MB104-BP Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The MB104-BP is a single-phase bridge rectifier manufactured by Micro Commercial Co, rated for 400 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 suitable substitute parts essential for ongoing design support and procurement continuity. The BR-6 package and electrical ratings define the scope for equivalent component selection.

Substiute Parts

MB104-BP

Micro Commercial CoIn Stock: 1012MB104-BP Datasheet

Current PartRFQ

MB88-BP

Micro Commercial CoIn Stock: 828MB88-BP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MB104-BP are identified based on the following critical parameters that determine functional compatibility:

Mandatory Compatibility Criteria:

• Diode Type: Single Phase bridge rectifier
• Mounting Type: Through Hole
• Package / Case: BR-6 (4-Square)
• Operating Temperature Range: -55°C ~ 125°C or wider
• RoHS Status: ROHS3 Compliant

Electrical Parameter Considerations:

• Voltage - Peak Reverse (Max): Must equal or exceed 400 V for direct substitution
• Current - Average Rectified (Io): Must equal or exceed 10 A for direct substitution
• Voltage - Forward (Vf): Comparable performance at rated current
• Current - Reverse Leakage: Acceptable performance at rated voltage

Parts meeting these criteria are classified as suitable substitutes. Parts with higher voltage or current ratings remain compatible within the same package and mounting configuration.

Parameter Comparison

Engineering Selection Recommendations

MB88-BP Substitution Assessment:

The MB88-BP is an active product from the same manufacturer in the identical BR-6 package with through-hole mounting. Both components maintain ROHS3 compliance and identical operating temperature ranges.

The MB88-BP provides higher peak reverse voltage (800 V versus 400 V), which is compatible with applications designed for the MB104-BP. However, the MB88-BP is rated for 8 A average rectified current compared to the MB104-BP's 10 A rating. This represents a current reduction of 2 A and must be evaluated against circuit requirements.

Selection of the MB88-BP is appropriate for applications where the 400 V minimum voltage requirement is met and the 8 A current rating is sufficient. The higher voltage rating provides additional design margin in high-voltage applications.

Frequently Asked Questions (FAQ)

Q: Can the MB88-BP directly replace the MB104-BP in all applications?

A: The MB88-BP is mechanically and electrically compatible in terms of package, mounting, and voltage rating. However, the current rating is reduced from 10 A to 8 A. Direct substitution is valid only if the circuit operates at or below 8 A average rectified current.

Q: What is the significance of the BR-6 package designation?

A: BR-6 is a standardized 4-square through-hole package for single-phase bridge rectifiers. Both the MB104-BP and MB88-BP use this identical package, ensuring mechanical and electrical pin compatibility.

Q: Why is the MB104-BP listed as obsolete?

A: Obsolete status indicates the part is no longer manufactured. The MB88-BP, with active product status, represents the current equivalent offering from Micro Commercial Co in the same package family.

Q: Are there any compliance differences between these parts?

A: Both parts maintain identical RoHS3 compliance, REACH unaffected status, and ECCN/HTSUS classifications. No compliance barriers exist for substitution.

Q: How do the forward voltage characteristics compare?

A: Both parts specify 1.1 V maximum forward voltage. The MB88-BP measurement is taken at 4 A, while the MB104-BP is measured at 5 A. Forward voltage performance is comparable across the rated current ranges.