MBR1035 Equivalent & Substitute Parts

Part Overview

The MBR1035 is a Schottky rectifier diode manufactured by onsemi, rated for 35 V DC reverse voltage and 10 A average rectified current in a Through Hole TO-220-2 package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The MBR1035 belongs to the SWITCHMODE™ series and is designed for fast recovery applications with switching speeds of 500 ns or less at currents exceeding 200 mA.

Substiute Parts

MBR1035

onsemiIn Stock: 1169MBR1035 Datasheet

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DSS10-0045B

IXYSIn Stock: 1060DSS10-0045B Datasheet

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STPS1045D

STMicroelectronicsIn Stock: 55269STPS1045D Datasheet

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VS-MBR1035-M3

Vishay General Semiconductor - Diodes DivisionIn Stock: 995VS-MBR1035-M3 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the MBR1035 is determined by the following critical parameters: Schottky technology classification, Through Hole mounting type, TO-220-2 package compatibility, 10 A average rectified current rating, fast recovery speed characteristic (≤ 500 ns at > 200 mA), and reverse voltage rating.

Substitute parts are grouped into two categories based on reverse voltage rating:

Category 1: Direct Voltage Match (35 V Rating) Parts maintaining the 35 V DC reverse voltage specification of the original MBR1035, ensuring direct electrical compatibility in applications with this voltage constraint.

Category 2: Higher Voltage Rating (45 V Rating) Parts rated for 45 V DC reverse voltage, which exceed the original specification and are suitable for applications where the circuit design permits higher voltage-rated components without performance degradation.

All substitute parts maintain the 10 A current rating, fast recovery speed characteristic, Through Hole mounting configuration, and TO-220-2 package footprint required for mechanical and electrical compatibility.

Parameter Comparison

Engineering Selection Recommendations

VS-MBR1035-M3 (Vishay General Semiconductor - Diodes Division)

The VS-MBR1035-M3 provides direct electrical equivalence to the MBR1035, maintaining identical 35 V reverse voltage and 10 A current ratings with matching forward voltage characteristics. This part is classified as Active product status, ensuring long-term availability and supply chain continuity. The VS-MBR1035-M3 is ROHS3 compliant, addressing regulatory requirements that the original obsolete MBR1035 does not meet. Operating temperature range extends to 150 °C maximum junction temperature, which is 25 °C lower than the MBR1035 specification. This part is suitable for direct replacement in applications where the original design parameters are maintained and regulatory compliance is required.

DSS10-0045B (IXYS)

The DSS10-0045B is rated for 45 V DC reverse voltage, exceeding the MBR1035 specification by 10 V. This higher voltage rating provides design margin in applications where reverse voltage stress may approach the 35 V limit. The DSS10-0045B exhibits superior forward voltage characteristics at 510 mV @ 10 A, compared to 840 mV @ 20 A for the MBR1035, resulting in lower power dissipation during forward conduction. Reverse leakage current is significantly lower at 5 mA @ 45 V. The part is ROHS3 compliant and Active status. Operating temperature range is -55 to 150 °C. This part is suitable for applications where higher voltage margin and improved efficiency are beneficial.

STPS1045D (STMicroelectronics)

The STPS1045D is rated for 45 V DC reverse voltage with 10 A current capacity, providing voltage margin above the original MBR1035 specification. Forward voltage is 600 mV @ 10 A, representing a moderate improvement over the MBR1035. Reverse leakage current matches the MBR1035 at 100 µA @ 45 V. The STPS1045D is ROHS3 compliant and Active status with maximum junction temperature of 175 °C, matching the MBR1035 upper temperature limit. This part is suitable for applications requiring higher voltage rating with maintained temperature performance and regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can the VS-MBR1035-M3 be used as a direct replacement for the MBR1035?

A: Yes. The VS-MBR1035-M3 maintains identical electrical specifications for reverse voltage (35 V), average rectified current (10 A), forward voltage (840 mV @ 20 A), and fast recovery speed characteristics. Both parts use TO-220-2 Through Hole packaging. The primary differences are product status (Active vs. Obsolete) and RoHS compliance (ROHS3 vs. non-compliant). Operating temperature maximum is 150 °C for the VS-MBR1035-M3 versus 175 °C for the MBR1035.

Q: What is the difference between the 35 V and 45 V rated substitute parts?

A: The VS-MBR1035-M3 maintains the original 35 V reverse voltage rating. The DSS10-0045B and STPS1045D are rated for 45 V reverse voltage, providing 10 V additional voltage margin. In applications where the circuit design permits higher voltage-rated components, the 45 V parts offer design margin without performance degradation. All parts maintain 10 A current rating and fast recovery characteristics.

Q: Are all substitute parts compatible with the MBR1035 PCB footprint?

A: Yes. All substitute parts use TO-220-2 Through Hole packaging with identical mechanical dimensions and pin configuration. Direct PCB mounting compatibility is maintained across all listed substitutes.

Q: What are the forward voltage differences among the substitute parts?

A: The MBR1035 and VS-MBR1035-M3 both specify 840 mV @ 20 A forward voltage. The DSS10-0045B specifies 510 mV @ 10 A, and the STPS1045D specifies 600 mV @ 10 A. Forward voltage is measured at different current levels, so direct comparison requires normalization to the same test current. Lower forward voltage reduces power dissipation during forward conduction.

Q: Which substitute part has the best reverse leakage characteristics?

A: The DSS10-0045B exhibits the lowest reverse leakage current at 5 mA @ 45 V. The MBR1035, VS-MBR1035-M3, and STPS1045D all specify 100 µA @ their respective reverse voltage ratings. Lower reverse leakage reduces standby power consumption and improves circuit efficiency.

Q: Are all substitute parts RoHS compliant?

A: The VS-MBR1035-M3, DSS10-0045B, and STPS1045D are all ROHS3 compliant. The original MBR1035 is RoHS non-compliant. RoHS compliance is required for applications subject to regulatory restrictions on hazardous substances.

Q: What is the operating temperature range for each part?

A: The MBR1035 operates from -65 to 175 °C junction temperature. The VS-MBR1035-M3 operates from -65 to 150 °C. The DSS10-0045B operates from -55 to 150 °C. The STPS1045D specifies a maximum junction temperature of 175 °C. Applications requiring full -65 °C lower temperature operation should use the MBR1035 or VS-MBR1035-M3.

Q: What is the product status of each substitute part?

A: The MBR1035 is classified as Obsolete. The VS-MBR1035-M3, DSS10-0045B, and STPS1045D are all classified as Active, ensuring continued availability and supply chain support.