1N3972

Single Diodes Overview

The Microchip Technology 1N3972 is a silicon power rectifier diode designed for general-purpose applications. It features a maximum repetitive peak reverse voltage of 200 V and an average rectified forward current rating of 1.0 A. The device exhibits a maximum non-repetitive peak forward surge current capability of 30 A at 8.3 ms single half-sine-wave impulse. Electrical characteristics include a maximum DC reverse leakage current of 50 µA at rated voltage and a maximum instantaneous forward voltage drop of 1.1 V at specified forward current.

Single Diodes Feature Summary

• Utilizes silicon planar technology for robust performance
• Designed for high reliability in general-purpose rectification
• Capable of handling significant surge currents during transient events

Single Diodes Applications

• General-purpose rectification in power supplies
• Polarity protection circuits
• Freewheeling diodes in inductive load switching

Single Diodes Procurement Notes

Verify the specific package type and marking code against the official Microchip datasheet to ensure compatibility with your assembly process. Confirm that the component meets all required environmental compliance standards for your target market. Cross-reference the manufacturer part number with authorized distributor listings to validate authenticity and traceability before finalizing procurement orders.

Single Diodes Selection Notes

Select this component when a standard silicon rectifier with 200 V reverse voltage blocking capability is required. Ensure the circuit design accounts for the specified thermal resistance and junction temperature limits under expected operating conditions. Verify that the forward current requirements do not exceed the 1.0 A average rating for continuous operation.

Single Diodes Part Context

The 1N3972 belongs to the standard 1N series of silicon power rectifiers, widely used in industrial and consumer electronics. Manufactured by Microchip Technology, it serves as a reliable alternative to similar legacy components from other semiconductor providers. The part is commonly available in axial leaded packages suitable for through-hole mounting on printed circuit boards.

Single Diodes Replacement Considerations

Direct replacements must match the 200 V reverse voltage and 1.0 A average current ratings. Verify pinout compatibility and physical dimensions if space constraints exist. Consult official substitution guides for equivalent parts from Microchip or other manufacturers ensuring identical electrical specifications.