RBE05AS20AT2R Equivalent & Substitute Parts

Part Overview

The RBE05AS20AT2R is a Schottky diode manufactured by Rohm Semiconductor, rated for 20 V DC reverse voltage and 500 mA average rectified current. This component is packaged in a 2-SMD, No Lead configuration (VML2) and is classified as obsolete. Due to its obsolete status, equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production runs and field replacements.

Substiute Parts

RBE05AS20AT2R

Rohm SemiconductorIn Stock: 66877RBE05AS20AT2R Datasheet

Current PartRFQ

RB161QS-40T18R

Rohm SemiconductorIn Stock: 69121RB161QS-40T18R Datasheet

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PMEG3005EL,315

Nexperia USA Inc.In Stock: 25109PMEG3005EL,315 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RBE05AS20AT2R are identified based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

• Technology: Schottky diode
• Mounting Type: Surface Mount
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
• RoHS3 Compliance
• Moisture Sensitivity Level: 1 (Unlimited)

Voltage and Current Ratings: Substitute parts must meet or exceed the original specifications for voltage (20 V minimum) and current (500 mA minimum) ratings. Parts with higher voltage and current ratings are acceptable for direct substitution in applications where the original part is used, as they provide enhanced performance margins.

Package Compatibility: Surface mount packages with 2-SMD, No Lead configurations are considered compatible. Variations in supplier device package designations (VML2, SMD1006, DFN1006-2) are acceptable provided the physical footprint and electrical performance align with circuit requirements.

Parameter Comparison

Engineering Selection Recommendations

RB161QS-40T18R (Rohm Semiconductor): This substitute part is manufactured by the same supplier as the original component and maintains active product status. It provides enhanced voltage rating (40 V versus 20 V) and current capacity (1 A versus 500 mA), offering improved performance margins for the same application. The part is ROHS3 compliant and carries unlimited moisture sensitivity rating. Operating temperature range extends to 150°C, providing thermal headroom beyond the original specification. This part is suitable for direct substitution in designs where the original RBE05AS20AT2R is specified.

PMEG3005EL,315 (Nexperia USA Inc.): This substitute part is manufactured by Nexperia and maintains active product status. It provides voltage rating of 30 V and matches the original 500 mA current specification. Forward voltage drop is lower (500 mV @ 500 mA versus 530 mV @ 500 mA), resulting in reduced power dissipation. The part carries AEC-Q100 automotive qualification and is ROHS3 compliant with unlimited moisture sensitivity rating. Operating temperature extends to 150°C. This part is suitable for direct substitution where the original RBE05AS20AT2R is specified, with the additional benefit of automotive-grade qualification.

Both substitute parts satisfy the core functional requirements of the obsolete RBE05AS20AT2R and are available in active production status.

Frequently Asked Questions (FAQ)

Q: Can the RB161QS-40T18R be used as a direct replacement for the RBE05AS20AT2R?

A: Yes. The RB161QS-40T18R meets all functional requirements for substitution. It exceeds the original voltage (40 V > 20 V) and current (1 A > 500 mA) ratings, operates at higher junction temperature (150°C > 125°C), and maintains the same fast recovery speed classification and RoHS3 compliance. The 2-SMD, No Lead package configuration is compatible with the original design.

Q: Can the PMEG3005EL,315 be used as a direct replacement for the RBE05AS20AT2R?

A: Yes. The PMEG3005EL,315 meets all functional requirements for substitution. It exceeds the original voltage rating (30 V > 20 V), matches the current rating (500 mA), and operates at higher junction temperature (150°C > 125°C). Forward voltage drop is lower, reducing power dissipation. The part carries automotive-grade qualification (AEC-Q100) and maintains RoHS3 compliance. Package compatibility requires verification of physical footprint alignment with the original VML2 design.

Q: What are the key differences between the two substitute parts?

A: The RB161QS-40T18R provides higher current capacity (1 A versus 500 mA) and voltage rating (40 V versus 30 V), making it suitable for applications requiring greater performance margins. The PMEG3005EL,315 offers lower forward voltage drop (500 mV versus 530 mV at 500 mA), reducing power dissipation and heat generation. The PMEG3005EL,315 carries automotive qualification, making it suitable for automotive applications. Both parts are manufactured by different suppliers and maintain active production status.

Q: Are there package compatibility considerations when substituting these parts?

A: The RB161QS-40T18R uses the SMD1006 package, which is compatible with the original VML2 package in terms of 2-SMD, No Lead configuration. The PMEG3005EL,315 uses the SOD-882 package. Physical footprint verification is required to confirm compatibility with the original circuit board layout. Consult component datasheets for precise dimensional specifications.

Q: Do all substitute parts maintain RoHS3 compliance?

A: Yes. Both substitute parts are ROHS3 compliant and carry unlimited moisture sensitivity rating (MSL 1), matching the original RBE05AS20AT2R specifications.

Q: What is the significance of the obsolete status of the original part?

A: The RBE05AS20AT2R is classified as obsolete, indicating that Rohm Semiconductor has discontinued production. The substitute parts listed are in active production status, ensuring long-term availability and supply chain continuity for new designs and field replacements.