MMB6G-HF Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The MMB6G-HF is a single-phase bridge rectifier manufactured by Comchip Technology, rated for 600 V peak reverse voltage and 800 mA average rectified current. This component is classified as obsolete, making identification of equivalent substitute parts essential for ongoing design support and procurement continuity. Bridge rectifiers in this voltage and current class are widely used in power supply circuits, battery charging systems, and AC-to-DC conversion applications where single-phase rectification is required.

Substiute Parts

MMB6G-HF

Comchip TechnologyIn Stock: 970MMB6G-HF Datasheet

Current PartRFQ

MB6F

MDDIn Stock: 125277MB6F Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MMB6G-HF is determined by strict equivalence across the following critical parameters:

• Voltage Rating: Peak reverse voltage must equal or exceed 600 V
• Current Rating: Average rectified current must support 800 mA minimum
• Forward Voltage Drop: Maximum forward voltage at rated current must not exceed 1.1 V @ 800 mA
• Reverse Leakage: Reverse leakage current characteristics at rated voltage
• Package Configuration: 4-SMD, Gull Wing surface mount package
• Temperature Range: Operating junction temperature range of -55°C to 150°C
• Diode Type & Technology: Single-phase standard bridge rectifier topology

The MB6F from MDD meets all these criteria and qualifies as a parametric equivalent substitute.

Parameter Comparison

Engineering Selection Recommendations

The MB6F from MDD is a direct parametric equivalent for the obsolete MMB6G-HF. Both components share identical electrical ratings for voltage, current, and forward voltage characteristics, with identical package and thermal specifications. The MB6F demonstrates superior reverse leakage performance (1 µA versus 5 µA at 600 V), which provides additional design margin in applications sensitive to leakage current.

The MB6F carries active product status with ROHS3 compliance and REACH unaffected designation, ensuring long-term availability and regulatory alignment. The MMB6G-HF's obsolete status necessitates transition to the MB6F for new designs and ongoing production support.

Frequently Asked Questions (FAQ)

Q: Can the MB6F directly replace the MMB6G-HF in existing designs?

A: Yes. The MB6F meets all electrical and mechanical parameters of the MMB6G-HF. Both components are rated for 600 V, 800 mA, with identical forward voltage characteristics, operating temperature range, and 4-SMD Gull Wing package configuration. No circuit modifications are required.

Q: What is the significance of the lower reverse leakage current in the MB6F?

A: The MB6F exhibits 1 µA reverse leakage at 600 V compared to 5 µA for the MMB6G-HF. This represents improved leakage performance and provides additional design margin in applications where leakage current affects circuit performance or power consumption.

Q: Are there any compliance or regulatory differences between these parts?

A: The MB6F includes ROHS3 compliance and REACH unaffected status. The MMB6G-HF is obsolete and no longer supported. For new designs and production continuity, the MB6F is the recommended selection.

Q: Is the package footprint identical between these components?

A: Yes. Both the MMB6G-HF and MB6F use 4-SMD, Gull Wing surface mount packaging, ensuring identical PCB footprint and assembly compatibility.

Q: What is the availability status of the MB6F?

A: The MB6F is an active product with 125,200 pieces in stock, providing reliable long-term availability for production and design requirements.