AR1PK-M3/85A

Overview

The AR1PK-M3/85A is a single avalanche rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. It features a maximum DC reverse voltage of 800 V and an average forward rectified current of 1 A. The component utilizes the DO-220AA (SMP) surface-mount package and operates within a junction temperature range of -55°C to +175°C. It is RoHS compliant, lead-free, and carries AEC-Q100 qualification for automotive applications.

Feature Summary

• Engineered with avalanche characteristics to withstand repetitive avalanche energy conditions without degradation.
• Qualified under AEC-Q100 standards for reliability in demanding automotive electronic environments.
• Constructed using lead-free technology with a matte tin plating finish on terminals.

Applications

• Automotive power supply circuits requiring high-reliability components
• Inductive load switching applications subject to voltage transients
• General-purpose rectification in automotive electronics

Procurement Notes

Verify the specific suffix /85A corresponds to the tape and reel packaging configuration when ordering. Confirm that the AEC-Q100 qualification meets the specific reliability requirements of the target application. Ensure compatibility with the DO-220AA footprint during PCB layout design. Cross-reference the datasheet for thermal management guidelines related to the surface-mount package.

Selection Notes

Select this component when an 800 V reverse voltage rating and 1 A continuous current capacity are required in a compact surface-mount form factor. The avalanche capability makes it suitable for circuits experiencing significant inductive kickback or transient voltage spikes. Consider the operating temperature range and thermal resistance if the application involves high ambient temperatures or limited heat dissipation paths.

Part Context

This part belongs to the AR1P series of avalanche rectifiers from Vishay. These devices are designed specifically for robust performance in harsh electrical environments. The series offers various voltage ratings while maintaining consistent current handling capabilities across different package options.

Replacement Considerations

Direct substitutes must match the 800 V reverse voltage, 1 A current rating, DO-220AA package, and avalanche特性. Verify pinout compatibility and thermal characteristics before substitution.