AS3PD-M3/86A

Overview

The AS3PD-M3/86A is a surface-mount Avalanche Rectifier from Vishay, housed in the TO-277A (SMPC) package. It features a 200V DC reverse voltage rating and a 2.1A average forward current capability. The device utilizes eSMP technology for enhanced performance. Key electrical parameters include a maximum clamping voltage of 48.4V at peak pulse current, a typical breakdown voltage of 222V, and a low reverse leakage current of 5µA at rated voltage. It operates within a junction temperature range of -55°C to 175°C.

Feature Summary

• Engineered with eSMP technology for robust avalanche energy handling
• Designed for high-reliability applications requiring controlled avalanche characteristics
• Utilizes a compact surface-mount TO-277A package for efficient board space utilization

Applications

• Inductive load switching circuits
• Flyback diode protection in power supplies
• General-purpose rectification in automotive electronics

Procurement Notes

Verify the specific suffix configuration against official Vishay documentation to ensure compatibility with your design requirements. Confirm that the component meets all necessary regulatory standards for your target market. Cross-reference the manufacturer part number with authorized distributor listings to validate authenticity and traceability before finalizing procurement decisions.

Selection Notes

Select this component when circuit designs require a standard recovery rectifier capable of sustaining avalanche conditions without failure. The 200V rating suits medium-voltage applications, while the 2.1A current capacity supports moderate power levels. Consider the thermal management capabilities of the TO-277A package for heat dissipation needs in enclosed environments.

Part Context

This part belongs to Vishay's AS3P series of Avalanche Rectifiers, which are optimized for use in circuits where transient overvoltages may occur. The series offers various voltage ratings to accommodate different system requirements. These devices are designed to replace standard diodes in applications prone to inductive kickback, providing improved reliability and longevity compared to non-avalanche-rated alternatives.

Replacement Considerations

Direct substitutes include other Vishay AS3P series parts with matching voltage and current ratings, such as AS3PG-M3/86A for 400V applications or AS3PK-M3/86A for 800V requirements. Ensure any replacement maintains the same package type and avalanche energy specifications to preserve circuit integrity.