1N4049

Single Diodes Overview

The Microchip Technology 1N4049 is a standard recovery rectifier diode designed for general-purpose applications. It features a maximum repetitive peak reverse voltage of 400 V and an average forward rectified current rating of 1.0 A. The device utilizes a DO-201AD axial leaded package, suitable for through-hole mounting on printed circuit boards. Key electrical characteristics include a maximum RMS rectifying voltage of 280 V and a non-repetitive peak forward surge current capability of 30 A at 60 Hz for one-half cycle. The component operates within a junction temperature range of -65°C to +175°C, ensuring reliability in demanding thermal environments.

Single Diodes Feature Summary

• Provides stable voltage regulation with a 400 V peak reverse voltage rating
• Supports continuous 1.0 A average forward current for power handling
• Engineered for high thermal stability across extended operating temperatures

Single Diodes Applications

• General-purpose rectification in AC to DC power supply circuits
• Protection against reverse polarity in electronic equipment
• Freewheeling diodes in inductive load switching applications

Single Diodes Procurement Notes

Verify the specific manufacturer datasheet for the 1N4049 to confirm exact electrical tolerances and mechanical dimensions. Ensure that the procurement specifications align with the required voltage and current ratings for the target application. Cross-reference the package type and pin configuration to guarantee compatibility with existing board layouts and assembly processes.

Single Diodes Selection Notes

Select the 1N4049 when a robust standard recovery diode is needed for moderate voltage levels up to 400 V. Consider this component for designs requiring reliable performance under high surge currents and wide temperature variations. Evaluate the thermal management requirements to ensure the junction temperature remains within safe operational limits during continuous conduction.

Single Diodes Part Context

The 1N4049 belongs to the widely recognized 1N400x series of silicon rectifier diodes manufactured by Microchip Technology. This series is established for its consistency and reliability in industrial and consumer electronics. The 1N4049 specifically addresses applications requiring higher reverse voltage blocking capabilities compared to lower-rated variants in the same family, maintaining the same current handling capacity.

Single Diodes Replacement Considerations

Compatible substitutes include other 1N4049 variants from different manufacturers or equivalent parts within the 1N400x series that meet the 400 V and 1.0 A specifications.