1A3

Overview

The 1A3 is a general-purpose rectifier diode manufactured by SMC Diode Solutions. It features a maximum DC reverse voltage of 200 V and an average forward current rating of 1 A. The device utilizes an R-1 axial through-hole package, suitable for standard PCB mounting. Key electrical characteristics include a maximum reverse leakage current of 5 µA at the rated voltage and a typical junction capacitance of 15 pF measured at 4 V and 1 MHz. The component operates within a junction temperature range of -65°C to 150°C.

Feature Summary

• Standard general-purpose rectification capability
• Axial leaded construction for through-hole integration

Applications

• General purpose rectification in electronic circuits
• Power supply input stages
• DC circuit protection

Procurement Notes

Verify the specific ordering suffix when purchasing, as packaging options such as tape and reel or bulk may vary. Confirm that the required axial lead form factor matches the R-1 package specification. Ensure the procurement channel provides original manufacturer documentation to validate the 200 V rating and 1 A current capacity against counterfeit risks.

Selection Notes

Select this component for applications requiring moderate reverse voltage blocking up to 200 V with continuous currents up to 1 A. The axial R-1 package is appropriate for designs prioritizing mechanical stability over surface area constraints. Consider thermal management requirements given the wide operating temperature range and ensure the layout accommodates the leaded footprint.

Part Context

This part belongs to the general-purpose diode family from SMC Diode Solutions, designed for basic rectification tasks. It shares the R-1 axial package format with other variants in the series, differing primarily in voltage ratings. The component serves as a fundamental discrete semiconductor element for converting AC to DC in low-to-medium power applications.

Replacement Considerations

Cross-reference with other 200 V, 1 A axial diodes if availability is limited. Verify that substitute components match the R-1 package dimensions and electrical specifications precisely.