KBJ2506G Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The KBJ2506G is a single-phase bridge rectifier manufactured by GeneSiC Semiconductor, rated for 600 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 and is RoHS Compliant with Moisture Sensitivity Level 1 (Unlimited).

Substitute parts are identified when equivalent electrical and mechanical parameters allow direct replacement within the same application circuit topology, maintaining voltage and current specifications within acceptable operating ranges.

Key Parameters

Parameter	Value	Unit
Voltage - Peak Reverse (Max)	600	V
Current - Average Rectified (Io)	25	A
Voltage - Forward (Vf) (Max) @ If	1.05 @ 12.5	V @ A
Current - Reverse Leakage @ Vr	10	µA @ 600 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 bridge rectifier diodes is determined by the following criteria:

Voltage Compatibility: Peak reverse voltage rating must equal or exceed the application requirement. All identified substitutes maintain the 600 V rating, ensuring voltage compatibility.

Current Rating: Current - Average Rectified (Io) must be sufficient for the application load. The KBJ2506G operates at 25 A. Substitute parts KBJ406G (4 A) and KBJ606G (6 A) operate at lower current ratings and are classified as lower-capacity alternatives within the same voltage class.

Package and Mounting: All parts use identical 4-SIP KBJ Through Hole package configuration, ensuring mechanical and electrical pin compatibility.

Thermal and Compliance Characteristics: Operating temperature range, RoHS status, and MSL rating determine suitability for specific manufacturing and environmental conditions.

Parameter Comparison

Parameter	KBJ2506G (GeneSiC)	KBJ406G (Diodes Inc.)	KBJ606G (Diodes Inc.)
Manufacturer	GeneSiC Semiconductor	Diodes Incorporated	Diodes Incorporated
Voltage - Peak Reverse (Max)	600 V	600 V	600 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 @ 600 V	5 µA @ 600 V	5 µA @ 600 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
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active

Engineering Selection Recommendations

Primary Selection (KBJ2506G): Maintains specified 25 A current rating. GeneSiC Semiconductor manufacturer designation. RoHS Compliant status. Active product status with 1085 units in stock.

Lower Current Alternative (KBJ606G): Suitable for applications requiring maximum 6 A average rectified current. Diodes Incorporated manufacturer. ROHS3 Compliant status. Extended operating temperature range (-65°C to 150°C). Active product status with 1348 units in stock.

Lower Current Alternative (KBJ406G): Suitable for applications requiring maximum 4 A average rectified current. Diodes Incorporated manufacturer. ROHS3 Compliant status. Extended operating temperature range (-65°C to 150°C). Active product status with 10400 units in stock.

All substitute parts share identical package configuration (4-SIP KBJ), voltage rating (600 V), and mounting type (Through Hole), ensuring mechanical compatibility. Selection between alternatives depends on actual circuit current requirements and thermal operating conditions.

Frequently Asked Questions (FAQ)

Q: Can KBJ406G or KBJ606G replace KBJ2506G in all applications?

A: No. KBJ406G and KBJ606G are rated for lower average rectified current (4 A and 6 A respectively) compared to KBJ2506G (25 A). These parts are suitable only for applications with current requirements within their respective ratings. Exceeding rated current causes component failure.

Q: Are the packages identical between all three parts?

A: Yes. All three parts use 4-SIP KBJ Through Hole package configuration with identical pin assignments and mechanical dimensions, ensuring direct PCB compatibility.

Q: What is the voltage compatibility between these parts?

A: All three parts maintain 600 V peak reverse voltage rating. They are voltage-compatible for applications designed for 600 V operation.

Q: Do the substitute parts have different compliance certifications?

A: KBJ2506G is RoHS Compliant. KBJ406G and KBJ606G are ROHS3 Compliant. Both certifications meet RoHS requirements; ROHS3 represents a more recent compliance standard. All parts have MSL 1 (Unlimited) rating.

Q: What is the temperature operating range difference?

A: KBJ2506G operates from -55°C to 125°C (TJ). KBJ406G and KBJ606G operate from -65°C to 150°C (TJ), providing extended low-temperature and high-temperature capability.

Q: How do forward voltage characteristics compare?

A: KBJ2506G: 1.05 V @ 12.5 A. KBJ406G: 1 V @ 2 A. KBJ606G: 1 V @ 3 A. Forward voltage is measured at different current levels specific to each part's rating. Direct comparison requires evaluation at equivalent current density conditions.

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