2 V at 200 mA.

Feature Summary

• Provides stable voltage regulation via metallurgically bonded construction suitable for demanding environments.
• Supports operation across a wide thermal range extending up to 175°C junction temperature.
• Features low reverse leakage current to minimize power loss in standby states.

Applications

• Voltage reference circuits requiring high stability.
• Overvoltage protection stages in industrial equipment.
• Power supply output regulation modules.

Procurement Notes

Verify the specific suffix designation against official Microchip documentation to confirm compliance with MIL-PRF-19500/115 standards. Ensure the procurement channel provides valid traceability records for the component's manufacturing lot. Confirm that the received parts match the specified DO-204AL package dimensions and lead configuration before integration into the assembly process.

Selection Notes

Select this component when a 27 V regulation point is required with high thermal endurance. The 1 W power dissipation rating allows for robust performance in space-constrained through-hole layouts. Consider the ±5% voltage tolerance for precision requirements and verify that the 40 Ohm impedance meets the dynamic load specifications of the target circuit design.

Part Context

This part belongs to the 1N30xx series of 1-watt Zener diodes manufactured by Microchip Technology. The series is characterized by metallurgical bonding techniques that enhance reliability under mechanical stress and thermal cycling. These components are widely utilized in aerospace and military-grade electronics where long-term stability and ruggedness are critical operational requirements.

Replacement Considerations

Cross-reference with JANTX or JAN variants within the same series if higher qualification levels are required. Verify pinout compatibility with the DO-204AL footprint before substituting with other manufacturers' equivalents.