1N4782A-1

Overview

The Microchip Technology 1N4782A-1 is a temperature-compensated Zener diode designed for high-reliability voltage reference applications. It features an 8.5 V nominal Zener voltage with a tight tolerance of ±1%. The device operates in the DO-35 axial through-hole package and supports a maximum power dissipation of 500 mW. It maintains functionality across an extended temperature range from -65°C to +175°C, ensuring stable performance in demanding environments.

Feature Summary

• Temperature compensation ensures stable voltage regulation across wide thermal variations
• High reliability construction suitable for critical electronic systems
• Tight voltage tolerance provides precise reference accuracy

Applications

• Precision voltage reference circuits
• Temperature-compensated regulator designs
• High-reliability aerospace and military electronics

Procurement Notes

Verify the specific suffix '-1' against official Microchip documentation to confirm it denotes the ±1% tolerance variant rather than standard commercial grade. Confirm RoHS compliance status as historical data indicates non-compliance for some variants in this series. Ensure the DO-35 package matches your PCB footprint requirements before finalizing procurement.

Selection Notes

Select this component when strict voltage stability over temperature is required compared to standard Zener diodes. The ±1% tolerance offers higher precision than typical 5% or 10% devices. Consider the DO-35 package size constraints and the need for through-hole mounting technology during circuit board layout planning.

Part Context

This part belongs to the 1N47xx series of Zener diodes manufactured by Microchip Technology. It serves as a specialized high-precision version within the broader family of voltage reference components. The 'A' designation typically indicates improved specifications over the base model, while the '-1' suffix specifies the tighter tolerance class.

Replacement Considerations

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