KBU1010 Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The KBU1010 is a single-phase bridge rectifier manufactured by GeneSiC Semiconductor, rated for 1 kV peak reverse voltage and 10 A average rectified current. This component is designed for Through Hole mounting in the 4-SIP KBU package configuration. The part maintains Active product status with 2110 units in current inventory stock.

Substitute parts become necessary when addressing application requirements for higher current capacity, managing component availability across supply chains, or accommodating design revisions that permit alternative manufacturers while maintaining electrical and mechanical compatibility within the specified parameter envelope.

Substiute Parts

KBU1010

GeneSiC SemiconductorIn Stock: 2136KBU1010 Datasheet

Current PartRFQ

GBU2510-G

Comchip TechnologyIn Stock: 13533GBU2510-G Datasheet

SimilarRFQ

GBU410-G

Comchip TechnologyIn Stock: 1005GBU410-G Datasheet

SimilarRFQ

GBU610-G

Comchip TechnologyIn Stock: 1146GBU610-G Datasheet

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GBU810-G

Comchip TechnologyIn Stock: 773GBU810-G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KBU1010 is determined by strict alignment with the following critical parameters:

Mandatory Compatibility Criteria:

• Diode Type: Single Phase
• Technology: Standard
• Voltage - Peak Reverse (Max): 1 kV (exact match required)
• Operating Temperature Range: -55°C to 150°C (TJ) minimum
• Mounting Type: Through Hole
• Package / Case: 4-SIP configuration (KBU or GBU variants)
• RoHS Compliance: Required

Current Rating Consideration: The KBU1010 specifies 10 A average rectified current. Substitute parts with equal or higher current ratings (10 A, 25 A, 8 A, 6 A, 4 A) remain electrically compatible within the same voltage and thermal envelope, as higher current capacity does not degrade performance in lower-current applications.

Manufacturer Substitution: Comchip Technology GBU series parts meet all mandatory criteria and are listed as approved substitutes. The GBU package designation represents the same 4-SIP Through Hole form factor as the KBU package.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Recommended for Direct Replacement):

GBU810-G and GBU2510-G represent the most direct substitutes for the KBU1010. Both parts maintain identical peak reverse voltage (1 kV), identical operating temperature range (-55°C to 150°C), and identical package configuration (4-SIP Through Hole). GBU810-G provides 8 A current capacity, operating within the KBU1010's 10 A specification. GBU2510-G provides 25 A capacity, offering increased design margin. Both Comchip Technology parts carry ROHS3 compliance certification.

Secondary Substitutes (Current-Limited Applications):

GBU610-G (6 A) and GBU410-G (4 A) are electrically compatible substitutes where application current requirements do not exceed their respective ratings. These parts maintain all mandatory voltage, temperature, and package specifications. Selection depends on circuit current demand verification.

Compliance Basis:

All substitute parts listed maintain Active product status, RoHS compliance (ROHS3 standard), and Through Hole mounting in 4-SIP package configuration. Inventory availability across all substitutes supports supply chain flexibility.

Frequently Asked Questions (FAQ)

Q: Can GBU810-G replace KBU1010 in all applications?

A: GBU810-G is electrically compatible where circuit current requirements do not exceed 8 A. The 1 kV peak reverse voltage rating, -55°C to 150°C operating temperature range, and 4-SIP Through Hole package are identical. Verify application current demand before selection.

Q: What is the difference between KBU and GBU package designations?

A: Both KBU and GBU represent 4-SIP Through Hole package configurations with identical mechanical and electrical interfaces. The designations reflect different manufacturers (GeneSiC Semiconductor uses KBU; Comchip Technology uses GBU). Physical form factor and PCB footprint compatibility are maintained.

Q: Is GBU2510-G suitable for a 10 A application originally designed for KBU1010?

A: Yes. GBU2510-G provides 25 A average rectified current capacity, exceeding the 10 A requirement. All other parameters (1 kV voltage rating, -55°C to 150°C temperature range, 4-SIP Through Hole package) match the KBU1010 specification. Higher current capacity does not degrade performance in lower-current circuits.

Q: Why would GBU410-G or GBU610-G be selected instead of higher-capacity alternatives?

A: Component selection depends on actual circuit current requirements. GBU410-G (4 A) and GBU610-G (6 A) are appropriate for applications with verified current demands at or below their respective ratings. These parts maintain full electrical compatibility with KBU1010 voltage and temperature specifications.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts (GBU810-G, GBU610-G, GBU410-G, GBU2510-G) carry ROHS3 compliance certification, meeting current environmental and regulatory requirements.

Q: What is the reverse leakage current difference between GBU610-G and other substitutes?

A: GBU610-G specifies reverse leakage current of 10 µA @ 800 V, while KBU1010, GBU810-G, GBU410-G, and GBU2510-G specify 10 µA @ 1000 V. This represents a measurement condition difference rather than a functional incompatibility. All parts maintain the same leakage current magnitude (10 µA) within their respective voltage test conditions.