1N4722

Overview

The Microchip Technology 1N4722 is a silicon rectifier diode designed for through-hole axial mounting. It features a maximum repetitive peak reverse voltage of 400 V and an average forward rectified current rating of 3 A. The device supports a maximum surge current of 300 A and exhibits a reverse leakage current of 25 uA. It operates within a temperature range from -65 °C to +175 °C, providing robust performance for general-purpose rectification applications requiring high thermal stability.

Feature Summary

• High-temperature operation capability up to 175 °C
• Robust surge current handling rated at 300 A
• Low reverse leakage current specification

Applications

• General-purpose power supply rectification
• Industrial equipment power circuits
• Automotive electronics systems

Procurement Notes

Verify the manufacturer source carefully, as multiple entities including Microsemi Corporation and New Jersey Semi-Conductor Products have historically produced this part number under license or acquisition. Confirm that the specific batch corresponds to Microchip Technology specifications when required. Ensure the package type matches the through-hole axial requirement for your PCB layout. Cross-reference datasheets to confirm electrical parameters align with your design constraints before finalizing procurement.

Selection Notes

Select this component when a standard silicon rectifier with 400 V blocking capability and 3 A continuous current is needed. Consider the wide operating temperature range if the environment exceeds standard industrial limits. Evaluate the axial package size against available board space. Compare surge current ratings against potential inrush conditions in the target circuit to ensure adequate safety margins during startup phases.

Part Context

This component belongs to the standard 1N47xx series of silicon rectifiers, widely used in legacy and modern designs alike. Originally associated with Motorola Semiconductor and later Microsemi Corporation, production rights are now held by Microchip Technology. The part represents a fundamental discrete semiconductor device essential for converting alternating current to direct current in various electronic assemblies.

Replacement Considerations

Direct substitutes include parts from other manufacturers holding the same JEDEC designation, such as those from Vishay or ON Semiconductor, provided they meet the identical 400 V and 3 A ratings. Verify pinout compatibility and package dimensions before substitution.