KBJ602G Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The KBJ602G is a single-phase bridge rectifier manufactured by Diodes Incorporated, rated for 200 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	KBJ602G
Manufacturer	Diodes Incorporated
Category	Diodes
Diode Type	Single Phase
Technology	Standard
Voltage - Peak Reverse (Max)	200 V
Current - Average Rectified (Io)	6 A
Voltage - Forward (Vf) (Max) @ If	1 V @ 3 A
Current - Reverse Leakage @ Vr	5 µA @ 200 V
Operating Temperature Range	-65°C to 150°C (TJ)
Mounting Type	Through Hole
Package / Case	4-SIP, KBJ
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the KBJ602G is determined by three critical parameters: voltage rating (peak reverse voltage), current rating (average rectified current), and package compatibility. All substitute parts must maintain the same diode type (single phase), technology (standard), mounting type (through hole), and package format (4-SIP KBJ).

Direct substitutes for the KBJ602G are limited to parts with matching 6 A current rating and 200 V voltage rating. The KBJ402G meets these exact specifications. Parts with lower current ratings (4 A) or different voltage ratings can be used only when circuit requirements permit derating of current capacity or when lower voltage ratings are acceptable for the application.

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
KBJ602G	200 V	6 A	1 V @ 3 A	5 µA @ 200 V	-65°C to 150°C	4-SIP, KBJ	Obsolete	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
KBJ401G	100 V	4 A	1 V @ 2 A	5 µA @ 100 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
KBJ4005G	50 V	4 A	1 V @ 2 A	5 µA @ 50 V	-65°C to 150°C	4-SIP, KBJ	Active	ROHS3 Compliant

Engineering Selection Recommendations

KBJ402G is the primary substitute for KBJ602G applications. Both parts share identical 200 V peak reverse voltage rating and 4-SIP KBJ package format. The KBJ402G is active in production status, ensuring long-term availability. Current rating differs at 4 A versus 6 A; selection depends on circuit current requirements. Both parts maintain ROHS3 compliance and identical operating temperature range.

For applications requiring 6 A current capacity with different voltage ratings, KBJ601G (100 V), KBJ604G (400 V), and KBJ606G (600 V) provide active alternatives. These parts preserve the 6 A current specification and forward voltage characteristics while offering voltage flexibility.

For applications where 4 A current capacity is acceptable, KBJ401G, KBJ404G, KBJ406G, KBJ408G, and KBJ410G provide voltage options from 100 V to 1 kV in active production status.

All substitute parts listed maintain identical package format, mounting type, operating temperature range, and RoHS compliance status with the original KBJ602G specification.

Frequently Asked Questions (FAQ)

Q: Can KBJ402G directly replace KBJ602G? A: KBJ402G shares the same 200 V voltage rating and 4-SIP KBJ package as KBJ602G. The current rating differs: KBJ402G is rated for 4 A average rectified current versus KBJ602G at 6 A. Direct substitution is valid only when circuit current requirements do not exceed 4 A.

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 safely conduct. A 6 A part (KBJ602G) handles higher continuous current than a 4 A part (KBJ402G). Using a lower-rated part in a higher-current application risks thermal stress and premature failure.

Q: Can I use a higher voltage-rated part in place of KBJ602G? A: Yes. Bridge rectifiers with higher peak reverse voltage ratings (such as KBJ604G at 400 V or KBJ606G at 600 V) are backward-compatible with lower-voltage applications. The circuit will operate normally; the higher voltage rating provides additional safety margin.

Q: Can I use a lower voltage-rated part in place of KBJ602G? A: No. Using a part with lower peak reverse voltage rating (such as KBJ601G at 100 V) in a 200 V application risks diode breakdown and circuit failure.

Q: Are all substitute parts in the same package? A: Yes. All listed substitute parts use the 4-SIP KBJ through-hole package format, ensuring mechanical and electrical compatibility with existing PCB layouts.

Q: What is the product status significance? A: KBJ602G is obsolete, meaning Diodes Incorporated no longer manufactures it. All listed substitute parts are active in production, ensuring availability for new designs and ongoing procurement.

Q: Do all parts meet the same compliance standards? A: Yes. All parts listed are ROHS3 compliant with MSL rating of 1 (unlimited moisture sensitivity), matching the original KBJ602G specifications.

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