MBRB2035CT Equivalent & Substitute Parts

Part Overview

The MBRB2035CT is a Schottky diode array manufactured by Vishay General Semiconductor - Diodes Division. This component features a 1 Pair Common Cathode configuration rated for 35 V DC reverse voltage and 10 A average rectified current per diode in a Surface Mount TO-263-3 (D2PAK) package. The product is currently classified as Obsolete, necessitating identification of functionally equivalent alternatives for ongoing design requirements and production continuity.

Substiute Parts

MBRB2035CT

Vishay General Semiconductor - Diodes DivisionIn Stock: 916MBRB2035CT Datasheet

Current PartRFQ

STPS2045CG-TR

STMicroelectronicsIn Stock: 20185STPS2045CG-TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MBRB2035CT is determined by strict electrical and mechanical compatibility criteria. The substitute part must satisfy the following requirements:

Mandatory Compatibility Parameters:

• Diode Configuration: 1 Pair Common Cathode
• Technology: Schottky
• Mounting Type: Surface Mount
• Package / Case: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
• Current - Average Rectified (Io) (per Diode): 10 A (minimum)
• Voltage - Forward (Vf) (Max) @ If: 570 mV @ 10 A (maximum)
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Allowable Parameter Variations:

• Voltage - DC Reverse (Vr) (Max): Equal to or greater than 35 V
• Current - Reverse Leakage @ Vr: Equal to or less than 100 µA at the rated reverse voltage
• Operating Temperature - Junction (Max): Equal to or greater than 150°C

The STPS2045CG-TR meets all mandatory compatibility criteria and exceeds the allowable parameter variations, providing enhanced voltage rating and thermal performance.

Parameter Comparison

Engineering Selection Recommendations

The STPS2045CG-TR is a direct functional substitute for the MBRB2035CT based on the following engineering criteria:

Electrical Compatibility: The STPS2045CG-TR maintains identical forward voltage characteristics (570 mV @ 10 A) and current ratings (10 A per diode) while providing a higher reverse voltage rating (45 V versus 35 V). This enhanced voltage rating ensures operation within design margins for applications originally specified for the MBRB2035CT.

Thermal Performance: The STPS2045CG-TR supports a maximum junction temperature of 175°C, exceeding the MBRB2035CT specification of 150°C. This improvement provides additional thermal headroom in high-temperature operating environments.

Package Compatibility: Both components utilize identical Surface Mount TO-263-3 (D2PAK) packaging with 2 Leads + Tab configuration, ensuring direct PCB layout compatibility without redesign.

Regulatory Compliance: The STPS2045CG-TR is ROHS3 Compliant, addressing regulatory requirements that may not be satisfied by the RoHS non-compliant MBRB2035CT.

Product Availability: The STPS2045CG-TR maintains Active product status with substantial inventory availability (20,100 pieces), ensuring long-term supply continuity compared to the Obsolete MBRB2035CT.

Frequently Asked Questions (FAQ)

Q: Can the STPS2045CG-TR be used as a direct replacement for the MBRB2035CT without PCB modifications?

A: Yes. Both components share identical Surface Mount TO-263-3 (D2PAK) packaging with 2 Leads + Tab configuration. Pin-to-pin compatibility and footprint alignment are identical, eliminating the requirement for PCB layout changes.

Q: What is the significance of the higher 45 V reverse voltage rating on the STPS2045CG-TR?

A: The STPS2045CG-TR's 45 V rating exceeds the MBRB2035CT's 35 V specification. This higher rating provides additional voltage margin and is compatible with applications designed for 35 V operation. The component will not be overstressed in circuits originally specified for the lower-rated part.

Q: Are the forward voltage characteristics identical between these two diodes?

A: Yes. Both the MBRB2035CT and STPS2045CG-TR specify 570 mV maximum forward voltage at 10 A. This identical specification ensures equivalent circuit performance and power dissipation characteristics.

Q: Does the STPS2045CG-TR meet RoHS compliance requirements?

A: Yes. The STPS2045CG-TR is ROHS3 Compliant, whereas the MBRB2035CT is RoHS non-compliant. Applications requiring RoHS-compliant components must use the STPS2045CG-TR.

Q: What is the difference in reverse leakage current between these components?

A: The MBRB2035CT specifies 100 µA reverse leakage at 35 V, while the STPS2045CG-TR specifies 100 µA reverse leakage at 45 V. The leakage specification is measured at each component's respective rated voltage. Both components exhibit equivalent leakage characteristics within their operating ranges.

Q: Is the STPS2045CG-TR suitable for high-temperature applications?

A: Yes. The STPS2045CG-TR supports a maximum junction temperature of 175°C, compared to the MBRB2035CT's 150°C maximum. This 25°C improvement provides enhanced thermal performance for elevated-temperature operating environments.

Q: What is the current availability status of the STPS2045CG-TR?

A: The STPS2045CG-TR is an Active product with 20,100 pieces in stock. The MBRB2035CT is Obsolete with limited remaining inventory. The STPS2045CG-TR ensures long-term supply continuity for new designs and production requirements.