MB05M-BP Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The MB05M-BP is a single-phase bridge rectifier manufactured by Micro Commercial Co, rated for 50 V peak reverse voltage and 500 mA average rectified current. This component is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. The MB05M-BP features a 4-DIP through-hole package (0.200", 5.08mm) and operates across a temperature range of -55°C to 150°C.

Substiute Parts

MB05M-BP

Micro Commercial CoIn Stock: 747MB05M-BP Datasheet

Current PartRFQ

DF005M

Fairchild SemiconductorIn Stock: 2728DF005M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MB05M-BP is determined by the following critical parameters:

• Diode Type & Technology: Single-phase standard bridge rectifier configuration
• Voltage Rating: 50 V peak reverse voltage (minimum requirement)
• Current Rating: Minimum 500 mA average rectified current
• Mounting & Package: Through-hole configuration compatible with 4-DIP footprints
• Temperature Range: Operating capability within -55°C to 150°C
• Compliance: RoHS3 compliance maintained

The DF005M from Fairchild Semiconductor meets these substitution criteria. While it features a larger 4-EDIP package (0.300", 7.62mm) and higher current rating (1 A), it maintains electrical compatibility at the 50 V / 500 mA operating point and preserves through-hole mounting functionality.

Parameter Comparison

Engineering Selection Recommendations

The DF005M is a qualified substitute for the MB05M-BP based on the following factors:

• Electrical Compatibility: Both components share identical 50 V peak reverse voltage ratings. The DF005M's 1 A current rating exceeds the MB05M-BP's 500 mA requirement, providing operational margin without derating concerns.
• Product Status: The DF005M is active and widely available (2660 pcs in stock), whereas the MB05M-BP is obsolete with limited future availability.
• Temperature Performance: The DF005M extends the lower temperature limit to -65°C, providing enhanced cold-temperature capability.
• Through-Hole Mounting: Both components use through-hole technology, maintaining PCB assembly compatibility.
• Package Consideration: The DF005M uses a larger 4-EDIP package (0.300", 7.62mm) compared to the MB05M-BP's 4-DIP package (0.200", 5.08mm). PCB layout modification is required to accommodate the increased footprint.

Frequently Asked Questions (FAQ)

Q: Can the DF005M directly replace the MB05M-BP without PCB modifications?

A: Electrical substitution is valid; however, PCB layout modification is necessary. The DF005M's 4-EDIP package (0.300", 7.62mm) is larger than the MB05M-BP's 4-DIP package (0.200", 5.08mm). Pad spacing and hole diameter adjustments are required.

Q: Does the higher current rating of the DF005M (1 A vs 500 mA) affect circuit performance?

A: No. The DF005M's 1 A rating is a superset of the MB05M-BP's 500 mA requirement. The component operates safely at 500 mA with no performance degradation.

Q: Are there compliance differences between the two parts?

A: The MB05M-BP is explicitly ROHS3 compliant. The DF005M's RoHS status is not specified in the provided data. Compliance verification with the DF005M manufacturer is recommended for applications with specific regulatory requirements.

Q: What is the impact of the forward voltage difference (1 V vs 1.1 V)?

A: The voltage difference is measured at different current levels (400 mA vs 1 A). At the MB05M-BP's 500 mA operating point, the DF005M's forward voltage remains within acceptable rectifier performance parameters for standard applications.

Q: Is the extended temperature range of the DF005M (-65°C vs -55°C) significant?

A: The DF005M provides additional low-temperature margin. For applications operating at or above -55°C, both components are equivalent. For applications requiring operation below -55°C, the DF005M is the only qualified option.