MBR1535CT Equivalent & Substitute Parts

Part Overview

The MBR1535CT is a Schottky diode array in a 1 Pair Common Cathode configuration, rated for 35 V DC reverse voltage and 7.5 A average rectified current per diode. Manufactured by Vishay General Semiconductor - Diodes Division, this component is packaged in TO-220-3 through-hole format and is classified as obsolete. Due to its obsolete status, equivalent and substitute parts are necessary for ongoing design support, production continuity, and system maintenance. Substitute options include parametrically equivalent parts, upgraded variants with enhanced current ratings, and alternative manufacturer solutions that maintain functional compatibility within specified electrical parameters.

Substiute Parts

MBR1535CT

Vishay General Semiconductor - Diodes DivisionIn Stock: 9786MBR1535CT Datasheet

Current PartRFQ

VS-MBR1535CT-M3

Vishay General Semiconductor - Diodes DivisionIn Stock: 1146VS-MBR1535CT-M3 Datasheet

Parametric EquivalentRFQ

MBR1535CTG

onsemiIn Stock: 18865MBR1535CTG Datasheet

UpgradeRFQ

MBR2535CTG

onsemiIn Stock: 2049MBR2535CTG Datasheet

MFR RecommendedRFQ

MBR2535CTLG

onsemiIn Stock: 1827MBR2535CTLG Datasheet

MFR RecommendedRFQ

STPS1545CT

STMicroelectronicsIn Stock: 1235STPS1545CT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MBR1535CT is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Diode Configuration: 1 Pair Common Cathode (mandatory)
• Technology: Schottky (mandatory)
• Voltage - DC Reverse (Vr) (Max): 35 V minimum (equal or higher acceptable)
• Current - Average Rectified (Io) (per Diode): 7.5 A minimum (equal or higher acceptable)
• Mounting Type: Through Hole (mandatory)
• Package / Case: TO-220-3 (mandatory)
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io) (mandatory)

Substitute Categories:

1. Parametrically Equivalent (Direct Replacement): Parts matching all electrical parameters and packaging specifications with identical or improved performance characteristics.

2. Upgrade Variants (Higher Current Rating): Parts maintaining voltage and configuration specifications while providing increased current capacity for applications requiring higher current handling.

3. Alternative Manufacturer Solutions: Parts from different manufacturers meeting identical electrical and mechanical specifications, providing supply chain flexibility.

Parameter Comparison

Engineering Selection Recommendations

VS-MBR1535CT-M3 (Vishay General Semiconductor - Diodes Division)

This part is a parametrically equivalent direct replacement for the MBR1535CT. It maintains identical electrical specifications across all critical parameters: 35 V reverse voltage, 7.5 A average rectified current, 840 mV forward voltage at 15 A, and fast recovery switching characteristics. The primary distinction is product status: VS-MBR1535CT-M3 is active, ensuring ongoing availability and supply chain continuity. Packaging is specified as Tube format. This substitute is suitable for applications requiring exact electrical performance matching without design modification.

MBR1535CTG (onsemi)

This part provides parametric equivalence to the MBR1535CT with identical electrical specifications. Manufactured by onsemi under the SWITCHMODE™ series, it maintains 35 V reverse voltage and 7.5 A current rating. The part is classified as obsolete; however, it offers ROHS3 compliance and extended operating temperature range (-65 to 175°C versus -65 to 150°C). This substitute is applicable for designs requiring regulatory compliance improvements over the original MBR1535CT.

MBR2535CTLG (onsemi)

This part represents an upgrade variant with increased current capacity (12.5 A versus 7.5 A) while maintaining 35 V reverse voltage specification. It is active in product status and ROHS3 compliant. Forward voltage is reduced to 470 mV at 12.5 A, indicating improved efficiency characteristics. This substitute is suitable for applications where current headroom is beneficial or where thermal performance improvements are required. Operating temperature range is -65 to 150°C, matching the original specification.

MBR2535CTG (onsemi)

This part provides the highest current capacity upgrade (30 A versus 7.5 A) while maintaining 35 V reverse voltage. It is active in product status and ROHS3 compliant with extended operating temperature range (-65 to 175°C). Forward voltage is 820 mV at 30 A. This substitute is applicable for high-current applications or designs requiring significant thermal margin. Reverse leakage increases to 200 µA at 35 V.

STPS1545CT (STMicroelectronics)

This part maintains 7.5 A current rating and TO-220-3 packaging while providing elevated reverse voltage rating (45 V versus 35 V). It is active in product status and ROHS3 compliant. Forward voltage is reduced to 570 mV at 7.5 A, indicating superior efficiency. Operating temperature maximum is 175°C. This substitute is suitable for applications requiring higher voltage margin or improved thermal performance without current capacity changes.

Frequently Asked Questions (FAQ)

Q: Can VS-MBR1535CT-M3 be used as a direct replacement for MBR1535CT?

A: Yes. VS-MBR1535CT-M3 is parametrically equivalent to MBR1535CT across all critical electrical specifications: 35 V reverse voltage, 7.5 A average rectified current, 840 mV forward voltage at 15 A, and fast recovery switching characteristics. Both use TO-220-3 through-hole packaging. The primary advantage is that VS-MBR1535CT-M3 is active in product status, ensuring supply availability.

Q: What is the difference between MBR1535CTG and MBR2535CTLG?

A: Both parts are manufactured by onsemi and maintain 35 V reverse voltage specification. MBR1535CTG provides 7.5 A current rating (equivalent to the original MBR1535CT), while MBR2535CTLG provides 12.5 A current rating. MBR2535CTLG also exhibits lower forward voltage (470 mV at 12.5 A) compared to MBR1535CTG (840 mV at 15 A). Both are active in product status and ROHS3 compliant.

Q: When should MBR2535CTG be selected over other substitutes?

A: MBR2535CTG should be selected when the application requires maximum current capacity (30 A) or when thermal performance is a critical design constraint. This part provides the highest current rating among all substitutes while maintaining 35 V reverse voltage specification. It is active in product status, ROHS3 compliant, and offers extended operating temperature range (-65 to 175°C).

Q: Is STPS1545CT compatible with circuits designed for MBR1535CT?

A: STPS1545CT is compatible with MBR1535CT-based circuits from an electrical standpoint. Both maintain 7.5 A current rating and TO-220-3 packaging. STPS1545CT provides higher reverse voltage rating (45 V versus 35 V) and lower forward voltage (570 mV at 7.5 A versus 840 mV at 15 A). The higher voltage rating provides additional design margin for overvoltage conditions. STPS1545CT is active in product status and ROHS3 compliant.

Q: What compliance advantages do the substitute parts offer?

A: MBR1535CT is RoHS non-compliant. All substitute parts (VS-MBR1535CT-M3, MBR1535CTG, MBR2535CTLG, MBR2535CTG, and STPS1545CT) are ROHS3 compliant, meeting current regulatory requirements for hazardous substance restrictions. This compliance is essential for applications subject to environmental and regulatory standards.

Q: Are all substitute parts available in the same packaging format?

A: All substitute parts use TO-220-3 through-hole packaging, maintaining mechanical compatibility with MBR1535CT. Packaging format variations exist only in supplier delivery method: MBR1535CT is unspecified, VS-MBR1535CT-M3 is supplied in Tube format, and all onsemi and STMicroelectronics parts are supplied in Tube format. PCB footprint and thermal characteristics remain identical across all substitutes.

Q: What is the impact of reverse leakage current differences among substitutes?

A: Reverse leakage current varies among substitutes: MBR1535CT, VS-MBR1535CT-M3, MBR1535CTG, and STPS1545CT all specify 100 µA at their respective reverse voltage ratings. MBR2535CTLG specifies 5 mA at 35 V, and MBR2535CTG specifies 200 µA at 35 V. Lower reverse leakage is generally preferable for low-power or precision applications. Higher leakage in MBR2535CTLG and MBR2535CTG is acceptable for high-current applications where leakage represents a negligible fraction of total current.

Q: Can MBR2535CTLG be used in applications originally designed for MBR1535CT?

A: Yes. MBR2535CTLG maintains 35 V reverse voltage and TO-220-3 packaging, providing parametric compatibility. The increased current rating (12.5 A versus 7.5 A) and reduced forward voltage (470 mV at 12.5 A) represent performance improvements. This substitute is suitable for applications where current headroom or thermal performance enhancement is beneficial. No circuit redesign is required.