1N4738AP/TR8

Overview

The Microchip Technology 1N4738AP/TR8 is a single silicon Zener diode housed in the DO-41 axial leaded package. It features an 8.2V nominal Zener voltage with a 5% tolerance and a 1W power dissipation rating at 25°C ambient temperature. The device utilizes a glass passivated junction for reliability and operates within a temperature range of -65°C to +175°C. It is supplied in tape and reel packaging.

Feature Summary

• Glass passivated junction construction
• High temperature soldering capability
• Low Zener impedance characteristics

Applications

• Voltage regulation circuits
• Voltage reference applications
• Overvoltage protection

Procurement Notes

Verify the specific suffix AP/TR8 against official Microchip documentation to confirm the exact tolerance, packaging format, and compliance status. Ensure the component matches the required electrical specifications for the target design before procurement.

Selection Notes

Select this component when a standard 8.2V Zener voltage with 5% tolerance is required in a through-hole DO-41 package. Consider the 1W power rating and high-temperature operating range for suitable thermal management in the application environment.

Part Context

This part belongs to the 1N47xx series of Zener diodes manufactured by Microchip Technology. These components are widely used in general-purpose electronic circuits requiring stable voltage references or regulation. The DO-41 package provides robust mechanical support for axial mounting on printed circuit boards.

Replacement Considerations

Cross-reference with other manufacturers' 1N4738A equivalents. Verify that substitute parts meet the same 8.2V Zener voltage, 5% tolerance, and 1W power dissipation requirements.