AS4PJ-M3/86A

Overview

The AS4PJ-M3/86A is a high current density standard avalanche surface-mount rectifier manufactured by Vishay General Semiconductor. It features a single circuit configuration in an SMPC (TO-277A) package with a typical height of 1.1 mm. The device supports a maximum repetitive peak reverse voltage of 600 V and a DC forward current of 4.0 A. It withstands a peak forward surge current of 100 A and offers controlled avalanche characteristics with an energy rating of 20 mJ at IAS = 2.5 A. The component operates within a junction temperature range of -55 to +175 °C, ensuring reliability in demanding power applications.

Feature Summary

• Glass passivated pellet chip junction for enhanced stability
• Controlled avalanche characteristics for robust performance under transient conditions
• Very low profile design suitable for automated placement processes
• Halogen-free and RoHS-compliant construction

Applications

• General purpose rectification in power supplies
• Freewheeling diodes for consumer electronics
• Inverter and converter circuits
• Automotive electronic systems
• Telecommunication equipment

Procurement Notes

Verify the specific ordering code against the required voltage rating and qualification level. The base part number suffix M3 indicates halogen-free and RoHS compliance for commercial grade applications. Confirm the package code matches the intended reel size and quantity requirements. Ensure compatibility with JESD 201 whisker test standards during integration planning.

Selection Notes

Select this component when a single standard recovery rectifier with avalanche capability is required in a compact surface-mount form factor. The TO-277A package provides high current density suitable for space-constrained designs. Consider the thermal resistance values for heat dissipation calculations in enclosed environments. Verify that the 600 V reverse voltage rating aligns with the system's peak operating voltages.

Part Context

This device belongs to the AS4P series of high current density standard avalanche surface-mount rectifiers from Vishay. The series includes variants with different voltage ratings such as AS4PD, AS4PG, AS4PK, and AS4PM. All members share the same physical footprint and mechanical data, differing primarily in their maximum repetitive peak reverse voltage specifications.

Replacement Considerations

Direct substitutes include other Vishay AS4P series devices with matching voltage ratings or higher reverse voltage capabilities. Cross-brand replacements must match the TO-277A package dimensions, 4 A forward current rating, and avalanche energy specifications to ensure functional equivalence.