MB84-BP Bridge Rectifier Single Phase 400V 8A Equivalent & Substitute Parts

Part Overview

The MB84-BP is a single-phase bridge rectifier manufactured by Micro Commercial Co, rated for 400V peak reverse voltage and 8A 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 format and electrical ratings define the scope for equivalent component selection.

Substiute Parts

MB84-BP

Micro Commercial CoIn Stock: 1096MB84-BP Datasheet

Current PartRFQ

MB88-BP

Micro Commercial CoIn Stock: 828MB88-BP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MB84-BP are identified based on the following criteria:

• Package Compatibility: BR-6 through-hole package format (4-Square configuration)
• Diode Type & Technology: Single-phase standard bridge rectifier topology
• Current Rating: 8A average rectified current (matching specification)
• Voltage Rating: Peak reverse voltage equal to or exceeding 400V
• Forward Voltage Characteristics: Vf (Max) @ If within acceptable operating parameters
• Temperature Range: Operating temperature capability of -55°C ~ 125°C (TJ)
• Compliance: ROHS3 compliant, REACH unaffected status

The MB88-BP qualifies as a substitute based on these parameters. While it features an elevated 800V peak reverse voltage rating, this represents a higher voltage capability within the same package and current class, maintaining full backward compatibility with 400V circuit applications.

Parameter Comparison

Engineering Selection Recommendations

The MB88-BP is suitable for direct substitution in applications currently specified for the MB84-BP. The substitute part maintains identical current handling (8A), forward voltage characteristics (1.1V @ 4A), and thermal operating range (-55°C ~ 125°C). The increased peak reverse voltage rating (800V vs. 400V) provides enhanced overvoltage margin without degrading performance in 400V-rated circuits.

The MB88-BP carries active product status with ROHS3 compliance and REACH unaffected designation, ensuring long-term availability and regulatory alignment. Both parts share identical moisture sensitivity level (MSL 1 - Unlimited) and through-hole BR-6 package configuration, eliminating PCB layout or assembly process modifications.

Frequently Asked Questions (FAQ)

Q: Can the MB88-BP replace the MB84-BP in a 400V circuit application?

A: Yes. The MB88-BP is rated for 800V peak reverse voltage, which exceeds the 400V requirement. The substitute part operates within the same current class (8A), maintains identical forward voltage characteristics, and shares the BR-6 package format. No circuit modifications are required.

Q: Are there physical or mechanical differences between these parts?

A: No. Both the MB84-BP and MB88-BP use the 4-Square BR-6 through-hole package configuration. Footprint, lead spacing, and mounting requirements are identical.

Q: What is the significance of the higher voltage rating on the MB88-BP?

A: The 800V peak reverse voltage rating on the MB88-BP provides additional safety margin in applications designed for 400V operation. This does not affect forward conduction characteristics or current handling capacity. The higher rating is a design advantage for overvoltage protection.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both the MB84-BP and MB88-BP are ROHS3 compliant and REACH unaffected. The MB88-BP, as an active product, ensures ongoing compliance and availability.

Q: What is the difference in product status between these parts?

A: The MB84-BP is classified as obsolete, while the MB88-BP is active. Active status indicates current manufacturing and long-term procurement availability, making the MB88-BP the preferred choice for new designs and ongoing production.