KBJ2510G Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The KBJ2510G is a single-phase bridge rectifier manufactured by GeneSiC Semiconductor, rated for 1 kV 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 is currently in active production status with RoHS compliance certification.

Substitute parts become necessary when the primary component experiences extended lead times, inventory constraints, or when design requirements permit operation at lower current ratings while maintaining voltage and package compatibility.

Key Parameters

Parameter	Value	Unit
Voltage - Peak Reverse (Max)	1	kV
Current - Average Rectified (Io)	25	A
Voltage - Forward (Vf) (Max) @ If	1.05 V @ 12.5 A	V @ A
Current - Reverse Leakage @ Vr	10	µA @ 1000 V
Operating Temperature Range	-55 to 125	°C
Mounting Type	Through Hole	—
Package / Case	4-SIP, KBJ	—
Diode Type	Single Phase	—
Technology	Standard	—

Substitute Part Grouping Explanation

Substitution eligibility for the KBJ2510G is determined by strict adherence to the following electrical and mechanical parameters:

Mandatory Matching Parameters:

Voltage - Peak Reverse (Max): 1 kV
Diode Type: Single Phase
Technology: Standard
Mounting Type: Through Hole
Package / Case: 4-SIP, KBJ

Allowable Variation Parameters:

Current - Average Rectified (Io): Lower ratings are acceptable for applications not requiring full 25 A capacity
Voltage - Forward (Vf): Variations within typical rectifier specifications
Current - Reverse Leakage: Lower values indicate improved performance
Operating Temperature Range: Extended ranges provide additional design margin

The identified substitute parts KBJ410G and KBJ610G maintain identical voltage ratings, diode type, technology classification, mounting configuration, and package specification. Both components differ only in current rating, which is a permissible variation when circuit design allows operation at reduced current levels.

Parameter Comparison

Parameter	KBJ2510G (GeneSiC)	KBJ410G (Diodes Inc.)	KBJ610G (Diodes Inc.)
Voltage - Peak Reverse (Max)	1 kV	1 kV	1 kV
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 @ 1000 V	5 µA @ 1000 V	5 µA @ 1000 V
Operating Temperature Range	-55°C to 125°C	-65°C to 150°C	-65°C to 150°C
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	4-SIP, KBJ	4-SIP, KBJ	4-SIP, KBJ
Diode Type	Single Phase	Single Phase	Single Phase
Technology	Standard	Standard	Standard
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

KBJ2510G (Primary Component): The KBJ2510G remains the specified component for applications requiring 25 A average rectified current capacity. This part maintains active production status and RoHS compliance. Current inventory of 843 pieces supports immediate procurement.

KBJ410G (Lower Current Substitute): The KBJ410G is suitable for applications with maximum current requirements of 4 A. This component is manufactured by Diodes Incorporated under ROHS3 compliance and features an extended operating temperature range of -65°C to 150°C. The lower current rating results in reduced forward voltage drop at rated current. Inventory availability is 800 pieces.

KBJ610G (Mid-Range Current Substitute): The KBJ610G accommodates applications requiring up to 6 A average rectified current. Manufactured by Diodes Incorporated with ROHS3 compliance and identical temperature range extension, this component provides intermediate current capacity between the 4 A and 25 A ratings. Inventory availability is 5860 pieces, representing the highest stock level among all listed options.

Selection between substitute parts depends solely on circuit current requirements. All three components share identical voltage ratings, package configuration, and mounting type, ensuring direct mechanical and electrical compatibility within their respective current specifications.

Frequently Asked Questions (FAQ)

Q: Can KBJ410G or KBJ610G be used in place of KBJ2510G?

A: Yes, provided the circuit design operates at or below the substitute part's current rating. KBJ410G supports maximum 4 A, and KBJ610G supports maximum 6 A. The KBJ2510G is required for applications demanding the full 25 A capacity.

Q: Are the package dimensions identical across all three parts?

A: Yes. All three components use the 4-SIP KBJ package configuration with through-hole mounting, ensuring identical PCB footprint and mechanical fit.

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

A: Forward voltage specifications are provided at different current levels. KBJ2510G specifies 1.05 V maximum at 12.5 A, while KBJ410G and KBJ610G specify 1 V maximum at 2 A and 3 A respectively. Direct comparison requires evaluation at identical current levels specific to your application.

Q: Do all parts meet RoHS requirements?

A: Yes. KBJ2510G is RoHS Compliant. KBJ410G and KBJ610G are ROHS3 Compliant. All three parts have Moisture Sensitivity Level 1 (Unlimited).

Q: What is the temperature operating range difference?

A: KBJ2510G operates from -55°C to 125°C. KBJ410G and KBJ610G both operate from -65°C to 150°C, providing extended low-temperature and high-temperature capability.

Q: Can these parts be used interchangeably on the same PCB?

A: Yes, mechanically and electrically, provided the circuit current requirements do not exceed the substitute part's rating. No PCB modifications are required due to identical package specifications.

Q: Which substitute part has the best inventory availability?

A: KBJ610G has the highest inventory with 5860 pieces in stock, compared to 800 pieces for KBJ410G and 843 pieces for KBJ2510G.

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