1N3035B-1

Overview

The Microchip Technology 1N3035B-1 is a single Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 43 V with a tolerance of ±5%. The device supports a maximum power dissipation of 1 W and operates within an extended temperature range from -55°C to +175°C. Key electrical characteristics include a maximum Zener impedance of 70 Ohms and a reverse leakage current of 10 µA at 32.7 V. The component utilizes a DO-204AL (DO-41) axial through-hole package.

Feature Summary

• Provides stable voltage regulation with a nominal 43 V output.
• Capable of handling high thermal loads up to 175°C operating temperature.
• Features low reverse leakage current for efficient standby performance.

Applications

• Voltage reference circuits in precision instrumentation
• Over-voltage protection stages in power supplies
• Clamping applications in signal processing paths

Procurement Notes

Verify the specific suffix designation when ordering, as it may indicate qualification standards such as MIL-PRF-19500/115. Confirm RoHS compliance status, as military-grade variants often differ from commercial equivalents. Ensure the procurement channel provides traceability documentation required for aerospace or defense specifications.

Selection Notes

Select this component when a robust 43 V regulation point is required in harsh environments. The DO-204AL package offers mechanical stability for through-hole mounting. Consider the 1 W power rating and derating curves for thermal management design. Verify that the 70 Ohm impedance meets the dynamic regulation requirements of the target circuit.

Part Context

This part belongs to the 1N3035 series of 1-watt Zener diodes manufactured by Microchip Technology. The series includes various voltage ratings ranging from 1N3016B to 1N3045B. These components are typically available in JAN, JANTX, and JANTXV grades, adhering to strict military reliability standards defined in MIL-PRF-19500/115.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.