KBL02 Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The KBL02 is a single-phase bridge rectifier manufactured by onsemi, rated for 200 V peak reverse voltage and 4 A average rectified current. This component is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production requirements. The KBL02 features a through-hole 4-SIP package and operates across the industrial temperature range of -55°C to 150°C.

Key Parameters

Parameter	Value
Voltage - Peak Reverse (Max)	200 V
Current - Average Rectified (Io)	4 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 4 A
Current - Reverse Leakage @ Vr	5 µA @ 200 V
Operating Temperature Range	-55°C ~ 150°C (TJ)
Mounting Type	Through Hole
Package / Case	4-SIP, KBL
Diode Type	Single Phase
Technology	Standard

Substitute Part Grouping Explanation

Substitution for the KBL02 is determined by the following critical parameters:

Voltage Rating: Peak reverse voltage must be 200 V or greater
Current Rating: Average rectified current must meet or exceed 4 A
Diode Type: Single-phase bridge rectifier configuration
Technology: Standard rectifier technology
Mounting: Through-hole package compatible with 4-SIP footprint
Temperature Range: Operating range of -55°C to 150°C or wider

The substitute parts listed (GBU2502-G, GBU402-G, GBU602-G, GBU802-G) from Comchip Technology meet all critical electrical and mechanical parameters. These components maintain the same voltage rating, support equal or higher current ratings, and share identical mounting and temperature specifications. All substitutes are manufactured by Comchip Technology and are classified as active products with RoHS3 compliance.

Parameter Comparison

Parameter	KBL02	GBU2502-G	GBU402-G	GBU602-G	GBU802-G
Manufacturer	onsemi	Comchip Technology	Comchip Technology	Comchip Technology	Comchip Technology
Voltage - Peak Reverse (Max)	200 V	200 V	200 V	200 V	200 V
Current - Average Rectified (Io)	4 A	4.2 A	4 A	6 A	8 A
Voltage - Forward (Vf) (Max)	1.1 V @ 4 A	1 V @ 12.5 A	1 V @ 2 A	1 V @ 3 A	1 V @ 4 A
Current - Reverse Leakage @ Vr	5 µA @ 200 V	10 µA @ 50 V	10 µA @ 200 V	5 µA @ 200 V	10 µA @ 200 V
Operating Temperature	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	4-SIP, KBL	4-SIP, GBU	4-SIP, GBU	4-SIP, GBU	4-SIP, GBU
Product Status	Obsolete	Active	Active	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

All four substitute parts (GBU2502-G, GBU402-G, GBU602-G, GBU802-G) are active products from Comchip Technology with ROHS3 compliance, providing long-term availability and regulatory alignment. The GBU402-G offers the closest electrical match to the KBL02, with identical 4 A current rating and 200 V voltage specification. For applications requiring higher current capacity, the GBU602-G (6 A) and GBU802-G (8 A) provide additional margin while maintaining the same voltage rating and temperature range. The GBU2502-G supports 4.2 A, offering minimal current headroom above the KBL02 specification. All substitutes maintain through-hole mounting compatibility and operate within the same temperature envelope as the original component.

Frequently Asked Questions (FAQ)

Q: Can GBU402-G directly replace KBL02 in existing designs? A: Yes. The GBU402-G matches the KBL02 in voltage rating (200 V), current rating (4 A), operating temperature range (-55°C to 150°C), and through-hole mounting configuration. Both components use 4-SIP package geometry compatible with KBL footprints.

Q: What is the difference between GBU402-G and GBU602-G? A: The primary difference is current rating. GBU402-G is rated for 4 A average rectified current, while GBU602-G is rated for 6 A. Both maintain 200 V voltage rating and identical temperature specifications. GBU602-G provides additional current capacity for designs with higher power requirements.

Q: Are all substitute parts RoHS compliant? A: Yes. All four substitute parts (GBU2502-G, GBU402-G, GBU602-G, GBU802-G) are ROHS3 compliant. The original KBL02 RoHS status is not specified in the available data.

Q: Do the substitute parts have the same package footprint as KBL02? A: All substitutes use 4-SIP through-hole packages. The KBL02 uses KBL package designation, while substitutes use GBU package designation. Both are 4-SIP configurations with compatible through-hole pin spacing for standard PCB layouts.

Q: Why is the KBL02 listed as obsolete? A: The KBL02 is classified as obsolete by onsemi. Active alternatives from Comchip Technology ensure continued availability and support for applications currently using this component.

Q: What is the reverse leakage current difference between KBL02 and substitutes? A: The KBL02 specifies 5 µA @ 200 V reverse leakage. Substitute specifications vary: GBU2502-G (10 µA @ 50 V), GBU402-G (10 µA @ 200 V), GBU602-G (5 µA @ 200 V), and GBU802-G (10 µA @ 200 V). GBU602-G matches the KBL02 leakage specification exactly.

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