MBR1035-E3/45 Equivalent & Substitute Parts

Part Overview

The MBR1035-E3/45 is a Schottky rectifier diode rated for 35 V DC reverse voltage and 10 A average rectified current in a Through Hole TO-220AC package. Manufactured by Vishay General Semiconductor - Diodes Division, this component is classified as Obsolete. Due to its obsolete status, equivalent and substitute parts are necessary for ongoing design support, production continuity, and component sourcing.

Substiute Parts

MBR1035-E3/45

Vishay General Semiconductor - Diodes DivisionIn Stock: 790MBR1035-E3/45 Datasheet

Current PartRFQ

MBR1045-E3/45

Vishay General Semiconductor - Diodes DivisionIn Stock: 2455MBR1045-E3/45 Datasheet

MFR RecommendedRFQ

VS-MBR1035-M3

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

Parametric EquivalentRFQ

STPS1045D

STMicroelectronicsIn Stock: 55269STPS1045D Datasheet

DirectRFQ

MBR735G

onsemiIn Stock: 7039MBR735G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MBR1035-E3/45 is determined by the following critical parameters:

Mandatory Compatibility Parameters:

• Technology: Schottky rectifier diode
• Mounting Type: Through Hole
• Package / Case: TO-220-2 or TO-220AC
• Current - Average Rectified (Io): 10 A (minimum requirement)
• Voltage - DC Reverse (Vr) (Max): 35 V (minimum requirement)
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Substitution Categories:

1. Parametric Equivalent - Identical electrical specifications and package configuration
2. MFR Recommended Substitute - Higher voltage rating with same current rating and package
3. Direct Manufacturer Substitute - Alternative manufacturer with equivalent or superior specifications

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: VS-MBR1035-M3

The VS-MBR1035-M3 is the parametric equivalent to the MBR1035-E3/45. This part maintains identical electrical specifications including 35 V reverse voltage, 10 A current rating, and 840 mV forward voltage at 20 A. The VS-MBR1035-M3 is Active status, ensuring long-term availability and supply chain continuity. Both parts are ROHS3 Compliant and share identical thermal operating ranges. This substitute provides direct functional replacement without circuit redesign.

Secondary Substitute: MBR1045-E3/45

The MBR1045-E3/45 is a Vishay manufacturer-recommended substitute with elevated voltage rating (45 V vs. 35 V) while maintaining 10 A current capacity. This part is Active status with superior forward voltage characteristics (570 mV @ 10 A vs. 840 mV @ 20 A). The higher voltage rating provides additional design margin in applications where reverse voltage stress may approach the 35 V limit. ROHS3 Compliant and thermally equivalent.

Tertiary Substitute: STPS1045D

The STPS1045D is a STMicroelectronics direct manufacturer alternative with 45 V reverse voltage and 10 A current rating. This part is Active status with improved forward voltage performance (600 mV @ 10 A). The STPS1045D offers higher maximum junction temperature capability (175°C) compared to the original part (150°C). ROHS3 Compliant. Selection of this part introduces a secondary source manufacturer into the supply chain.

Not Recommended: MBR735G

The MBR735G is classified as Obsolete and features reduced current capacity (7.5 A vs. 10 A). While voltage and package specifications are compatible, the lower current rating restricts its application scope. This part does not provide forward compatibility for designs requiring full 10 A operation.

Frequently Asked Questions (FAQ)

Q: Can VS-MBR1035-M3 be used as a direct replacement for MBR1035-E3/45?

A: Yes. The VS-MBR1035-M3 is a parametric equivalent with identical voltage, current, and thermal specifications. Both parts share the same TO-220-2 package configuration and Fast Recovery Schottky technology. No circuit modifications are required.

Q: What is the advantage of using MBR1045-E3/45 over VS-MBR1035-M3?

A: The MBR1045-E3/45 provides 45 V reverse voltage rating compared to 35 V, offering increased design margin in applications subject to voltage transients or overvoltage conditions. Forward voltage is also reduced (570 mV @ 10 A), resulting in lower power dissipation. Both are Active status parts from Vishay.

Q: Is STPS1045D compatible with the original MBR1035-E3/45 circuit?

A: Yes. The STPS1045D maintains the same TO-220-2 package, 10 A current rating, and Fast Recovery Schottky technology. The 45 V voltage rating and improved forward voltage characteristics (600 mV @ 10 A) are compatible with applications designed for the MBR1035-E3/45. The part introduces STMicroelectronics as an alternative manufacturer source.

Q: Why is MBR735G not recommended as a substitute?

A: The MBR735G has a reduced current rating of 7.5 A compared to the required 10 A specification. Additionally, it is classified as Obsolete, which does not address the supply continuity issue of the original part. This substitute is suitable only for applications with lower current requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (VS-MBR1035-M3, MBR1045-E3/45, and STPS1045D) are ROHS3 Compliant, matching the compliance status of the original MBR1035-E3/45.

Q: What is the thermal operating range difference between substitutes?

A: The MBR1035-E3/45, VS-MBR1035-M3, and MBR1045-E3/45 operate from -65°C to 150°C. The STPS1045D has a maximum junction temperature of 175°C, providing extended high-temperature capability. The MBR735G operates from -65°C to 175°C. For applications within -65°C to 150°C, all parts are thermally compatible.

Q: Can these parts be used interchangeably in existing PCB designs?

A: Yes. All substitute parts use the TO-220-2 Through Hole package configuration, enabling direct PCB footprint compatibility. No layout modifications are required for mechanical placement or thermal management considerations.