KBU1006 Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The KBU1006 is a single-phase bridge rectifier manufactured by GeneSiC Semiconductor, rated for 600 V peak reverse voltage and 10 A average rectified current. This component is designed for through-hole mounting in 4-SIP KBU package configuration and operates across the temperature range of -55°C to 150°C. The part maintains Active product status and is RoHS Compliant with unlimited moisture sensitivity level (MSL 1).

Substitute parts become necessary when the primary component experiences supply constraints, extended lead times, or inventory limitations. The KBU1006 maintains 1402 pieces in current stock; however, alternative bridge rectifier models with compatible electrical and mechanical specifications provide design flexibility and supply chain redundancy.

Substiute Parts

KBU1006

GeneSiC SemiconductorIn Stock: 1503KBU1006 Datasheet

Current PartRFQ

GBU2506-G

Comchip TechnologyIn Stock: 2212GBU2506-G Datasheet

SimilarRFQ

GBU406-G

Comchip TechnologyIn Stock: 919GBU406-G Datasheet

SimilarRFQ

GBU606-G

Comchip TechnologyIn Stock: 759GBU606-G Datasheet

SimilarRFQ

GBU806-G

Comchip TechnologyIn Stock: 793GBU806-G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KBU1006 is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Voltage - Peak Reverse (Max): 600 V
• Diode Type: Single Phase
• Technology: Standard
• Operating Temperature Range: -55°C ~ 150°C (TJ)
• Mounting Type: Through Hole
• Package / Case: 4-SIP configuration
• Current - Reverse Leakage @ Vr: 10 µA @ 600 V

Current Rating Consideration: The KBU1006 specifies 10 A average rectified current. Substitute parts with lower current ratings (4 A, 4.2 A, 6 A, 8 A) are electrically compatible at the voltage and reverse leakage levels but operate within reduced current capacity. These substitutes function in applications where the circuit current demand does not exceed the substitute part's rated current specification.

All identified substitute parts are manufactured by Comchip Technology and maintain identical voltage ratings, temperature ranges, reverse leakage characteristics, and through-hole mounting configuration as the primary KBU1006 component.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection Criteria:

All substitute parts maintain Active product status and comply with RoHS/ROHS3 environmental standards. The electrical compatibility is established through matching voltage ratings (600 V peak reverse), reverse leakage characteristics (10 µA @ 600 V), and operating temperature range (-55°C to 150°C).

Current Rating Alignment:

The GBU806-G (8 A) provides the closest current rating match to the KBU1006 (10 A) among available substitutes. This part is suitable for applications where circuit current demand does not exceed 8 A.

The GBU606-G (6 A) and GBU406-G (4 A) are appropriate for lower-current applications. The GBU2506-G (4.2 A) offers intermediate current capacity.

Compliance and Certification:

All substitute parts maintain unlimited moisture sensitivity (MSL 1), eliminating moisture-related handling constraints. Comchip Technology substitutes carry ROHS3 Compliant certification, meeting current environmental regulations. The KBU1006 carries RoHS Compliant status, confirming equivalent environmental compliance.

Package Consideration:

The KBU1006 uses KBU package designation, while all Comchip substitutes use GBU package designation. Both are 4-SIP through-hole configurations with identical pin spacing and mounting footprint compatibility.

Frequently Asked Questions (FAQ)

Q: Can GBU806-G directly replace KBU1006 in all applications?

A: GBU806-G is electrically compatible with KBU1006 when circuit current demand does not exceed 8 A. Both parts share identical 600 V voltage rating, 10 µA reverse leakage, -55°C to 150°C operating range, and through-hole 4-SIP mounting. The 8 A current rating of GBU806-G is lower than the 10 A specification of KBU1006; therefore, applications requiring sustained 10 A operation require verification that circuit current remains within GBU806-G limits.

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

A: KBU and GBU are both 4-SIP through-hole bridge rectifier packages with identical pin configurations and mounting footprints. The designation difference reflects manufacturer-specific package naming conventions. Both packages are mechanically and electrically interchangeable in PCB applications.

Q: Are all substitute parts RoHS compliant?

A: Yes. The KBU1006 carries RoHS Compliant certification. All Comchip substitute parts (GBU2506-G, GBU406-G, GBU606-G, GBU806-G) carry ROHS3 Compliant certification, confirming compliance with current environmental regulations.

Q: What is the significance of the 10 µA reverse leakage specification?

A: All parts in this comparison maintain identical reverse leakage of 10 µA @ 600 V. This parameter defines the maximum leakage current when the bridge rectifier is reverse-biased at rated voltage. Matching this specification ensures equivalent performance in applications sensitive to reverse leakage characteristics.

Q: Can lower-current substitutes be used in higher-current applications?

A: No. The current rating of a bridge rectifier defines its maximum continuous current capacity. Using a lower-rated substitute (such as GBU406-G at 4 A) in an application requiring 10 A operation will result in component failure due to thermal stress and junction temperature exceeding the 150°C maximum operating limit.

Q: What inventory levels are available for substitute parts?

A: GBU2506-G: 2200 pieces; GBU406-G: 876 pieces; GBU606-G: 714 pieces; GBU806-G: 688 pieces. KBU1006 maintains 1402 pieces in current stock.