MCL103C-TR3 Equivalent & Substitute Parts

Part Overview

The MCL103C-TR3 is a Schottky diode rated for 20 V DC reverse voltage and 200 mA average rectified current in a MicroMELF surface mount package. Manufactured by Vishay General Semiconductor - Diodes Division, this component is qualified to AEC-Q101 automotive standards and carries Active product status. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design continuity when the primary part number becomes unavailable or when alternative electrical characteristics better suit specific application requirements.

Substiute Parts

MCL103C-TR3

Vishay General Semiconductor - Diodes DivisionIn Stock: 10796MCL103C-TR3 Datasheet

Current PartRFQ

MCL103C-TR

Vishay General Semiconductor - Diodes DivisionIn Stock: 52931MCL103C-TR Datasheet

Parametric EquivalentRFQ

CDBU0520

Comchip TechnologyIn Stock: 1964CDBU0520 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MCL103C-TR3 is determined by equivalence in the following critical parameters:

Parametric Equivalence Criteria:

• Voltage - DC Reverse (Vr) (Max): 20 V minimum
• Current - Average Rectified (Io): 200 mA minimum
• Technology: Schottky diode
• Mounting Type: Surface Mount
• Grade: Automotive qualification preferred
• Compliance: RoHS3 and AEC-Q101 certification

Parametric Equivalent Classification: The MCL103C-TR (Vishay General Semiconductor - Diodes Division) is a parametric equivalent. It shares identical electrical ratings, automotive qualification, and compliance status. The primary distinction is packaging configuration within the Tape & Reel format.

Manufacturer Recommended Substitute Classification: The CDBU0520 (Comchip Technology) is a manufacturer-recommended substitute with higher current capacity (500 mA vs. 200 mA) and improved forward voltage characteristics (470 mV @ 500 mA vs. 600 mV @ 200 mA). This part operates within the same 20 V reverse voltage specification and maintains automotive-grade compliance. The package format differs (0603/SOD-523F vs. MicroMELF), requiring PCB layout verification.

Parameter Comparison

Engineering Selection Recommendations

MCL103C-TR (Parametric Equivalent): Direct substitution is supported. This part maintains identical electrical specifications, automotive qualification (AEC-Q101), and RoHS3 compliance. Packaging configuration within the Tape & Reel format is the only variable. Selection is appropriate for applications requiring exact electrical performance matching and automotive-grade reliability.

CDBU0520 (Manufacturer Recommended Substitute): Substitution is supported for applications where higher current capacity (500 mA) and lower forward voltage (470 mV @ 500 mA) provide design advantages. The 0603/SOD-523F package format requires PCB layout modification compared to the MicroMELF package. Reverse leakage current is higher (100 µA @ 20 V vs. 5 µA @ 10 V), which may impact low-power circuit performance. Automotive-grade compliance is maintained. Selection is appropriate when thermal performance or current headroom is a design priority and PCB layout can accommodate the alternative package footprint.

Frequently Asked Questions (FAQ)

Q: Can MCL103C-TR be used as a direct replacement for MCL103C-TR3?

A: Yes. Both parts are manufactured by Vishay General Semiconductor - Diodes Division and share identical electrical specifications: 20 V reverse voltage, 200 mA average rectified current, 600 mV forward voltage at 200 mA, and 5 µA reverse leakage at 10 V. Both carry AEC-Q101 automotive qualification and ROHS3 compliance. The difference is packaging configuration within the Tape & Reel format. No circuit modification is required.

Q: What are the key differences between MCL103C-TR3 and CDBU0520?

A: The CDBU0520 offers higher current capacity (500 mA vs. 200 mA) and lower forward voltage (470 mV @ 500 mA vs. 600 mV @ 200 mA). Both maintain 20 V reverse voltage rating and automotive-grade compliance. The package format differs: CDBU0520 uses 0603/SOD-523F while MCL103C-TR3 uses MicroMELF. Reverse leakage current is higher in the CDBU0520 (100 µA @ 20 V vs. 5 µA @ 10 V).

Q: Is the CDBU0520 suitable for low-power applications?

A: The CDBU0520 is suitable for applications where current requirements are within its 500 mA rating. However, the higher reverse leakage current (100 µA @ 20 V) may be a consideration in ultra-low-power circuits. For applications requiring minimal leakage current, the MCL103C-TR3 or MCL103C-TR (5 µA @ 10 V) is preferred.

Q: Does package size affect electrical performance?

A: Package size does not affect the electrical performance specifications of the diode. However, package format (MicroMELF vs. 0603/SOD-523F) affects PCB footprint, thermal dissipation characteristics, and board layout. Thermal performance may differ between packages due to variations in lead geometry and solder pad configuration.

Q: Are all substitute parts automotive-qualified?

A: MCL103C-TR and MCL103C-TR3 carry AEC-Q101 automotive qualification. CDBU0520 is specified as automotive-grade; however, AEC-Q101 certification status is not explicitly provided in the available data. Verification with the manufacturer is recommended if AEC-Q101 certification is a mandatory requirement.

Q: What is the moisture sensitivity level for these parts?

A: All three parts (MCL103C-TR3, MCL103C-TR, and CDBU0520) carry Moisture Sensitivity Level (MSL) 1, indicating unlimited shelf life without moisture control requirements.