KBPC5004-G Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The KBPC5004-G is a single-phase bridge rectifier manufactured by Comchip Technology, rated for 400 V peak reverse voltage and 50 A average rectified current. This component is actively produced and suitable for new designs. Bridge rectifiers of this specification are commonly used in power supply circuits, industrial equipment, and AC-to-DC conversion applications where single-phase rectification is required.

Substitute parts may be necessary due to supply chain constraints, inventory availability, or design flexibility requirements. The GBPC3504-BP represents an alternative from Micro Commercial Co with comparable electrical characteristics, though with reduced current rating.

Substiute Parts

KBPC5004-G

Comchip TechnologyIn Stock: 1053KBPC5004-G Datasheet

Current PartRFQ

GBPC3504-BP

Micro Commercial CoIn Stock: 1432GBPC3504-BP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KBPC5004-G is determined by the following critical parameters:

• Voltage Rating: Peak reverse voltage must be 400 V or greater
• Current Rating: Average rectified current must meet or exceed 50 A for direct substitution
• Diode Type: Single-phase bridge rectifier configuration
• Mounting Interface: QC Terminal compatibility
• Package Form Factor: 4-Square case style
• Operating Temperature Range: -55°C to 150°C minimum
• Forward Voltage Characteristics: Maximum forward voltage at rated current

The GBPC3504-BP meets the voltage, mounting, package, temperature, and forward voltage requirements. However, its current rating of 35 A is lower than the KBPC5004-G specification of 50 A, classifying it as a substitute for applications with reduced current demands rather than a direct equivalent.

Parameter Comparison

Engineering Selection Recommendations

The KBPC5004-G is the primary selection for new designs, as it maintains active production status and meets the full 50 A current specification. Both parts satisfy RoHS3 and REACH compliance requirements.

The GBPC3504-BP is classified as "Not For New Designs" by its manufacturer. Selection of this substitute is appropriate only when the application current requirement does not exceed 35 A and supply constraints prevent use of the primary part. The identical voltage rating, operating temperature range, and QC Terminal mounting ensure mechanical and thermal compatibility. The lower reverse leakage current (5 µA versus 10 µA) of the substitute represents an improvement in this parameter.

Frequently Asked Questions (FAQ)

Q: Can GBPC3504-BP replace KBPC5004-G in all applications?

A: No. The GBPC3504-BP is rated for 35 A average rectified current, compared to 50 A for the KBPC5004-G. Substitution is valid only for circuits designed for 35 A or lower current operation. Exceeding this rating will result in component failure.

Q: Are the physical packages identical?

A: Both parts use 4-Square case styles with QC Terminal mounting. The KBPC package and GBPC package are mechanically compatible for board-level installation, though they are distinct package designations from different manufacturers.

Q: What is the significance of the "Not For New Designs" status of GBPC3504-BP?

A: This designation indicates the manufacturer is not recommending this part for new product development. It may be retained for legacy system support or repair applications. For new designs, the KBPC5004-G is the recommended selection.

Q: Are both parts compliant with environmental regulations?

A: Yes. Both the KBPC5004-G and GBPC3504-BP are RoHS3 compliant and REACH unaffected, meeting current environmental standards for electronic components.

Q: How do the forward voltage characteristics compare?

A: Both parts specify 1.1 V maximum forward voltage. The KBPC5004-G is rated at 25 A test current, while the GBPC3504-BP is rated at 17.5 A test current, reflecting their respective current ratings.