MB108-BP Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The MB108-BP is a single-phase bridge rectifier manufactured by Micro Commercial Co, rated for 800 V peak reverse voltage and 10 A average rectified current in a BR-6 through-hole package. This component is classified as obsolete, making identification of compatible substitute parts essential for ongoing design support and procurement continuity. The BR-6 package configuration and electrical ratings define the substitution parameters for this product category.

Substiute Parts

MB108-BP

Micro Commercial CoIn Stock: 911MB108-BP Datasheet

Current PartRFQ

MB88-BP

Micro Commercial CoIn Stock: 828MB88-BP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MB108-BP is determined by the following critical parameters:

Mandatory Matching Parameters:

• Diode Type: Single Phase
• Technology: Standard
• Voltage - Peak Reverse (Max): 800 V
• Mounting Type: Through Hole
• Package / Case: 4-Square, BR-6

Allowable Variation Parameters:

• Current - Average Rectified (Io): Equal to or greater than 10 A
• Voltage - Forward (Vf) (Max) @ If: Equal to or less than 1.1 V
• Current - Reverse Leakage @ Vr: Equal to or less than 10 µA @ 800 V
• Operating Temperature Range: Must encompass or match -55°C ~ 125°C (TJ)

The MB88-BP qualifies as a substitute part based on matching all mandatory parameters. However, the Current - Average Rectified (Io) rating of 8 A is lower than the original 10 A specification, which restricts its application to circuits requiring 8 A or less.

Parameter Comparison

Engineering Selection Recommendations

The MB88-BP is the identified substitute for the obsolete MB108-BP. Both components maintain ROHS3 compliance and identical moisture sensitivity ratings, ensuring regulatory and environmental consistency.

The primary distinction is the current rating: the MB88-BP is rated for 8 A average rectified current versus the MB108-BP's 10 A rating. This substitution is valid only for applications where the circuit current requirement does not exceed 8 A. For circuits requiring the full 10 A capacity of the original MB108-BP, the MB88-BP is not suitable.

The MB88-BP's active product status provides supply chain continuity compared to the obsolete MB108-BP, supporting long-term availability and procurement reliability.

Frequently Asked Questions (FAQ)

Q: Can the MB88-BP directly replace the MB108-BP in all applications?

A: No. The MB88-BP has a lower current rating (8 A vs. 10 A). It is suitable only for circuits designed for 8 A or less. Applications requiring the full 10 A capacity must use an alternative part with matching 10 A specifications.

Q: Are the package dimensions identical between MB108-BP and MB88-BP?

A: Yes. Both components use the 4-Square, BR-6 through-hole package, ensuring mechanical and electrical compatibility at the board level.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the MB108-BP and MB88-BP are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity ratings, maintaining identical regulatory and environmental compliance.

Q: Why is the MB108-BP listed as obsolete?

A: The MB108-BP is classified as obsolete by the manufacturer. The MB88-BP, with active product status, represents the current alternative for ongoing procurement and design support.

Q: What is the voltage rating compatibility between these parts?

A: Both parts are rated for 800 V peak reverse voltage with identical forward voltage characteristics (1.1 V maximum) and reverse leakage specifications (10 µA @ 800 V), ensuring equivalent voltage performance within their respective current ratings.