AR4PJ-M3/86A Equivalent & Substitute Parts

Part Overview

The AR4PJ-M3/86A is an avalanche diode manufactured by Vishay General Semiconductor - Diodes Division, part of the eSMP® series. This surface mount rectifier diode is rated for 600 V DC reverse voltage with 2 A average rectified current and operates across a junction temperature range of -55°C to 175°C. The device is classified as Active product status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Substitute parts are identified to address application requirements including higher current ratings, alternative packaging formats, or inventory availability while maintaining electrical parameter compatibility within the 600 V reverse voltage class and fast recovery speed characteristics.

Substiute Parts

AR4PJ-M3/86A

Vishay General Semiconductor - Diodes DivisionIn Stock: 1107AR4PJ-M3/86A Datasheet

Current PartRFQ

STTH3R06U

STMicroelectronicsIn Stock: 10135STTH3R06U Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AR4PJ-M3/86A is determined by the following critical electrical parameters:

Primary Substitution Criteria:

• Voltage - DC Reverse (Vr) (Max): 600 V minimum
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: MSL 1 (Unlimited)

Secondary Compatibility Factors:

• Current - Average Rectified (Io): Equal to or greater than 2 A
• Voltage - Forward (Vf) (Max): Within acceptable circuit design margins
• Operating Temperature Range: Minimum -55°C to 175°C junction temperature capability

The STTH3R06U qualifies as a substitute part based on matching the 600 V reverse voltage rating, fast recovery speed classification, surface mount technology, ROHS3 compliance, and MSL 1 rating. The substitute provides higher current capacity (3 A versus 2 A) and improved reverse recovery time (35 ns versus 140 ns), making it suitable for applications requiring enhanced performance within the same voltage class.

Parameter Comparison

Engineering Selection Recommendations

AR4PJ-M3/86A Selection Basis: The AR4PJ-M3/86A is appropriate for applications requiring a 600 V avalanche diode with 2 A average rectified current in TO-277A (SMPC) surface mount packaging. This part maintains Active product status with full ROHS3 compliance and unlimited moisture sensitivity rating, suitable for standard manufacturing and storage conditions.

STTH3R06U Substitution Basis: The STTH3R06U serves as a substitute where higher current capacity (3 A) is required within the same 600 V voltage class. Both parts maintain identical compliance certifications (ROHS3, MSL 1) and Active product status. The substitute exhibits superior reverse recovery time performance (35 ns versus 140 ns) and lower reverse leakage current (3 µA versus 10 µA). Package format differs between TO-277A (SMPC) and SMB (DO-214AA), requiring PCB layout verification for mechanical fit and thermal management compatibility.

Selection between these parts depends on circuit current requirements, available PCB footprint space, and thermal dissipation design. Both parts satisfy the 600 V reverse voltage and fast recovery speed classifications required for equivalent electrical function.

Frequently Asked Questions (FAQ)

Q: Can the STTH3R06U directly replace the AR4PJ-M3/86A in all applications?

A: Electrical substitution is valid for applications operating at or below 2 A average rectified current. The STTH3R06U provides higher current capacity (3 A) and faster reverse recovery (35 ns), making it suitable for equivalent or enhanced performance. However, package format differs (SMB versus TO-277A), requiring PCB footprint and thermal design verification before implementation.

Q: What are the key electrical parameters that determine substitution compatibility?

A: The critical parameters are: Voltage - DC Reverse (Vr) (Max) of 600 V, fast recovery speed classification (≤ 500ns, > 200mA), surface mount mounting type, ROHS3 compliance, and MSL 1 rating. Current - Average Rectified (Io) must equal or exceed 2 A. Forward voltage and reverse recovery time are secondary factors that may improve performance in the substitute.

Q: Are there compliance or regulatory differences between these parts?

A: Both parts maintain identical compliance status: ROHS3 Compliant, MSL 1 (Unlimited), REACH Unaffected, and EAR99 ECCN classification. No regulatory or environmental compliance barriers exist for substitution.

Q: What is the impact of different package formats on circuit design?

A: The AR4PJ-M3/86A uses TO-277A (SMPC) packaging while the STTH3R06U uses SMB (DO-214AA) packaging. These formats have different footprint dimensions, lead configurations, and thermal characteristics. PCB layout must be verified for mechanical fit, solder pad compatibility, and thermal dissipation requirements specific to each package type.

Q: How do the reverse recovery time differences affect circuit performance?

A: The STTH3R06U exhibits 35 ns reverse recovery time compared to 140 ns for the AR4PJ-M3/86A. Faster reverse recovery reduces switching losses and electromagnetic interference in high-frequency applications. This represents an improvement when substituting, with no negative performance impact in standard rectification circuits.

Q: What inventory considerations apply to these substitute parts?

A: The AR4PJ-M3/86A has 1085 pieces in stock, while the STTH3R06U has 10100 pieces available. Substitute selection may be influenced by inventory availability and lead time requirements for production scheduling.