RS403L Bridge Rectifier Single Phase 200V 4A Equivalent & Substitute Parts

Part Overview

The RS403L is a single-phase bridge rectifier manufactured by Micro Commercial Co, rated for 200V peak reverse voltage and 4A average rectified current. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The RS403L features a through-hole RS-4L package configuration and operates across a temperature range of -55°C to 125°C.

Key Parameters

Parameter	Value
Diode Type	Single Phase
Technology	Standard
Voltage - Peak Reverse (Max)	200 V
Current - Average Rectified (Io)	4 A
Voltage - Forward (Vf) (Max)	1 V @ 3 A
Current - Reverse Leakage @ Vr	10 µA @ 200 V
Operating Temperature	-55°C ~ 125°C (TJ)
Mounting Type	Through Hole
Package / Case	4-SIP, RS-4L
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitute parts for the RS403L are qualified based on the following electrical and mechanical parameters:

Voltage Rating: Peak reverse voltage of 200V (exact match required)
Current Rating: Average rectified current of 4A or higher
Diode Type: Single phase bridge rectifier configuration
Mounting Type: Through hole package
Package Compatibility: RS-4L or equivalent 4-SIP footprint

The substitute parts listed below meet these core requirements. Parts with higher current ratings (GBU602-G at 6A and GBU802-G at 8A) are electrically compatible as they maintain the same voltage specification while providing increased current capacity. RS403GL-BP provides an exact functional match with improved temperature range and RoHS3 compliance. Comchip Technology GBU series parts (GBU2502-G, GBU402-G, GBU602-G, GBU802-G) offer active product status alternatives with enhanced compliance certifications.

Parameter Comparison

Parameter	RS403L	RS403GL-BP	GBU2502-G	GBU402-G	GBU602-G	GBU802-G
Manufacturer	Micro Commercial Co	Micro Commercial Co	Comchip Technology	Comchip Technology	Comchip Technology	Comchip Technology
Voltage - Peak Reverse (Max)	200 V	200 V	200 V	200 V	200 V	200 V
Current - Average Rectified (Io)	4 A	4 A	4.2 A	4 A	6 A	8 A
Voltage - Forward (Vf) (Max)	1 V @ 3 A	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	10 µA @ 200 V	5 µA @ 200 V	10 µA @ 50 V	10 µA @ 200 V	5 µA @ 200 V	10 µA @ 200 V
Operating Temperature	-55°C ~ 125°C	-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	Through Hole
Package / Case	4-SIP, RS-4L	4-SIP, RS-4L	4-SIP, GBU	4-SIP, GBU	4-SIP, GBU	4-SIP, GBU
Product Status	Obsolete	Not For New Designs	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For RoHS3 Compliant Designs: RS403GL-BP provides the closest functional equivalent to RS403L with identical electrical ratings and improved RoHS3 compliance. Operating temperature extends to 150°C, providing additional thermal margin.

For Active Product Status: GBU402-G offers exact current and voltage matching with active product status from Comchip Technology. This part maintains 200V peak reverse voltage and 4A average rectified current specifications.

For Increased Current Capacity: GBU602-G (6A) and GBU802-G (8A) are suitable where circuit design permits higher current ratings while maintaining 200V voltage specification. These parts provide design flexibility for applications requiring additional current headroom.

For Legacy System Maintenance: RS403GL-BP remains the preferred substitute for direct replacement in existing RS403L applications, as it preserves the RS-4L package footprint and maintains backward compatibility.

Frequently Asked Questions (FAQ)

Q: Can GBU series parts directly replace RS403L in existing designs? A: GBU series parts (GBU2502-G, GBU402-G, GBU602-G, GBU802-G) are electrically compatible as single-phase bridge rectifiers with 200V peak reverse voltage. Package footprints differ (GBU vs. RS-4L), requiring PCB layout verification. RS403GL-BP provides identical RS-4L package compatibility.

Q: What is the difference between RS403GL-BP and RS403L? A: RS403GL-BP maintains identical electrical specifications (200V, 4A) and RS-4L package configuration. Key differences include RoHS3 compliance (versus non-compliant RS403L), extended operating temperature range (-55°C to 150°C versus -55°C to 125°C), and reduced reverse leakage current (5 µA versus 10 µA at 200V).

Q: Are higher current-rated parts (GBU602-G, GBU802-G) suitable for 4A applications? A: Yes. Higher current ratings indicate increased capacity. GBU602-G (6A) and GBU802-G (8A) operate safely at 4A load levels. Selection depends on circuit requirements and thermal design considerations.

Q: What packaging considerations apply to GBU series substitutes? A: GBU series parts use a 4-SIP GBU package, differing from RS-4L. Verify PCB footprint compatibility before substitution. RS403GL-BP uses the identical RS-4L package for direct board-level replacement.

Q: Which substitute part is recommended for new designs? A: GBU402-G or GBU2502-G are recommended for new designs, as both maintain active product status and RoHS3 compliance. GBU402-G provides exact current matching (4A), while GBU2502-G offers 4.2A capacity.

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