MB3510W-BP Bridge Rectifier Single Phase 1 kV 35A Equivalent & Substitute Parts

Part Overview

The MB3510W-BP is a single-phase bridge rectifier rated for 1 kV peak reverse voltage and 35 A average rectified current, manufactured by Micro Commercial Co in a through-hole MB-35W package. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement continuity. The MB3510W-BP remains functionally viable for applications requiring standard bridge rectification at 1 kV and 35 A specifications, but active alternatives are available from other manufacturers.

Substiute Parts

MB3510W-BP

Micro Commercial CoIn Stock: 1252MB3510W-BP Datasheet

Current PartRFQ

KBPC35010T

GeneSiC SemiconductorIn Stock: 1015KBPC35010T Datasheet

SimilarRFQ

KBPC3510W-G

Comchip TechnologyIn Stock: 1416KBPC3510W-G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MB3510W-BP are qualified based on the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Voltage - Peak Reverse (Max): 1 kV
• Current - Average Rectified (Io): 35 A
• Diode Type: Single Phase
• Technology: Standard
• Operating Temperature Range: -55°C ~ 150°C (TJ)

Mechanical Compatibility Criteria:

• Package / Case: 4-Square configuration
• Mounting Type: Through Hole or QC Terminal (both are through-hole connection methods)

Compliance Criteria:

• RoHS Status: ROHS3 Compliant or RoHS Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The identified substitutes meet all electrical specifications and operate within the same temperature range. Mounting type variations (MB-35W through-hole versus KBPC-T QC terminal) represent different through-hole connection methods suitable for equivalent circuit applications.

Parameter Comparison

Engineering Selection Recommendations

KBPC3510W-G (Comchip Technology) is the primary substitute for direct replacement of the MB3510W-BP. Both components feature identical through-hole mounting in 4-Square packages, ROHS3 compliance, and equivalent electrical specifications. The KBPC3510W-G demonstrates lower forward voltage (1.1 V versus 1.2 V), resulting in reduced power dissipation. This part is currently in active production status with established supply availability.

KBPC35010T (GeneSiC Semiconductor) serves as an alternative substitute with QC terminal mounting instead of standard through-hole. This part is also in active production and offers the lowest reverse leakage current (5 µA versus 10 µA), which may be advantageous in applications sensitive to leakage. The QC terminal connection method requires PCB layout modification compared to the MB-35W through-hole configuration.

Both substitutes maintain full compliance with RoHS and MSL requirements equivalent to the original part. Selection between KBPC3510W-G and KBPC35010T depends on PCB mounting compatibility and thermal performance requirements.

Frequently Asked Questions (FAQ)

Q: Can KBPC3510W-G directly replace MB3510W-BP without PCB modification?

A: Yes. Both parts use through-hole mounting in 4-Square packages with identical electrical specifications and operating temperature ranges. No PCB layout changes are required.

Q: What is the difference between MB-35W and KBPC-W package designations?

A: Both designations refer to 4-Square through-hole bridge rectifier packages. MB-35W is the Micro Commercial Co package designation, while KBPC-W is the Comchip Technology equivalent. The physical dimensions and pin configurations are compatible for direct substitution.

Q: Why does KBPC35010T use QC Terminal mounting instead of through-hole?

A: QC Terminal is an alternative through-hole connection method that uses quick-connect terminals instead of traditional wire leads. This requires different PCB footprint design but maintains electrical equivalence.

Q: Are there thermal performance differences between the substitutes?

A: The KBPC3510W-G and KBPC35010T both operate within the same temperature range (-55°C ~ 150°C). The KBPC3510W-G exhibits lower forward voltage (1.1 V versus 1.2 V), resulting in approximately 8% lower power dissipation at rated current.

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

A: KBPC3510W-G and MB3510W-BP are both ROHS3 compliant. KBPC35010T is RoHS compliant. All three parts have MSL rating of 1 (Unlimited) and are suitable for equivalent applications.

Q: What is the significance of reverse leakage current differences?

A: The MB3510W-BP and KBPC3510W-G both specify 10 µA reverse leakage at 1000 V, while KBPC35010T specifies 5 µA. Lower leakage current reduces standby power consumption and may improve performance in precision rectification circuits.