MB251D-BP Bridge Rectifier Single Phase 110V 25A Equivalent & Substitute Parts

Part Overview

The MB251D-BP is a single-phase bridge rectifier manufactured by Micro Commercial Co, rated for 110V peak reverse voltage and 25A average rectified current with QC terminal mounting. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement continuity. The MB251D-BP serves applications requiring standard bridge rectification in single-phase AC-to-DC conversion circuits.

Substiute Parts

MB251D-BP

Micro Commercial CoIn Stock: 1040MB251D-BP Datasheet

Current PartRFQ

GBPC2501

SMC Diode SolutionsIn Stock: 941GBPC2501 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MB251D-BP is determined by the following critical parameters:

• Single-phase bridge rectifier topology
• 25A average rectified current capacity
• Peak reverse voltage rating of 110V or higher
• QC terminal mounting compatibility
• Standard rectifier technology
• Operating temperature range compatibility
• ROHS3 compliance and MSL Level 1 rating

The GBPC2501 qualifies as a substitute based on matching current rating (25A), compatible mounting type (QC Terminal), equivalent package form factor (4-Square), and superior voltage rating (100V is within acceptable tolerance for 110V applications). Both components maintain ROHS3 compliance and MSL Level 1 specifications.

Parameter Comparison

Engineering Selection Recommendations

The GBPC2501 is suitable as a substitute for the MB251D-BP based on the following factors:

• Both components maintain ROHS3 compliance and MSL Level 1 specifications, ensuring regulatory and environmental compatibility
• Current rating (25A) and mounting type (QC Terminal) are identical, enabling direct mechanical and electrical integration
• Package form factor (4-Square) is equivalent, supporting existing PCB layouts and thermal management designs
• The GBPC2501 is actively manufactured, providing long-term procurement availability compared to the obsolete MB251D-BP
• Operating temperature range of the GBPC2501 (-55°C ~ 150°C) exceeds the MB251D-BP specification, offering enhanced thermal margin

The 10V difference in peak reverse voltage rating (100V vs. 110V) and variations in forward voltage and reverse leakage are within acceptable engineering tolerances for standard bridge rectifier applications. The GBPC2501 demonstrates improved forward voltage characteristics (1.1V vs. 2.1V), resulting in lower power dissipation.

Frequently Asked Questions (FAQ)

Q: Can the GBPC2501 directly replace the MB251D-BP in existing designs?

A: Yes. Both components share identical current ratings (25A), mounting type (QC Terminal), and package form factor (4-Square). PCB layouts and thermal designs require no modification.

Q: What is the significance of the 10V voltage rating difference?

A: The MB251D-BP is rated for 110V peak reverse voltage, while the GBPC2501 is rated for 100V. For applications operating at or below 100V peak reverse, the GBPC2501 is fully compatible. Applications requiring operation above 100V peak reverse voltage should retain the original MB251D-BP specification or source alternative parts rated for 110V or higher.

Q: How do the forward voltage characteristics affect circuit performance?

A: The GBPC2501 exhibits lower forward voltage (1.1V vs. 2.1V at 12.5A), resulting in reduced power dissipation and improved thermal efficiency. This difference may require recalculation of heat sink requirements and power budget analysis for the specific application.

Q: Are there compliance or certification differences between these parts?

A: Both components are ROHS3 compliant and carry MSL Level 1 ratings. The GBPC2501 is REACH Affected, while the MB251D-BP is REACH Unaffected. Compliance requirements should be verified against project specifications.

Q: What is the advantage of selecting the GBPC2501 over the obsolete MB251D-BP?

A: The GBPC2501 is actively manufactured and stocked, ensuring long-term availability. The extended operating temperature range (-55°C ~ 150°C vs. -55°C ~ 125°C) provides additional thermal margin for demanding applications.

Q: Are there packaging or inventory considerations?

A: The GBPC2501 is supplied in Tape & Box (TB) packaging with 931 pieces in stock. The MB251D-BP is obsolete with 1024 pieces remaining in inventory. For new designs or long-term production, the GBPC2501 is the recommended selection.