MBR6045CT Equivalent & Substitute Parts

Part Overview

The MBR6045CT is a Schottky diode array manufactured by SMC Diode Solutions, configured as a 1 Pair Common Cathode device rated for 45 V DC reverse voltage. This through-hole component in TO-220-3 package is designed for fast recovery rectification applications with a maximum forward voltage of 650 mV at 30 A and reverse leakage current of 1 mA at 45 V. The part maintains an active product status with 1900 units currently in stock.

Substitute parts become necessary when the primary component reaches end-of-life status, inventory depletion occurs, or when design requirements permit operation within the electrical and mechanical parameters of alternative qualified devices. The MBR6045CT can be substituted with components that maintain compatible diode configuration, package type, and electrical specifications within defined operating ranges.

Substiute Parts

MBR6045CT

SMC Diode SolutionsIn Stock: 2005MBR6045CT Datasheet

Current PartRFQ

MBR2545CTG

onsemiIn Stock: 15334MBR2545CTG Datasheet

SimilarRFQ

MBR2550CT

Diodes IncorporatedIn Stock: 3201MBR2550CT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MBR6045CT is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Diode Configuration: 1 Pair Common Cathode (mandatory match)
• Technology: Schottky (mandatory match)
• Package / Case: TO-220-3 (mandatory match)
• Mounting Type: Through Hole (mandatory match)
• Voltage - DC Reverse (Vr) (Max): Equal to or greater than 45 V
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io) (mandatory match)

Secondary Compatibility Parameters:

• Voltage - Forward (Vf) (Max) @ If: Must not exceed application requirements
• Current - Reverse Leakage @ Vr: Must not exceed application requirements
• Operating Temperature - Junction: Must encompass or exceed -55°C ~ 150°C range
• RoHS Status: ROHS3 Compliant (mandatory match)

Substitute parts identified in this reference meet all primary criteria and maintain compatibility within the specified electrical operating envelope.

Parameter Comparison

Engineering Selection Recommendations

MBR2545CTG (onsemi)

The MBR2545CTG qualifies as a direct substitute for the MBR6045CT. Both devices share identical diode configuration, technology, voltage rating, package type, and fast recovery speed specifications. The MBR2545CTG maintains active product status with 15,312 units in stock. The device exhibits superior reverse leakage characteristics (200 µA versus 1 mA at rated voltage) and an extended operating temperature range (-65°C ~ 175°C). Forward voltage performance at 15 A (620 mV) is lower than the MBR6045CT specification at 30 A (650 mV), indicating favorable thermal characteristics. RoHS3 compliance is maintained. This substitute is suitable for applications where the MBR6045CT is unavailable.

MBR2550CT (Diodes Incorporated)

The MBR2550CT meets all primary substitution criteria with matching diode configuration, Schottky technology, TO-220-3 package, and fast recovery speed. The device is rated for 50 V DC reverse voltage, exceeding the MBR6045CT requirement of 45 V. However, the MBR2550CT carries an obsolete product status, indicating discontinued manufacturing and limited future availability. Current inventory stands at 3,150 units. Forward voltage at 15 A (750 mV) is higher than the MBR6045CT specification. RoHS3 compliance is maintained. Selection of this substitute should be limited to applications where inventory depletion of active alternatives is imminent and long-term supply is not a consideration.

Frequently Asked Questions (FAQ)

Q: Can the MBR2545CTG replace the MBR6045CT in all applications?

A: The MBR2545CTG meets all mandatory electrical and mechanical substitution criteria. Both devices are Schottky diode arrays with 1 Pair Common Cathode configuration, 45 V rating, TO-220-3 package, and fast recovery speed. The MBR2545CTG maintains active product status and superior reverse leakage performance. Substitution is valid for applications operating within the specified parameters.

Q: What is the difference between the MBR2545CTG and MBR2550CT?

A: The MBR2545CTG (onsemi) is rated for 45 V with active product status and 15,312 units in stock. The MBR2550CT (Diodes Incorporated) is rated for 50 V with obsolete product status and 3,150 units in stock. Both share identical diode configuration and package type. The MBR2545CTG is the preferred substitute due to active status and superior availability.

Q: Why is the MBR2550CT listed as obsolete?

A: Obsolete product status indicates the manufacturer has discontinued production. While the device remains electrically compatible with the MBR6045CT, future availability cannot be guaranteed. Current inventory is limited to 3,150 units. Active alternatives such as the MBR2545CTG are recommended for new designs and long-term applications.

Q: Are all substitute parts in the same TO-220-3 package?

A: Yes. The MBR6045CT, MBR2545CTG, and MBR2550CT are all housed in TO-220-3 through-hole packages. Pin configuration and mechanical dimensions are identical, permitting direct board-level substitution without layout modification.

Q: Do the substitute parts maintain RoHS3 compliance?

A: Yes. Both the MBR2545CTG and MBR2550CT are ROHS3 compliant, matching the compliance status of the MBR6045CT. All three devices meet current environmental and regulatory requirements.

Q: What is the significance of the reverse leakage current difference between parts?

A: The MBR2545CTG exhibits 200 µA reverse leakage at 45 V, compared to 1 mA for the MBR6045CT and MBR2550CT. Lower reverse leakage indicates reduced parasitic current flow in reverse bias conditions, resulting in improved efficiency and reduced thermal dissipation in applications with sustained reverse voltage exposure.

Q: Can the MBR6045CT operate at the extended temperature range of the MBR2545CTG?

A: The MBR6045CT is rated for -55°C ~ 150°C junction temperature. The MBR2545CTG extends this range to -65°C ~ 175°C. The MBR6045CT cannot operate at temperatures exceeding 150°C. If extended temperature operation is required, the MBR2545CTG is the appropriate selection.