MB151 Bridge Rectifier Single Phase 100V 15A Equivalent & Substitute Parts

Part Overview

The MB151 is a single-phase bridge rectifier manufactured by Diodes Incorporated, rated for 100V peak reverse voltage and 15A average rectified current. This component is classified as Obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and new procurement strategies. The MB151 features QC terminal mounting and operates across the industrial temperature range of -55°C to 150°C.

Substiute Parts

MB151

Diodes IncorporatedIn Stock: 1086MB151 Datasheet

Current PartRFQ

GBPC1501

onsemiIn Stock: 1801GBPC1501 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MB151 is determined by strict equivalence across the following electrical and mechanical parameters:

• Voltage - Peak Reverse (Max): 100 V minimum
• Current - Average Rectified (Io): 15 A minimum
• Diode Type: Single Phase
• Technology: Standard
• Mounting Type: QC Terminal
• Operating Temperature Range: -55°C ~ 150°C or wider

The GBPC1501 manufactured by onsemi meets all substitution criteria. Both components share identical peak reverse voltage (100 V), average rectified current (15 A), forward voltage characteristics (1.1 V @ 7.5 A), operating temperature range (-55°C ~ 150°C), and QC terminal mounting. The GBPC1501 is classified as Not For New Designs but remains functionally compatible for replacement applications.

Parameter Comparison

Engineering Selection Recommendations

The GBPC1501 is the direct functional equivalent for MB151 replacement. Both components are ROHS3 compliant and share identical electrical ratings across all critical parameters. The GBPC1501 demonstrates superior reverse leakage characteristics (5 µA versus 10 µA at 100 V), representing an improvement in leakage performance. Both components operate within the same temperature envelope and utilize compatible QC terminal mounting.

Selection between MB151 and GBPC1501 should be based on availability and supply chain considerations, as the MB151 is Obsolete while the GBPC1501 is classified as Not For New Designs. For applications requiring active component support, alternative bridge rectifier families with current production status may warrant evaluation.

Frequently Asked Questions (FAQ)

Q: Can GBPC1501 directly replace MB151 in existing circuits?

A: Yes. The GBPC1501 meets all electrical and mechanical substitution criteria. Both components share identical peak reverse voltage (100 V), average rectified current (15 A), forward voltage (1.1 V @ 7.5 A), and operating temperature range (-55°C ~ 150°C). QC terminal mounting is compatible between both packages.

Q: What is the difference in reverse leakage between MB151 and GBPC1501?

A: The GBPC1501 exhibits lower reverse leakage at 5 µA compared to the MB151 at 10 µA, both measured at 100 V. This represents improved leakage performance and does not affect substitution compatibility.

Q: Are there packaging considerations when substituting MB151 with GBPC1501?

A: Both components use 4-Square package geometry with QC terminal mounting. While the package designations differ (MB versus GBPC), the physical form factor and terminal configuration are compatible for standard PCB layouts and thermal management applications.

Q: What is the significance of the Obsolete and Not For New Designs product statuses?

A: MB151 is classified as Obsolete, indicating discontinued production and limited availability. GBPC1501 is classified as Not For New Designs, indicating limited ongoing support but continued availability. For long-term supply assurance, evaluation of current-production bridge rectifier alternatives may be appropriate.

Q: Are both components RoHS compliant?

A: Yes. Both MB151 and GBPC1501 are ROHS3 compliant, meeting environmental and regulatory requirements for electronic component manufacturing and use.