1N4747AGE3/TR

Overview

The Microchip Technology 1N4747AGE3/TR is a single silicon Zener diode housed in an axial DO-41 package. It provides a nominal Zener voltage of 20 V with a tolerance of 5%. The device dissipates up to 1 W of power and operates within a temperature range of -65°C to +175°C. Key electrical characteristics include a maximum reverse leakage current of 100 nA, a Zener impedance of 22 Ohms, and a test current of 12.5 mA. It features a forward voltage of 1.2 V at 200 mA forward current.

Feature Summary

• Provides stable voltage regulation via the Zener breakdown effect for circuit protection and reference applications.
• Constructed from silicon material ensuring reliable performance across a wide industrial temperature range.
• Utilizes an axial leaded DO-41 package designed for through-hole mounting on printed circuit boards.

Applications

• Voltage regulation in power supply circuits
• Overvoltage protection for sensitive electronic components
• Reference voltage generation in measurement systems

Procurement Notes

Verify the specific suffix 'E3' confirms RoHS compliance status as indicated by manufacturer documentation. Confirm the 'TR' designation corresponds to reel packaging specifications required for automated assembly processes. Cross-reference the full part number against official Microchip databases to ensure alignment with current manufacturing standards and environmental declarations before finalizing procurement orders.

Selection Notes

Select this component when a precise 20 V regulation point is required with standard 5% tolerance. Ensure the application demands a 1 W power dissipation capability suitable for axial leads. Verify that the operating environment falls within the specified -65°C to +175°C range. Consider the 22 Ohm impedance value for dynamic load requirements in the target circuit design.

Part Context

This part belongs to the 1N4747 series of Zener diodes manufactured by Microchip Technology. It shares the fundamental 20 V specification with variants like 1N4747AG but includes specific suffixes indicating regulatory compliance and packaging format. The series is categorized under discrete semiconductor diodes and rectifiers, serving as a standard component for voltage control tasks.

Replacement Considerations

Direct substitutes include other 1N4747 series variants such as 1N4747AG or 1N4747Ae3 if package and compliance requirements match. Verify pinout compatibility and thermal characteristics when considering alternative manufacturers offering equivalent 20 V, 1 W axial Zener diodes.