KBJ25005G Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The KBJ25005G is a single-phase bridge rectifier manufactured by GeneSiC Semiconductor, rated for 50 V peak reverse voltage and 25 A average rectified current. This component is designed for through-hole mounting in the 4-SIP KBJ package configuration and operates across the temperature range of -55°C to 125°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 when design requirements permit operation within alternative electrical and mechanical specifications. Substitution must be evaluated strictly against the allowed parameters for single-phase bridge rectifier applications.

Substiute Parts

KBJ25005G

GeneSiC SemiconductorIn Stock: 1128KBJ25005G Datasheet

Current PartRFQ

KBJ4005G

Diodes IncorporatedIn Stock: 2689KBJ4005G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KBJ25005G is determined by strict adherence to the following allowed parameters:

Mandatory Matching Parameters:

• Diode Type: Single Phase
• Technology: Standard
• Mounting Type: Through Hole
• Package / Case: 4-SIP, KBJ
• Voltage - Peak Reverse (Max): 50 V

Current Rating Consideration: The KBJ25005G is rated for 25 A average rectified current. The identified substitute, KBJ4005G, is rated for 4 A average rectified current. This represents a significant reduction in current-handling capacity and establishes a unidirectional substitution relationship: the KBJ4005G can substitute the KBJ25005G only in applications where the actual load current does not exceed 4 A.

Electrical Characteristics: Both parts operate at 50 V peak reverse voltage with standard bridge rectifier technology. Forward voltage and reverse leakage characteristics differ between the parts but remain within acceptable ranges for single-phase rectification applications.

Compliance and Environmental: Both parts are RoHS Compliant, carry MSL 1 (Unlimited), and are classified under ECCN EAR99 and HTSUS 8541.10.0080.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection: The KBJ25005G remains the preferred selection for applications requiring 25 A average rectified current at 50 V peak reverse voltage. The part is Active, RoHS Compliant, and maintains unlimited moisture sensitivity level. GeneSiC Semiconductor maintains active production status with 1067 pieces in current inventory.

Substitute Part Applicability: The KBJ4005G (Diodes Incorporated) is applicable only when circuit design permits operation at reduced current capacity (4 A maximum average rectified current). This substitute maintains identical voltage rating (50 V), package configuration (4-SIP KBJ), and mounting type (Through Hole). The KBJ4005G is ROHS3 Compliant and operates across an extended temperature range (-65°C to 150°C), providing broader environmental tolerance than the primary part.

Compliance Verification: Both parts satisfy RoHS requirements and carry identical ECCN and HTSUS classifications. Selection between these parts should be based on current requirement compatibility and supply availability rather than regulatory or environmental compliance considerations.

Frequently Asked Questions (FAQ)

Q: Can the KBJ4005G directly replace the KBJ25005G in all applications?

A: No. The KBJ4005G is rated for 4 A average rectified current, while the KBJ25005G is rated for 25 A. The substitute can only be used in applications where the actual load current does not exceed 4 A. Exceeding this current rating will result in component failure.

Q: Are the package dimensions identical between KBJ25005G and KBJ4005G?

A: Both parts use the 4-SIP KBJ package configuration with through-hole mounting. Physical dimensions and PCB footprints are identical, allowing direct mechanical substitution at the board level.

Q: What is the difference in forward voltage between these parts?

A: The KBJ25005G specifies 1.05 V maximum forward voltage at 12.5 A, while the KBJ4005G specifies 1.0 V maximum at 2.0 A. Forward voltage characteristics are measured at different current levels and reflect the different current ratings of each part.

Q: Do both parts meet the same RoHS requirements?

A: The KBJ25005G is RoHS Compliant, and the KBJ4005G is ROHS3 Compliant. Both satisfy RoHS environmental requirements. ROHS3 represents a more recent compliance standard revision.

Q: What is the operating temperature difference between these parts?

A: The KBJ25005G operates from -55°C to 125°C (TJ), while the KBJ4005G operates from -65°C to 150°C (TJ). The KBJ4005G provides extended low-temperature and high-temperature operation capability.

Q: Are there any moisture sensitivity concerns with either part?

A: Both parts carry MSL 1 (Unlimited), indicating no moisture sensitivity limitations. Standard handling and storage procedures apply to both components.

Q: What is the reverse leakage current specification for each part?

A: The KBJ25005G specifies 10 µA maximum reverse leakage at 50 V, while the KBJ4005G specifies 5 µA maximum at 50 V. The KBJ4005G exhibits lower reverse leakage characteristics.