SS2P4HM3/84A Equivalent & Substitute Parts

Part Overview

The SS2P4HM3/84A is an active Schottky rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates at 40 V DC reverse voltage with a 2 A average rectified current rating and is housed in a DO-220AA (SMP) package. The device is qualified to AEC-Q101 automotive standards and complies with ROHS3 and REACH requirements.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter set. Alternative sources and package variants may be required due to inventory availability, supply chain considerations, or specific application constraints.

Substiute Parts

SS2P4HM3/84A

Vishay General Semiconductor - Diodes DivisionIn Stock: 2450SS2P4HM3/84A Datasheet

Current PartRFQ

SS2P4-M3/84A

Vishay General Semiconductor - Diodes DivisionIn Stock: 107243SS2P4-M3/84A Datasheet

Parametric EquivalentRFQ

DFLS240LQ-7

Diodes IncorporatedIn Stock: 3129DFLS240LQ-7 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SS2P4HM3/84A are classified based on electrical parameter equivalence and mechanical compatibility. The substitution logic is determined by the following critical parameters:

Electrical Equivalence Criteria:

• Voltage - DC Reverse (Vr) (Max): 40 V minimum
• Current - Average Rectified (Io): 2 A minimum
• Technology: Schottky rectifier
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Mechanical Compatibility Criteria:

• Mounting Type: Surface Mount
• Package compatibility or functional equivalence in alternative packages

Compliance Criteria:

• RoHS3 Compliant
• Automotive Grade and AEC-Q101 Qualification

Parametric Equivalent Classification: Parts meeting all electrical and compliance criteria with identical or superior ratings in the same or compatible package are classified as parametric equivalents.

Direct Manufacturer Classification: Parts from alternative manufacturers meeting electrical and compliance criteria but with different package types are classified as direct manufacturer alternatives.

Parameter Comparison

Engineering Selection Recommendations

SS2P4-M3/84A (Parametric Equivalent): The SS2P4-M3/84A is a parametric equivalent from Vishay General Semiconductor - Diodes Division. This part maintains identical electrical specifications including 40 V reverse voltage, 2 A average rectified current, 550 mV forward voltage at 2 A, and fast recovery characteristics. The component is housed in the same DO-220AA package and complies with ROHS3 requirements. Selection of this part is appropriate when Vishay sourcing is preferred and inventory availability is a consideration. Automotive grade and AEC-Q101 qualification status are not specified for this variant.

DFLS240LQ-7 (Direct Manufacturer Alternative): The DFLS240LQ-7 from Diodes Incorporated meets the core electrical requirements of 40 V reverse voltage and 2 A average rectified current with fast recovery characteristics. This part is housed in a POWERDI®123 package, which differs from the DO-220AA package of the main part. The forward voltage specification is 650 mV at 3 A, which is higher than the main part specification. The reverse leakage current is 50 µA at 20 V, which is lower than the main part specification. The maximum operating junction temperature is 125°C, compared to 150°C for the main part. This part carries automotive grade and AEC-Q101 qualification. Selection of this part is appropriate when alternative packaging is acceptable and Diodes Incorporated sourcing is required. Package footprint and thermal characteristics must be verified for mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Can SS2P4-M3/84A be used as a direct replacement for SS2P4HM3/84A?

A: The SS2P4-M3/84A is electrically equivalent to the SS2P4HM3/84A with identical voltage, current, and speed specifications. Both components use the DO-220AA package. Automotive grade and AEC-Q101 qualification status are not specified for the SS2P4-M3/84A variant, which may be a consideration for applications requiring explicit automotive certification.

Q: What are the package differences between the main part and DFLS240LQ-7?

A: The SS2P4HM3/84A uses a DO-220AA (SMP) package, while the DFLS240LQ-7 uses a POWERDI®123 package. These are different physical packages with different footprints and thermal characteristics. PCB layout and thermal management design must be re-evaluated if substituting between these packages.

Q: Are all three parts RoHS3 compliant?

A: Yes, all three parts—SS2P4HM3/84A, SS2P4-M3/84A, and DFLS240LQ-7—are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited).

Q: What is the difference in forward voltage between the main part and DFLS240LQ-7?

A: The SS2P4HM3/84A specifies 550 mV forward voltage at 2 A, while the DFLS240LQ-7 specifies 650 mV forward voltage at 3 A. The higher forward voltage of the DFLS240LQ-7 may result in increased power dissipation in the application circuit.

Q: Does the DFLS240LQ-7 have the same temperature range as the main part?

A: No. The SS2P4HM3/84A operates from -55°C to 150°C junction temperature, while the DFLS240LQ-7 operates from -55°C to 125°C. Applications requiring operation above 125°C junction temperature cannot use the DFLS240LQ-7.

Q: Are both substitute parts automotive qualified?

A: The SS2P4-M3/84A does not specify automotive grade or AEC-Q101 qualification. The DFLS240LQ-7 carries both automotive grade and AEC-Q101 qualification. Applications requiring explicit automotive certification should verify the qualification status of the selected part.