KBJ6005G Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The KBJ6005G is a single-phase bridge rectifier manufactured by Diodes Incorporated, rated for 50 V peak reverse voltage and 6 A average rectified current in a 4-SIP KBJ through-hole package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	KBJ6005G
Manufacturer	Diodes Incorporated
Diode Type	Single Phase
Technology	Standard
Voltage - Peak Reverse (Max)	50 V
Current - Average Rectified (Io)	6 A
Voltage - Forward (Vf) (Max) @ If	1 V @ 3 A
Current - Reverse Leakage @ Vr	5 µA @ 50 V
Operating Temperature Range	-65°C to 150°C (TJ)
Mounting Type	Through Hole
Package / Case	4-SIP, KBJ
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the KBJ6005G is determined by three critical parameters: voltage rating (peak reverse voltage), current rating (average rectified current), and package type. All substitute parts must maintain the 4-SIP KBJ through-hole package and standard technology classification to ensure mechanical and electrical compatibility.

Substitute parts are grouped into two categories:

Direct Current Rating Match (6 A): Parts maintaining the 6 A current specification with varying voltage ratings: KBJ601G (100 V), KBJ604G (400 V), and KBJ606G (600 V). These parts are interchangeable when voltage derating is acceptable.

Reduced Current Rating (4 A): Parts with lower current capacity but compatible voltage options: KBJ4005G (50 V), KBJ401G (100 V), KBJ402G (200 V), KBJ404G (400 V), KBJ406G (600 V), KBJ408G (800 V), and KBJ410G (1 kV). These parts require circuit validation to confirm current capacity is sufficient.

Parameter Comparison

Part Number	Voltage - Peak Reverse (Max)	Current - Average Rectified (Io)	Voltage - Forward (Vf) (Max) @ If	Current - Reverse Leakage @ Vr	Operating Temperature	Package / Case	Product Status	RoHS Status
KBJ6005G	50 V	6 A	1 V @ 3 A	5 µA @ 50 V	-65°C to 150°C	4-SIP, KBJ	Obsolete	ROHS3 Compliant
KBJ4005G	50 V	4 A	1 V @ 2 A	5 µA @ 50 V	-65°C to 150°C	4-SIP, KBJ	Active	ROHS3 Compliant
KBJ401G	100 V	4 A	1 V @ 2 A	5 µA @ 100 V	-65°C to 150°C	4-SIP, KBJ	Active	ROHS3 Compliant
KBJ402G	200 V	4 A	1 V @ 2 A	5 µA @ 200 V	-65°C to 150°C	4-SIP, KBJ	Active	ROHS3 Compliant
KBJ404G	400 V	4 A	1 V @ 2 A	5 µA @ 400 V	-65°C to 150°C	4-SIP, KBJ	Active	ROHS3 Compliant
KBJ406G	600 V	4 A	1 V @ 2 A	5 µA @ 600 V	-65°C to 150°C	4-SIP, KBJ	Active	ROHS3 Compliant
KBJ408G	800 V	4 A	1 V @ 2 A	5 µA @ 800 V	-65°C to 150°C	4-SIP, KBJ	Active	ROHS3 Compliant
KBJ410G	1 kV	4 A	1 V @ 2 A	5 µA @ 1000 V	-65°C to 150°C	4-SIP, KBJ	Active	ROHS3 Compliant
KBJ601G	100 V	6 A	1 V @ 3 A	5 µA @ 100 V	-65°C to 150°C	4-SIP, KBJ	Active	ROHS3 Compliant
KBJ604G	400 V	6 A	1 V @ 3 A	5 µA @ 400 V	-65°C to 150°C	4-SIP, KBJ	Active	ROHS3 Compliant
KBJ606G	600 V	6 A	1 V @ 3 A	5 µA @ 600 V	-65°C to 150°C	4-SIP, KBJ	Active	ROHS3 Compliant

Engineering Selection Recommendations

All substitute parts listed are manufactured by Diodes Incorporated in the active product status category, ensuring ongoing availability and support. All parts maintain ROHS3 compliance and identical operating temperature ranges (-65°C to 150°C).

For applications requiring the exact 50 V / 6 A specification, KBJ4005G is the only active substitute with matching voltage and current ratings. This part is available in higher inventory (2620 pcs) compared to the obsolete KBJ6005G.

For applications where voltage derating is acceptable, KBJ601G (100 V / 6 A) and KBJ604G (400 V / 6 A) maintain the 6 A current rating while providing higher voltage margins. KBJ606G (600 V / 6 A) offers maximum voltage capability at the original current specification.

For applications where current derating is acceptable, the 4 A series (KBJ4005G, KBJ401G, KBJ402G, KBJ404G, KBJ406G, KBJ408G, KBJ410G) provides voltage options from 50 V to 1 kV. Circuit analysis is required to confirm 4 A capacity is sufficient for the intended application.

Frequently Asked Questions (FAQ)

Q: Can KBJ4005G directly replace KBJ6005G?

A: KBJ4005G matches the 50 V voltage rating but reduces current capacity from 6 A to 4 A. Direct substitution requires circuit analysis to confirm the application does not exceed 4 A average rectified current.

Q: What is the difference between 6 A and 4 A rated parts?

A: Current rating indicates maximum average rectified current the bridge rectifier can handle continuously within specified operating temperature range. The 6 A parts (KBJ601G, KBJ604G, KBJ606G) support higher current applications than 4 A parts. Selection depends on circuit current requirements.

Q: Are all substitute parts in the same package?

A: Yes. All listed substitute parts use the 4-SIP KBJ through-hole package, ensuring identical mechanical compatibility and PCB footprint.

Q: What does peak reverse voltage mean for bridge rectifier selection?

A: Peak reverse voltage is the maximum reverse voltage the bridge rectifier can withstand without breakdown. Higher voltage ratings provide safety margin but do not affect forward operation. A 100 V rated part operates identically to a 50 V rated part in a 50 V application.

Q: Why are some parts listed as obsolete?

A: KBJ6005G is classified as obsolete, indicating Diodes Incorporated has discontinued production. All recommended substitute parts maintain active status, ensuring long-term availability and manufacturing support.

Q: Do all parts have identical forward voltage characteristics?

A: Forward voltage is specified at different current levels. The 6 A series specifies Vf at 3 A, while the 4 A series specifies Vf at 2 A. At equivalent current levels, forward voltage characteristics are identical across all parts.

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