MB358W-BP Bridge Rectifier Single Phase 800V 35A Equivalent & Substitute Parts

Part Overview

The MB358W-BP is a single-phase bridge rectifier manufactured by Micro Commercial Co, rated for 800V peak reverse voltage and 35A average rectified current. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing system maintenance and new design implementations. The MB358W-BP operates across a wide temperature range of -55°C to 150°C and is housed in a 4-Square MB-35W through-hole package configuration.

Substiute Parts

MB358W-BP

Micro Commercial CoIn Stock: 885MB358W-BP Datasheet

Current PartRFQ

KBPC3508W-G

Comchip TechnologyIn Stock: 1184KBPC3508W-G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MB358W-BP is determined by strict equivalence across the following critical parameters:

• Diode Type: Single Phase
• Technology: Standard
• Voltage - Peak Reverse (Max): 800 V
• Current - Average Rectified (Io): 35 A
• Mounting Type: Through Hole
• Operating Temperature Range: -55°C ~ 150°C (TJ)

The KBPC3508W-G manufactured by Comchip Technology meets all these core electrical and mechanical requirements. Both components share identical voltage and current ratings, operate across the same temperature range, and utilize through-hole mounting. The substitute part maintains full compatibility with applications designed for the MB358W-BP.

Parameter Comparison

Engineering Selection Recommendations

The KBPC3508W-G is a direct functional equivalent to the MB358W-BP. Both components are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The substitute part carries active product status, ensuring ongoing availability and supply chain continuity. The KBPC3508W-G demonstrates a lower forward voltage drop (1.1 V versus 1.2 V at 17.5 A), which may provide marginal efficiency improvements in rectification applications. Both parts maintain identical electrical performance across voltage, current, and temperature specifications, with compatible through-hole package configurations suitable for direct board-level substitution.

Frequently Asked Questions (FAQ)

Q: Can the KBPC3508W-G replace the MB358W-BP in existing designs?

A: Yes. Both components share identical voltage ratings (800 V peak reverse), current ratings (35 A average rectified), operating temperature ranges (-55°C to 150°C), and through-hole mounting configurations. The electrical and mechanical parameters are equivalent for direct substitution.

Q: What is the difference in forward voltage between these parts?

A: The MB358W-BP has a maximum forward voltage of 1.2 V at 17.5 A, while the KBPC3508W-G is rated at 1.1 V at the same current. This 0.1 V difference is within normal manufacturing tolerances for standard bridge rectifier technology and does not affect functional compatibility.

Q: Are the package dimensions identical?

A: Both parts use 4-Square through-hole packages. The MB358W-BP uses the MB-35W package designation, while the KBPC3508W-G uses the KBPC-W designation. Both are mechanically compatible for through-hole PCB mounting.

Q: What is the compliance status of the substitute part?

A: The KBPC3508W-G is ROHS3 compliant and REACH unaffected, matching the regulatory status of the MB358W-BP. Both components meet current environmental and hazardous substance restrictions.

Q: Why is the MB358W-BP listed as obsolete?

A: The MB358W-BP is no longer in active production. The KBPC3508W-G, maintained in active product status by Comchip Technology, provides continued availability for applications requiring 800V 35A single-phase bridge rectifier functionality.