KBJ2501G Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The KBJ2501G is a single-phase bridge rectifier manufactured by GeneSiC Semiconductor, rated for 100 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. The part maintains Active product status with 1074 units in current inventory stock.

Substitute parts are identified when equivalent electrical performance can be achieved within the specified parameter ranges while maintaining compatible mechanical packaging and thermal operating characteristics. Alternative models may be required due to supply constraints, manufacturing discontinuation, or application-specific inventory availability.

Key Parameters

Parameter	Value	Unit
Voltage - Peak Reverse (Max)	100	V
Current - Average Rectified (Io)	25	A
Voltage - Forward (Vf) (Max) @ If	1.05 @ 12.5	V @ A
Current - Reverse Leakage @ Vr	10	µA @ 100 V
Operating Temperature Range	-55 to 125	°C (TJ)
Mounting Type	Through Hole	—
Package / Case	4-SIP, KBJ	—
RoHS Status	RoHS Compliant	—

Substitute Part Grouping Explanation

Substitution eligibility for the KBJ2501G is determined by the following criteria:

Mandatory Compatibility Parameters:

Voltage - Peak Reverse (Max): 100 V (exact match required)
Mounting Type: Through Hole (exact match required)
Package / Case: 4-SIP, KBJ (exact match required)
Diode Type: Single Phase (exact match required)
Technology: Standard (exact match required)

Current Rating Consideration: The KBJ2501G operates at 25 A average rectified current. Substitute parts identified in this reference maintain the same voltage and package specifications. Current ratings in substitute models may differ; selection depends on application requirements and circuit design parameters not specified in this reference.

Thermal and Compliance Parameters: Operating temperature ranges and RoHS compliance status are provided for engineering evaluation. Substitute parts must maintain Through Hole mounting and KBJ package compatibility for direct mechanical and electrical interchange.

Parameter Comparison

Parameter	KBJ2501G (GeneSiC)	KBJ401G (Diodes Inc.)	KBJ601G (Diodes Inc.)
Manufacturer	GeneSiC Semiconductor	Diodes Incorporated	Diodes Incorporated
Voltage - Peak Reverse (Max)	100 V	100 V	100 V
Current - Average Rectified (Io)	25 A	4 A	6 A
Voltage - Forward (Vf) (Max) @ If	1.05 V @ 12.5 A	1 V @ 2 A	1 V @ 3 A
Current - Reverse Leakage @ Vr	10 µA @ 100 V	5 µA @ 100 V	5 µA @ 100 V
Operating Temperature Range	-55°C to 125°C (TJ)	-65°C to 150°C (TJ)	-65°C to 150°C (TJ)
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	4-SIP, KBJ	4-SIP, KBJ	4-SIP, KBJ
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging Type	Bulk	Tube	Tube
Product Status	Active	Active	Active

Engineering Selection Recommendations

KBJ401G (Diodes Incorporated): This substitute maintains 100 V peak reverse voltage and Through Hole KBJ package compatibility. The part is rated for 4 A average rectified current, which is lower than the KBJ2501G specification. ROHS3 compliance status is confirmed. This part is suitable for applications where current requirements do not exceed 4 A and where the lower thermal operating range (-65°C to 150°C) is acceptable.

KBJ601G (Diodes Incorporated): This substitute maintains 100 V peak reverse voltage and Through Hole KBJ package compatibility. The part is rated for 6 A average rectified current. ROHS3 compliance status is confirmed. This part is suitable for applications where current requirements do not exceed 6 A and where the extended thermal operating range (-65°C to 150°C) is acceptable.

Compliance Considerations: All identified substitutes maintain RoHS compliance status. The KBJ2501G carries RoHS Compliant designation, while KBJ401G and KBJ601G carry ROHS3 Compliant designation. Both compliance levels are acceptable for equivalent component selection in regulated applications.

Frequently Asked Questions (FAQ)

Q: Can KBJ401G or KBJ601G be used as direct replacements for KBJ2501G?

A: Direct mechanical and electrical interchange is possible only if the application circuit design permits operation at the lower current ratings specified for these substitute parts. KBJ401G is rated for 4 A and KBJ601G is rated for 6 A, compared to the KBJ2501G rating of 25 A. Verify that circuit current requirements do not exceed the substitute part rating.

Q: Are the package dimensions identical between KBJ2501G and the substitute parts?

A: All three parts use the 4-SIP KBJ package configuration with Through Hole mounting. Package mechanical compatibility is confirmed for PCB layout purposes.

Q: What is the difference between RoHS Compliant and ROHS3 Compliant status?

A: Both designations indicate compliance with RoHS (Restriction of Hazardous Substances) regulations. ROHS3 represents a more recent revision of the compliance standard. Both are acceptable for equivalent component selection in regulated applications.

Q: Do the substitute parts have different thermal operating ranges?

A: Yes. The KBJ2501G operates from -55°C to 125°C (TJ), while KBJ401G and KBJ601G operate from -65°C to 150°C (TJ). The substitute parts offer extended low-temperature and high-temperature operating ranges.

Q: What is the significance of forward voltage (Vf) differences between these parts?

A: Forward voltage is specified at different test currents for each part. KBJ2501G specifies 1.05 V @ 12.5 A, while KBJ401G specifies 1 V @ 2 A and KBJ601G specifies 1 V @ 3 A. These values reflect the electrical characteristics at the respective rated current levels and are not directly comparable across different current ratings.

Q: Are there inventory considerations for selecting a substitute?

A: Current inventory levels are: KBJ2501G (1074 units), KBJ401G (747 units), and KBJ601G (3672 units). Inventory availability may influence substitute selection when supply constraints exist.

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