KBJ2502G Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The KBJ2502G is a single-phase bridge rectifier manufactured by GeneSiC Semiconductor, rated for 200 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 are identified when equivalent electrical and mechanical parameters allow direct replacement within the same application circuit, maintaining voltage and current specifications while accommodating packaging and thermal requirements.

Substiute Parts

KBJ2502G

GeneSiC SemiconductorIn Stock: 750KBJ2502G Datasheet

Current PartRFQ

KBJ402G

Diodes IncorporatedIn Stock: 763KBJ402G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KBJ2502G is determined by the following critical parameters:

Voltage Compatibility: Peak reverse voltage must equal or exceed 200 V to maintain circuit protection and component reliability.

Current Rating: Average rectified current (Io) must meet or exceed 25 A to handle the application load without thermal stress or component failure.

Package Compatibility: The 4-SIP KBJ through-hole package must be maintained to ensure mechanical fit and PCB layout compatibility.

Diode Type and Technology: Single-phase standard bridge rectifier topology must be preserved.

Thermal Operating Range: The component must operate within the required temperature envelope of the application.

The KBJ402G from Diodes Incorporated does not qualify as a direct substitute for the KBJ2502G due to a critical current rating mismatch: the KBJ402G is rated for 4 A average rectified current, which falls significantly below the 25 A requirement of the KBJ2502G. Although both parts share identical voltage ratings (200 V), package type (4-SIP KBJ), and mounting method (through hole), the current capacity difference prevents functional equivalence in applications requiring 25 A rectification.

Parameter Comparison

Engineering Selection Recommendations

The KBJ2502G is the specified component for applications requiring 25 A average rectified current at 200 V peak reverse voltage. No direct substitute from the provided list meets the current capacity requirement.

The KBJ402G, while sharing identical voltage ratings and package configuration, is rated for only 4 A average rectified current. Selection of the KBJ402G in place of the KBJ2502G would result in component thermal overload and potential failure when subjected to 25 A load conditions.

Both parts maintain active product status and comply with RoHS regulations. The KBJ402G offers a wider operating temperature range (-65°C to 150°C versus -55°C to 125°C) and lower reverse leakage current (5 µA versus 10 µA), but these advantages do not compensate for the insufficient current rating.

For applications requiring the KBJ2502G specifications, continue use of the KBJ2502G or identify alternative bridge rectifiers with matching 25 A current capacity and 200 V voltage rating from other manufacturers.

Frequently Asked Questions (FAQ)

Q: Can the KBJ402G replace the KBJ2502G in my circuit?

A: No. The KBJ402G is rated for 4 A average rectified current, while the KBJ2502G is rated for 25 A. Using the KBJ402G in a 25 A application will cause the component to exceed its thermal limits and fail.

Q: Why do the parts have different current ratings if they use the same package?

A: The 4-SIP KBJ package accommodates multiple current ratings through different semiconductor die designs and internal configurations. Package size does not determine current capacity; internal semiconductor specifications do.

Q: Are both parts RoHS compliant?

A: Yes. The KBJ2502G is RoHS Compliant, and the KBJ402G is ROHS3 Compliant. Both meet environmental regulatory requirements.

Q: What is the significance of the different operating temperature ranges?

A: The KBJ402G operates from -65°C to 150°C, while the KBJ2502G operates from -55°C to 125°C. The KBJ402G has a wider range, but this does not affect substitution eligibility due to the current rating mismatch.

Q: If I need a 25 A bridge rectifier, what should I do?

A: Verify that the KBJ2502G remains available for your application. If supply constraints exist, consult the manufacturer's full product portfolio for alternative bridge rectifiers with 25 A current rating and 200 V voltage rating in compatible packages.

Q: What does "4-SIP, KBJ" package mean?

A: 4-SIP refers to a 4-pin Single In-line Package. KBJ is the industry-standard designation for bridge rectifier packages with this pin configuration. Both parts use this identical package type, ensuring mechanical compatibility.