MB354W Bridge Rectifier Single Phase 400V 35A Equivalent & Substitute Parts

Part Overview

The MB354W is a single-phase bridge rectifier manufactured by Micro Commercial Co, rated for 400V peak reverse voltage and 35A average rectified current. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement continuity. Bridge rectifiers in this category are used in power supply circuits, industrial equipment, and AC-to-DC conversion applications requiring through-hole mounting.

Substiute Parts

MB354W

Micro Commercial CoIn Stock: 756MB354W Datasheet

Current PartRFQ

GBPC3510W-G

Comchip TechnologyIn Stock: 5636GBPC3510W-G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MB354W is determined by the following critical parameters:

• Diode Type & Technology: Single Phase, Standard technology
• Current Rating: 35A average rectified current (Io)
• Voltage Rating: Minimum 400V peak reverse voltage
• Mounting Configuration: Through-hole mount with 4-Square package footprint compatibility
• Operating Temperature: -55°C to 150°C junction temperature range
• Forward Voltage Characteristics: Maximum forward voltage drop at rated current

The GBPC3510W-G qualifies as a substitute because it maintains the required 35A current rating, through-hole mounting, and operating temperature range. The substitute part exceeds the minimum voltage requirement (1kV vs. 400V), which is acceptable for applications designed for the MB354W. Both parts use standard bridge rectifier technology and identical package form factors.

Parameter Comparison

Engineering Selection Recommendations

The GBPC3510W-G is suitable for direct substitution in applications originally designed for the MB354W. The substitute part is currently in active production status with 5539 units available in inventory, compared to the obsolete MB354W with limited stock of 743 units.

The GBPC3510W-G provides improved compliance status: ROHS3 compliant versus the non-compliant MB354W. The higher voltage rating (1kV vs. 400V) does not create compatibility issues for circuits designed for 400V operation, as the substitute part will operate within its safe operating area at the lower voltage.

Forward voltage characteristics are comparable, with the GBPC3510W-G showing a slight improvement (1.1V vs. 1.2V at 17.5A). Both parts maintain identical current ratings, temperature ranges, and through-hole mounting configurations.

Frequently Asked Questions (FAQ)

Q: Can the GBPC3510W-G replace the MB354W in existing designs?

A: Yes. Both parts share identical current ratings (35A), operating temperature ranges (-55°C to 150°C), mounting types (through-hole), and package form factors (4-Square). The GBPC3510W-G's higher voltage rating (1kV) is compatible with 400V circuit designs.

Q: What are the key differences between these parts?

A: The primary differences are manufacturer (Micro Commercial Co vs. Comchip Technology), product status (obsolete vs. active), and compliance certifications (RoHS non-compliant vs. ROHS3 compliant). The GBPC3510W-G has a higher peak reverse voltage rating and slightly lower forward voltage drop.

Q: Are the package footprints identical?

A: Both parts use 4-Square through-hole packages (MB-35W and GBPC-W respectively). The physical form factors are compatible for PCB mounting applications.

Q: Does the higher voltage rating of the substitute affect circuit performance?

A: No. A component rated for higher voltage operates safely at lower voltages. The GBPC3510W-G will function correctly in circuits designed for 400V operation.

Q: What is the inventory status for each part?

A: The MB354W has 743 units available as new original stock. The GBPC3510W-G has 5539 units available, providing better long-term procurement availability.