MCL103A-TR3 Equivalent & Substitute Parts

Part Overview

The MCL103A-TR3 is a Schottky rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, designed for surface mount applications in the MicroMELF package. This component operates at 40 V DC reverse voltage with a 200 mA average rectified current rating and is qualified to AEC-Q101 automotive standards. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across the specified parameters. Alternative sources and packaging configurations may be required due to inventory availability, supply chain considerations, or specific application mounting constraints.

Substiute Parts

MCL103A-TR3

Vishay General Semiconductor - Diodes DivisionIn Stock: 868MCL103A-TR3 Datasheet

Current PartRFQ

MCL103A-TR

Vishay General Semiconductor - Diodes DivisionIn Stock: 3258MCL103A-TR Datasheet

Parametric EquivalentRFQ

CDBUR0240

Comchip TechnologyIn Stock: 1126CDBUR0240 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MCL103A-TR3 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
• Current - Average Rectified (Io): 200 mA
• Technology: Schottky
• Operating Temperature - Junction (Max): 125°C

Mechanical Compatibility Criteria:

• Mounting Type: Surface Mount
• Package / Case: 2-SMD, No Lead

Compliance Requirements:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Parts meeting all electrical and mechanical criteria are classified as parametric equivalents. Parts meeting electrical criteria but utilizing alternative package configurations are classified as functional equivalents with package considerations.

Parameter Comparison

Engineering Selection Recommendations

MCL103A-TR (Parametric Equivalent)

The MCL103A-TR is a direct parametric equivalent to the MCL103A-TR3, manufactured by the same supplier (Vishay General Semiconductor - Diodes Division) with identical electrical specifications. Both parts share the same base product number (MCL103), technology (Schottky), voltage rating (40 V), current rating (200 mA), and operating temperature range (125°C max junction temperature). The primary difference is packaging format: MCL103A-TR is supplied in both Cut Tape (CT) and Digi-Reel® configurations, whereas MCL103A-TR3 is supplied in Cut Tape only. Both maintain ROHS3 compliance, MSL 1 rating, and active product status. Selection of MCL103A-TR is appropriate when alternative packaging or supply formats are required without modification to circuit design or PCB layout.

CDBUR0240 (Functional Equivalent with Package Variation)

The CDBUR0240, manufactured by Comchip Technology, meets the core electrical requirements of 40 V reverse voltage and 200 mA average rectified current with Schottky technology and 125°C maximum junction temperature. This part maintains ROHS3 compliance and MSL 1 rating. The forward voltage specification (550 mV @ 200 mA) is lower than the MCL103A-TR3 (600 mV @ 200 mA), indicating improved efficiency characteristics. However, the CDBUR0240 utilizes a 0603/SOD-523F package configuration, which differs from the MicroMELF package of the main part. This package variation requires PCB layout modification and is not a direct mechanical substitute. Selection of CDBUR0240 is appropriate when circuit design permits package substitution and the improved forward voltage characteristic is beneficial to application performance.

Frequently Asked Questions (FAQ)

Q: Can MCL103A-TR be used as a direct replacement for MCL103A-TR3 without PCB modification?

A: Yes. The MCL103A-TR is a parametric equivalent with identical electrical specifications and the same MicroMELF package configuration. No PCB layout modification is required. The difference is limited to packaging format (Cut Tape vs. Cut Tape and Digi-Reel®).

Q: What is the primary difference between MCL103A-TR3 and CDBUR0240?

A: Both parts meet the 40 V, 200 mA electrical requirements with Schottky technology. The CDBUR0240 offers a lower forward voltage (550 mV vs. 600 mV at 200 mA). However, the CDBUR0240 uses a 0603/SOD-523F package instead of MicroMELF, requiring PCB layout redesign.

Q: Are all three parts (MCL103A-TR3, MCL103A-TR, CDBUR0240) automotive qualified?

A: The MCL103A-TR3 and MCL103A-TR are both qualified to AEC-Q101 automotive standards. The CDBUR0240 specifications provided do not include AEC-Q101 qualification data. Verification of automotive qualification status for the CDBUR0240 is required for automotive applications.

Q: What does MSL 1 (Unlimited) mean for moisture sensitivity?

A: MSL 1 indicates the lowest moisture sensitivity level, meaning the component has unlimited shelf life without special moisture control storage requirements. All three parts carry this rating.

Q: Can CDBUR0240 be substituted without circuit performance changes?

A: The CDBUR0240 has a lower forward voltage (550 mV vs. 600 mV), which reduces power dissipation and improves efficiency. This is a beneficial characteristic change. However, PCB layout modification is mandatory due to package differences (0603/SOD-523F vs. MicroMELF).

Q: Are all substitute parts ROHS3 compliant?

A: Yes. MCL103A-TR3, MCL103A-TR, and CDBUR0240 are all ROHS3 compliant with REACH Unaffected status.

Q: What is the difference between Cut Tape and Digi-Reel® packaging?

A: Both are surface mount tape and reel formats for automated assembly. Cut Tape (CT) is supplied in fixed-length segments, while Digi-Reel® is a continuous reel format. The electrical and mechanical specifications of the component remain identical; the difference is in supply format and handling.