AS1PJ-M3/84A

Overview

The AS1PJ-M3/84A is a standard avalanche surface mount rectifier from Vishay General Semiconductor, part of the eSMP series. It features a glass passivated pellet chip junction in an SMP (DO-220AA) package. Key electrical parameters include a maximum repetitive peak reverse voltage (VRRM) of 600 V and a maximum DC forward current (IF(AV)) of 1.5 A. The device supports a peak forward surge current (IFSM) of 30 A and has a non-repetitive avalanche energy rating (EAS) of 20 mJ at IAS = 1.0 A. Typical instantaneous forward voltage (VF) is 0.99 V at IF = 1.5 A and 25 °C, with a typical reverse recovery time (trr) of 1.5 μs. Operating junction temperature ranges from -55 °C to +175 °C.

Feature Summary

• Controlled avalanche characteristics for robust operation under transient conditions
• Glass passivated pellet chip junction providing environmental stability
• Low forward voltage drop and low leakage current for efficiency
• Automotive grade qualification per AEC-Q101 standards

Applications

• General purpose rectification in power supplies
• Freewheeling diodes in inverters and converters
• Consumer electronics circuits
• Automotive electronic systems
• Telecommunication equipment

Procurement Notes

Verify the specific ordering suffix to confirm packaging quantity and reel diameter. The /84A suffix indicates a 7-inch diameter plastic tape and reel with a base quantity of 3000 units. Confirm that the M3 suffix denotes halogen-free and RoHS compliance for commercial grade applications. Ensure the HM3 variant is selected if automotive grade qualification is required for the design.

Selection Notes

Select this component when a 600 V blocking capability is required alongside a 1.5 A continuous current rating in a compact surface mount footprint. The controlled avalanche characteristic makes it suitable for inductive load switching where energy absorption is necessary. Verify thermal management requirements against the junction-to-ambient thermal resistance of 115 °C/W for proper heat dissipation in the target application environment.

Part Context

This device belongs to the AS1PD through AS1PM family of standard avalanche rectifiers. The 'PJ' designation specifically identifies the 600 V reverse voltage variant within the series. All members share identical mechanical dimensions and thermal characteristics but differ in their breakdown voltage ratings. The eSMP series provides a standardized low-profile solution for high-reliability rectification needs across multiple industries.

Replacement Considerations

Direct substitutes within the same Vishay family include AS1PG (400 V), AS1PK (800 V), and AS1PM (1000 V) if voltage ratings can be adjusted. Cross-manufacturer replacements must match the 1.5 A current rating, 600 V reverse voltage, and DO-220AA package outline. Verify avalanche energy ratings and thermal resistance values before implementation.