KBPC3504-G Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The KBPC3504-G is a single-phase bridge rectifier manufactured by Comchip Technology, designed for 400 V peak reverse voltage applications with 35 A average rectified current capacity. This component is classified as Active product status and is fully RoHS3 compliant. Bridge rectifiers in this specification class are essential for AC-to-DC conversion in industrial power supply circuits, motor control systems, and general-purpose rectification applications. Identifying equivalent substitute parts ensures design flexibility, supply chain continuity, and procurement optimization when the primary part becomes unavailable or when alternative sourcing is required.

Substiute Parts

KBPC3504-G

Comchip TechnologyIn Stock: 926KBPC3504-G Datasheet

Current PartRFQ

GBPC3504-BP

Micro Commercial CoIn Stock: 1432GBPC3504-BP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the KBPC3504-G are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

• Diode Type: Single Phase (required match)
• Technology: Standard (required match)
• Voltage - Peak Reverse (Max): 400 V (required match)
• Current - Average Rectified (Io): 35 A (required match)
• Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 17.5 A (required match)
• Operating Temperature Range: -55°C to 150°C (required match)
• Mounting Type: QC Terminal (required match)
• Package / Case: 4-Square configuration (required match)
• RoHS Status: ROHS3 Compliant (required match)
• Moisture Sensitivity Level: 1 (Unlimited) (required match)

The GBPC3504-BP manufactured by Micro Commercial Co meets all substitution criteria and is therefore classified as a direct equivalent for the KBPC3504-G.

Parameter Comparison

Engineering Selection Recommendations

The KBPC3504-G is the primary selection for new designs due to its Active product status. The GBPC3504-BP is electrically and mechanically equivalent and serves as a direct substitute when the KBPC3504-G is unavailable. However, the GBPC3504-BP carries a "Not For New Designs" designation, making it suitable only for replacement, repair, or legacy system applications where the original part specification must be maintained.

Both parts are RoHS3 compliant, REACH unaffected, and carry unlimited moisture sensitivity classification, ensuring compatibility with modern manufacturing and environmental standards. The reverse leakage current specification differs slightly (10 µA for KBPC3504-G versus 5 µA for GBPC3504-BP), with the GBPC3504-BP demonstrating lower leakage characteristics. This difference does not affect substitution eligibility for standard rectification applications.

Frequently Asked Questions (FAQ)

Q: Can GBPC3504-BP be used as a direct replacement for KBPC3504-G in new designs?

A: The GBPC3504-BP is electrically and mechanically equivalent to the KBPC3504-G and meets all specified parameters. However, due to its "Not For New Designs" status, it is not recommended for new product development. Use KBPC3504-G for new designs and reserve GBPC3504-BP for replacement or legacy applications.

Q: Are the package dimensions identical between KBPC3504-G and GBPC3504-BP?

A: Both parts use 4-Square package configuration with QC Terminal mounting type. While the package family is the same, the specific package designations differ (KBPC versus GBPC). Physical dimensions should be verified against manufacturer datasheets to confirm PCB layout compatibility.

Q: What is the significance of the reverse leakage current difference?

A: The GBPC3504-BP exhibits lower reverse leakage current (5 µA) compared to the KBPC3504-G (10 µA) at 400 V. This represents improved leakage characteristics in the substitute part and does not negatively impact substitution. Both values are within acceptable ranges for standard rectification applications.

Q: Are both parts compliant with current environmental and regulatory standards?

A: Yes. Both KBPC3504-G and GBPC3504-BP are RoHS3 compliant, REACH unaffected, and classified as MSL 1 (Unlimited), meeting current environmental and regulatory requirements for industrial and commercial applications.

Q: What should be considered when switching from KBPC3504-G to GBPC3504-BP in existing designs?

A: Verify PCB layout compatibility with the specific package dimensions of GBPC3504-BP. Confirm that thermal management and mounting provisions accommodate the GBPC package configuration. Electrical performance remains equivalent across all specified parameters.