MBR1550CT C0G Equivalent & Substitute Parts

Part Overview

The MBR1550CT C0G is a Schottky diode array manufactured by Taiwan Semiconductor Corporation, configured as a 1 Pair Common Cathode arrangement with a 50 V DC reverse voltage rating and 15 A average rectified current per diode. This component is packaged in a Through Hole TO-220-3 configuration and is classified as Active product status. The device is RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Substitute parts are necessary when the primary manufacturer part becomes unavailable, when alternative sourcing is required for supply chain optimization, or when design requirements permit operation within the electrical and mechanical parameters of equivalent alternatives.

Substiute Parts

MBR1550CT C0G

Taiwan Semiconductor CorporationIn Stock: 840MBR1550CT C0G Datasheet

Current PartRFQ

MBR2545CTG

onsemiIn Stock: 15334MBR2545CTG Datasheet

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MBR2550CT

Diodes IncorporatedIn Stock: 3201MBR2550CT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the MBR1550CT C0G is determined by the following critical parameters:

Mandatory Matching Parameters:

• Diode Configuration: 1 Pair Common Cathode
• Technology: Schottky
• Mounting Type: Through Hole
• Package / Case: TO-220-3
• Current - Average Rectified (Io) (per Diode): 15 A

Allowable Variation Parameters:

• Voltage - DC Reverse (Vr) (Max): Equal to or greater than 50 V
• Voltage - Forward (Vf) (Max) @ If: Lower values are acceptable
• Current - Reverse Leakage @ Vr: Lower values are acceptable
• Operating Temperature - Junction: Range must encompass or exceed -55°C ~ 150°C
• RoHS Status: ROHS3 Compliant required

Substitute parts identified for the MBR1550CT C0G are MBR2545CTG and MBR2550CT. Both parts satisfy the mandatory matching parameters and operate within allowable electrical variations.

Parameter Comparison

Engineering Selection Recommendations

MBR2545CTG (onsemi) is suitable as a substitute when the application operates at or below 45 V DC reverse voltage. This part offers improved forward voltage characteristics (620 mV @ 15 A versus 750 mV @ 7.5 A) and lower reverse leakage current (200 µA @ 45 V). The extended operating temperature range (-65°C ~ 175°C) provides additional thermal margin. Product status is Active with ROHS3 compliance and REACH Unaffected designation. Inventory availability is 15,312 pieces.

MBR2550CT (Diodes Incorporated) maintains identical voltage and current ratings to the main part (50 V, 15 A) with matching forward voltage specification (750 mV @ 15 A). However, this part carries Obsolete product status and REACH Affected designation, limiting its suitability for new designs or long-term supply chain planning. Reverse leakage current is elevated at 1 mA @ 50 V. Inventory availability is 3,150 pieces.

For applications requiring 50 V DC reverse voltage rating with Active product status and full compliance, the MBR1550CT C0G remains the primary selection. The MBR2545CTG is recommended for designs operating at 45 V or lower where the improved electrical characteristics and extended temperature range provide system benefits.

Frequently Asked Questions (FAQ)

Q: Can MBR2545CTG replace MBR1550CT C0G in all applications?

A: MBR2545CTG is suitable only for applications where the DC reverse voltage requirement does not exceed 45 V. The MBR1550CT C0G is rated for 50 V maximum reverse voltage. If the circuit design requires 50 V operation, MBR2545CTG is not appropriate.

Q: What is the significance of the different forward voltage specifications between these parts?

A: The MBR1550CT C0G specifies 750 mV @ 7.5 A, while MBR2545CTG specifies 620 mV @ 15 A. These measurements are taken at different current levels. The lower forward voltage of MBR2545CTG at higher current indicates superior thermal performance characteristics at full rated current.

Q: Why is MBR2550CT listed as Obsolete?

A: MBR2550CT carries Obsolete product status, indicating it is no longer in active production. This designation affects long-term availability and supply chain reliability. New designs should not incorporate obsolete components.

Q: Are all three parts electrically interchangeable in the same circuit board layout?

A: All three parts share identical mechanical specifications: Through Hole mounting, TO-220-3 package, and 1 Pair Common Cathode configuration. Physical board layout compatibility is confirmed. Electrical interchangeability depends on the circuit's voltage and current requirements.

Q: What is the difference between REACH Unaffected and REACH Affected status?

A: REACH Affected status indicates the component contains substances of concern under REACH regulations, requiring additional compliance documentation. REACH Unaffected status indicates no such substances are present. For applications subject to REACH compliance requirements, MBR2545CTG is the appropriate selection.

Q: Does the extended temperature range of MBR2545CTG (-65°C ~ 175°C) provide a direct advantage over MBR1550CT C0G (-55°C ~ 150°C)?

A: The extended range provides additional operational margin in extreme temperature environments. However, selection should be based on the actual circuit operating temperature requirements. If the application operates within -55°C ~ 150°C, both parts are suitable from a thermal perspective.