RS402GL-BP Bridge Rectifier Single Phase 100V 4A Equivalent & Substitute Parts

Part Overview

The RS402GL-BP is a single-phase bridge rectifier manufactured by Micro Commercial Co, rated for 100V peak reverse voltage and 4A average rectified current. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. Finding equivalent substitute parts is necessary for maintenance, repair, and legacy system support where the original component is no longer readily available or when design flexibility permits component selection from active product lines.

Key Parameters

Parameter	Value
Diode Type	Single Phase
Technology	Standard
Voltage - Peak Reverse (Max)	100 V
Current - Average Rectified (Io)	4 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 4 A
Current - Reverse Leakage @ Vr	5 µA @ 50 V
Operating Temperature Range	-55°C ~ 150°C (TJ)
Mounting Type	Through Hole
Package / Case	4-SIP, RS-4L
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the RS402GL-BP is determined by the following critical parameters:

Voltage Rating: Peak reverse voltage must be 100V or higher
Current Rating: Average rectified current must meet or exceed 4A
Diode Type: Single phase bridge rectifier configuration
Technology: Standard bridge rectifier technology
Mounting Type: Through hole package
Package Compatibility: 4-SIP form factor (RS-4L or equivalent GBU package)
Temperature Range: Operating temperature range of -55°C to 150°C or better
Compliance: ROHS3 compliant, REACH unaffected

The substitute parts listed below meet all these criteria. Parts with current ratings exceeding 4A (such as GBU601-G at 6A and GBU801-G at 8A) are electrically compatible as they maintain the same voltage rating and package form factor while providing additional current capacity margin.

Parameter Comparison

Parameter	RS402GL-BP	GBU401-G	GBU2501-G	GBU601-G	GBU801-G
Manufacturer	Micro Commercial Co	Comchip Technology	Comchip Technology	Comchip Technology	Comchip Technology
Voltage - Peak Reverse (Max)	100 V	100 V	100 V	100 V	100 V
Current - Average Rectified (Io)	4 A	4 A	4.2 A	6 A	8 A
Voltage - Forward (Vf) (Max)	1.1 V @ 4 A	1 V @ 2 A	1 V @ 12.5 A	1 V @ 3 A	1 V @ 4 A
Current - Reverse Leakage @ Vr	5 µA @ 50 V	10 µA @ 100 V	10 µA @ 50 V	10 µA @ 100 V	5 µA @ 100 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, RS-4L	4-SIP, GBU	4-SIP, GBU	4-SIP, GBU	4-SIP, GBU
Product Status	Not For New Designs	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

GBU401-G provides a direct current-matched substitute at 4A with identical voltage rating and temperature range. This part is manufactured by Comchip Technology and maintains active product status, ensuring long-term availability and supply chain stability.

GBU2501-G offers 4.2A current capacity, providing minimal margin above the RS402GL-BP specification while maintaining all electrical and thermal parameters within compatible ranges.

GBU601-G and GBU801-G provide higher current ratings (6A and 8A respectively) and are suitable for applications where additional current capacity margin is beneficial. Both maintain the 100V voltage rating and identical temperature operating range.

All substitute parts are ROHS3 compliant and REACH unaffected, matching the compliance profile of the original RS402GL-BP. The transition from Micro Commercial Co to Comchip Technology represents a shift to an active manufacturer with established supply chain presence.

Frequently Asked Questions (FAQ)

Q: Can GBU801-G replace RS402GL-BP in a 4A application? A: Yes. The GBU801-G is rated for 8A average rectified current, which exceeds the 4A requirement of the RS402GL-BP. The 100V peak reverse voltage rating is identical. The higher current rating does not create incompatibility in a 4A circuit; it provides additional capacity margin.

Q: Are the RS-4L and GBU packages mechanically compatible? A: Both are 4-SIP through-hole packages. Physical pin spacing and lead configuration are compatible for PCB mounting. Verify footprint dimensions against your specific PCB design before implementation.

Q: What is the difference between GBU401-G and GBU2501-G? A: GBU401-G is rated for 4A average rectified current, matching the RS402GL-BP specification exactly. GBU2501-G is rated for 4.2A, providing a 5% margin above the original part. Both maintain 100V voltage rating and identical operating temperature range.

Q: Why do some substitute parts show higher reverse leakage current? A: Reverse leakage current specifications are measured at different voltage points. GBU401-G and GBU601-G specify leakage at 100V, while RS402GL-BP specifies at 50V. Leakage current increases with applied voltage; measurement at higher voltage reflects this characteristic.

Q: Is the RS402GL-BP still available for purchase? A: The RS402GL-BP is classified as "Not For New Designs" and has limited inventory (3329 pcs). For new applications or long-term supply assurance, selection of an active substitute part such as GBU401-G, GBU2501-G, GBU601-G, or GBU801-G is recommended.

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