MB151W-BP Bridge Rectifier Single Phase 100V 15A Equivalent & Substitute Parts

Part Overview

The MB151W-BP is a single-phase bridge rectifier manufactured by Micro Commercial Co, rated for 100V peak reverse voltage and 15A average rectified current in a through-hole 4-Square MB-35W package. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The MB151W-BP serves as a standard bridge rectification solution for AC-to-DC conversion in industrial and commercial power supply circuits.

Substiute Parts

MB151W-BP

Micro Commercial CoIn Stock: 764MB151W-BP Datasheet

Current PartRFQ

KBPC1501W-G

Comchip TechnologyIn Stock: 845KBPC1501W-G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MB151W-BP is determined by the following critical electrical and mechanical parameters:

• Voltage Rating: Peak reverse voltage must be 100V or greater
• Current Rating: Average rectified current must be 15A or greater
• Diode Configuration: Single-phase bridge rectifier topology
• Mounting Type: Through-hole package compatibility
• Package Form Factor: 4-Square configuration for PCB footprint compatibility
• Temperature Range: Operating temperature capability must encompass the application requirements
• Compliance: RoHS3 compliance and REACH unaffected status

The KBPC1501W-G manufactured by Comchip Technology meets all substitution criteria and is classified as an active product, providing long-term availability for replacement applications.

Parameter Comparison

Engineering Selection Recommendations

The KBPC1501W-G is a direct functional equivalent for the obsolete MB151W-BP. Both components share identical electrical ratings for voltage and current specifications, standard bridge rectifier topology, and through-hole mounting configuration. The KBPC1501W-G offers the following advantages:

• Active Product Status: Ensures continued availability and supply chain reliability
• Enhanced Temperature Range: Extended operating temperature to 150°C provides additional thermal margin
• Improved Leakage Characteristics: Lower reverse leakage current at higher voltage stress
• Regulatory Compliance: Full ROHS3 compliance and REACH unaffected status match the original component
• Package Compatibility: 4-Square through-hole form factor maintains PCB footprint compatibility

The KBPC1501W-G is suitable for direct substitution in applications previously using the MB151W-BP without circuit redesign.

Frequently Asked Questions (FAQ)

Q: Can the KBPC1501W-G replace the MB151W-BP in existing designs?

A: Yes. Both components share identical peak reverse voltage (100V), average rectified current (15A), diode type (single phase), and through-hole mounting configuration. The 4-Square package footprint is compatible between MB-35W and KBPC-W variants.

Q: What are the key differences between these parts?

A: The KBPC1501W-G has a lower forward voltage drop (1.1V vs 1.2V at 7.5A), lower reverse leakage current (5µA at 1000V vs 10µA at 100V), and an extended operating temperature range (-55°C to 150°C vs -55°C to 125°C). The MB151W-BP is obsolete while the KBPC1501W-G is an active product.

Q: Are there any package considerations for substitution?

A: Both parts use 4-Square through-hole packages. The MB-35W and KBPC-W designations refer to the same physical form factor. PCB footprints are compatible for direct replacement.

Q: Do both parts meet current regulatory requirements?

A: Yes. Both the MB151W-BP and KBPC1501W-G are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: Which part should be selected for new designs?

A: The KBPC1501W-G should be selected for new designs due to its active product status, ensuring long-term availability and supply chain continuity.