MA27D3000L Equivalent & Substitute Parts

Part Overview

The MA27D3000L is a Schottky diode manufactured by Panasonic Electronic Components, rated for 30 V DC reverse voltage with 100 mA average rectified current. This component is packaged in a 2-SMD, Flat Lead surface mount configuration (SSSMini2-F2) and is classified as obsolete. Due to its obsolete product status, equivalent substitute parts are necessary for ongoing production requirements, maintenance applications, and design continuity where this diode function is required in existing assemblies.

Substiute Parts

MA27D3000L

Panasonic Electronic ComponentsIn Stock: 53475MA27D3000L Datasheet

Current PartRFQ

RB521CS-30T2R

Rohm SemiconductorIn Stock: 69088RB521CS-30T2R Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the MA27D3000L is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Technology: Schottky diode
• Voltage - DC Reverse (Vr) (Max): 30 V minimum
• Current - Average Rectified (Io): 100 mA minimum
• Mounting Type: Surface Mount
• Package / Case: 2-SMD, Flat Lead configuration

Functional Compatibility Parameters:

• Speed Classification: Small Signal ≤ 200mA (Io), Any Speed
• Moisture Sensitivity Level: MSL 1 (Unlimited)

The RB521CS-30T2R from Rohm Semiconductor meets all mandatory matching parameters. Both devices are Schottky diodes with identical voltage and current ratings, surface mount construction, and 2-SMD flat lead packaging. Both components carry MSL 1 classification, indicating unlimited moisture sensitivity tolerance.

Parameter Comparison

Engineering Selection Recommendations

MA27D3000L (Panasonic): This component is classified as obsolete. New procurement is not recommended for new designs or production programs. Existing inventory is available for legacy system support and maintenance applications only.

RB521CS-30T2R (Rohm Semiconductor): This substitute part meets all mandatory electrical and mechanical parameters required for functional equivalence. The RB521CS-30T2R is classified as "Not For New Designs," indicating limited future availability. The component carries ROHS3 compliance and REACH Unaffected status, meeting current regulatory requirements. The higher maximum junction temperature rating (150°C versus 125°C) provides additional thermal margin in applications where the MA27D3000L was previously used.

For applications requiring continued component availability and regulatory compliance, evaluation of the RB521CS-30T2R is appropriate where the specified electrical parameters are compatible with circuit requirements. Physical package compatibility (SSSMini2-F2 versus VMN2/SOD-923) must be verified for PCB layout and assembly considerations.

Frequently Asked Questions (FAQ)

Q: Can the RB521CS-30T2R directly replace the MA27D3000L in existing assemblies?

A: The RB521CS-30T2R meets all mandatory electrical parameters: 30 V reverse voltage rating, 100 mA current rating, Schottky technology, and 2-SMD flat lead surface mount packaging. Physical package compatibility must be confirmed, as the MA27D3000L uses SSSMini2-F2 packaging while the RB521CS-30T2R uses VMN2 (SOD-923) packaging. PCB footprint verification is required before assembly.

Q: What are the key differences between these two diodes?

A: Both devices are functionally equivalent Schottky diodes with identical voltage and current ratings. The RB521CS-30T2R exhibits lower forward voltage drop (350 mV @ 10 mA versus 580 mV @ 100 mA) and higher maximum junction temperature (150°C versus 125°C). Reverse leakage current specifications are measured at different voltage points and cannot be directly compared. The RB521CS-30T2R carries ROHS3 compliance certification.

Q: Why is the MA27D3000L classified as obsolete?

A: The MA27D3000L is an obsolete product from Panasonic Electronic Components. Manufacturers discontinue products for various reasons including market consolidation, technology advancement, or production line optimization. Existing inventory remains available for legacy applications and maintenance requirements.

Q: Are there other substitute options for the MA27D3000L?

A: The RB521CS-30T2R is the primary substitute listed for the MA27D3000L. The RB521CS-30T2R documentation indicates additional substitute relationships (RB521S30,115; NSR0140P2T5G; RB521CM-30T2R; 1SS416,L3M; RB521CS30L,315), which may provide alternative sourcing options. Electrical and mechanical parameter verification is required for any additional substitutes.

Q: What is the significance of the MSL 1 (Unlimited) rating?

A: MSL 1 (Unlimited) indicates that both the MA27D3000L and RB521CS-30T2R have unlimited shelf life and do not require special moisture control during storage or handling. These components do not require baking or desiccant packaging, simplifying inventory management and reducing component preparation time.

Q: How do the package designations SSSMini2-F2 and VMN2 (SOD-923) affect substitution?

A: SSSMini2-F2 and VMN2 (SOD-923) are different physical package designations for 2-SMD flat lead surface mount diodes. While both are 2-SMD configurations, the physical dimensions and PCB footprints may differ. PCB layout compatibility must be verified before substitution to ensure proper component placement and solder joint formation.