MBR2545CTH Equivalent & Substitute Parts

Part Overview

The MBR2545CTH is a Schottky diode array in a 1 Pair Common Cathode configuration manufactured by onsemi. This component is rated for 45 V DC reverse voltage with 15 A average rectified current per diode and features fast recovery characteristics suitable for switching applications. The MBR2545CTH is classified as obsolete, necessitating identification of equivalent substitute components for ongoing design requirements and procurement needs.

Substiute Parts

MBR2545CTH

onsemiIn Stock: 946MBR2545CTH Datasheet

Current PartRFQ

MBR2545CTG

onsemiIn Stock: 15334MBR2545CTG Datasheet

DirectRFQ

MBR2545CT-E3/45

Vishay General Semiconductor - Diodes DivisionIn Stock: 2482MBR2545CT-E3/45 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MBR2545CTH is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Diode configuration must be 1 Pair Common Cathode
• Technology must be Schottky
• Voltage - DC Reverse (Vr) (Max) must be 45 V
• Current - Average Rectified (Io) (per Diode) must be 15 A
• Speed must be Fast Recovery ≤ 500ns, > 200mA (Io)
• Current - Reverse Leakage @ Vr must be 200 µA @ 45 V

Mechanical Equivalence Criteria:

• Mounting Type must be Through Hole
• Package / Case must be TO-220-3

Compliance Criteria:

• RoHS Status must be ROHS3 Compliant
• REACH Status must be REACH Unaffected

Substitute parts identified below meet all electrical and mechanical parameters. Variations in forward voltage characteristics and maximum operating temperature are noted where they differ from the main part specification.

Parameter Comparison

Engineering Selection Recommendations

MBR2545CTG (onsemi) is the primary substitute for the obsolete MBR2545CTH. Both components are manufactured by onsemi and share identical electrical and thermal specifications. The MBR2545CTG is currently in active production status with higher inventory availability (15,312 pcs) compared to the main part. This substitute provides direct functional equivalence with no parameter deviations.

MBR2545CT-E3/45 (Vishay General Semiconductor - Diodes Division) is a secondary substitute option. This component maintains electrical equivalence across all critical parameters including reverse voltage, current rating, and leakage characteristics. The forward voltage specification differs (820 mV @ 30 A versus 620 mV @ 15 A), and the maximum operating temperature is reduced to 150°C compared to 175°C. The MBR2545CT-E3/45 is actively produced with 2,372 pcs in stock. Selection of this substitute requires verification that the reduced maximum junction temperature and different forward voltage measurement conditions are compatible with the application thermal and electrical requirements.

Both substitutes are ROHS3 compliant and REACH unaffected, meeting regulatory compliance requirements equivalent to the main part.

Frequently Asked Questions (FAQ)

Q: Can the MBR2545CTG directly replace the MBR2545CTH without circuit modifications?

A: Yes. The MBR2545CTG is electrically and mechanically identical to the MBR2545CTH across all specified parameters. Both components feature the same 45 V reverse voltage rating, 15 A current rating, forward voltage characteristics, and TO-220-3 package configuration. Direct substitution is supported.

Q: What are the differences between the MBR2545CTG and MBR2545CT-E3/45?

A: Both components meet the core electrical requirements of 45 V reverse voltage, 15 A current rating, and Schottky technology. The MBR2545CT-E3/45 differs in forward voltage measurement conditions (820 mV @ 30 A versus 620 mV @ 15 A) and maximum operating junction temperature (150°C versus 175°C). The MBR2545CTG is manufactured by onsemi, while the MBR2545CT-E3/45 is manufactured by Vishay.

Q: Is the MBR2545CT-E3/45 suitable for applications requiring the full -65°C to 175°C temperature range?

A: The MBR2545CT-E3/45 is rated for -65°C to 150°C operation. Applications requiring operation above 150°C junction temperature are not supported by this substitute. The MBR2545CTG maintains the full -65°C to 175°C range of the original MBR2545CTH.

Q: Are both substitute parts available in the same packaging format as the MBR2545CTH?

A: Yes. Both the MBR2545CTG and MBR2545CT-E3/45 are supplied in TO-220-3 through-hole packages, matching the mechanical requirements of the MBR2545CTH. The MBR2545CTG is supplied in tube packaging, while the MBR2545CT-E3/45 is also supplied in tube packaging.

Q: Do the substitute parts meet the same regulatory compliance standards?

A: Yes. Both the MBR2545CTG and MBR2545CT-E3/45 are ROHS3 compliant and REACH unaffected, matching the compliance status of the MBR2545CTH.

Q: What is the primary reason for substituting the MBR2545CTH?

A: The MBR2545CTH is classified as obsolete. The MBR2545CTG and MBR2545CT-E3/45 are active production components with established supply chains and inventory availability, ensuring long-term component availability for new designs and ongoing production requirements.