1N3034B-1

Overview

The 1N3034B-1 is a Zener diode manufactured by Microchip Technology, designed for voltage regulation applications. It features a nominal Zener voltage of 39 V with a tolerance of ±5%. The device supports a maximum DC power dissipation of 1 W and exhibits a Zener impedance of 60 Ohms at a test current of 6.5 mA. It operates within an extended temperature range from -55°C to +175°C. The component utilizes a DO-204AL (DO-41) axial through-hole package and maintains a maximum reverse leakage current of 10 µA.

Feature Summary

• Provides stable voltage regulation with a nominal 39 V output and tight ±5% tolerance.
• Capable of handling 1 W power dissipation for robust performance in demanding circuits.
• Engineered for high-temperature reliability with an operational range extending up to +175°C.

Applications

• Voltage reference circuits requiring precise potential levels
• Overvoltage protection stages in electronic systems
• General-purpose voltage regulation in industrial equipment

Procurement Notes

Verify the specific suffix designation against official Microchip documentation to confirm compliance requirements. Ensure that the procurement channel sources components directly from authorized distributors or the manufacturer to guarantee authenticity. Confirm that the delivered parts match the specified DO-41 package and electrical parameters before integration into production workflows.

Selection Notes

Select this component when a 39 V regulation point is required with high thermal stability. The 1 W power rating suits applications needing moderate current handling without excessive heat sinking. Verify that the circuit design accommodates the 60 Ohm impedance characteristic and that the operating environment remains within the specified -55°C to +175°C range for optimal performance.

Part Context

This part belongs to the 1N3034 series of metallurgically bonded Zener diodes produced by Microchip Technology. These devices are typically available in various qualification grades, including JAN, JANTX, and JANTXV, per MIL-PRF-19500/115 specifications. The standard commercial version provides reliable performance for general electronic applications requiring durable axial-mounted regulation.

Replacement Considerations

Direct substitutes include other 1N3034 variants such as 1N3034B or qualified equivalents meeting the same 39 V, 1 W, and DO-41 specifications. Verify pinout compatibility and thermal derating curves before substitution. Cross-reference with MIL-PRF-19500/115 listings for aerospace-grade alternatives if higher reliability standards are required.