RS404GL-BP Bridge Rectifier Single Phase 400V 4A Equivalent & Substitute Parts

Part Overview

The RS404GL-BP is a single-phase bridge rectifier manufactured by Micro Commercial Co, rated for 400V 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.

Substiute Parts

RS404GL-BP

Micro Commercial CoIn Stock: 4862RS404GL-BP Datasheet

Current PartRFQ

GBU2504-G

Comchip TechnologyIn Stock: 942GBU2504-G Datasheet

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GBU404-G

Comchip TechnologyIn Stock: 990GBU404-G Datasheet

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GBU604-G

Comchip TechnologyIn Stock: 1040GBU604-G Datasheet

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GBU804-G

Comchip TechnologyIn Stock: 963GBU804-G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RS404GL-BP are selected based on strict electrical and mechanical compatibility criteria. The following parameters must align for direct substitution:

• Diode Type: Single Phase (all substitutes match)
• Technology: Standard (all substitutes match)
• Voltage - Peak Reverse (Max): 400 V (all substitutes match)
• Operating Temperature Range: -55°C ~ 150°C (all substitutes match)
• Mounting Type: Through Hole (all substitutes match)
• Package / Case: 4-SIP form factor (all substitutes use 4-SIP, GBU package variant)
• RoHS Status: ROHS3 Compliant (all substitutes match)

Current - Average Rectified (Io) varies among substitutes. The RS404GL-BP requires 4A minimum. Substitutes with equal or higher current ratings (GBU404-G at 4A, GBU604-G at 6A, GBU804-G at 8A, GBU2504-G at 25A) are electrically compatible for applications requiring 4A or less. Forward voltage characteristics differ slightly but remain within acceptable operating parameters for standard bridge rectifier applications.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain ROHS3 compliance and operate within the same temperature range as the RS404GL-BP. The primary distinction among substitutes is current rating capacity.

GBU404-G provides direct electrical equivalence at 4A, matching the RS404GL-BP current specification exactly. This part is manufactured by Comchip Technology and carries Active product status, ensuring long-term availability and supply chain stability.

GBU604-G and GBU804-G offer higher current ratings (6A and 8A respectively) while maintaining 400V voltage specification. These parts are suitable for applications where the RS404GL-BP operates below its maximum current rating, providing design margin and thermal headroom.

GBU2504-G operates at 25A and is appropriate only for applications where significantly higher current capacity is required. This part should be selected only when circuit design permits the higher current rating without introducing thermal or mechanical complications.

All substitute parts use the 4-SIP through-hole package form factor, ensuring mechanical compatibility with existing PCB layouts designed for the RS404GL-BP. Package footprints between RS-4L and GBU variants are compatible for standard through-hole mounting applications.

Frequently Asked Questions (FAQ)

Q: Can GBU404-G directly replace RS404GL-BP in all applications?

A: GBU404-G is electrically and mechanically compatible with RS404GL-BP. Both parts share identical voltage rating (400V), current rating (4A), operating temperature range (-55°C to 150°C), and through-hole 4-SIP package form factor. GBU404-G carries Active product status, ensuring continued availability.

Q: What is the difference between RS-4L and GBU package designations?

A: RS-4L and GBU are supplier-specific package designations for the same 4-SIP through-hole form factor. Both packages are mechanically and electrically compatible for PCB mounting and circuit operation.

Q: Can I use GBU804-G or GBU2504-G in place of RS404GL-BP?

A: Yes, GBU804-G (8A) and GBU2504-G (25A) are electrically compatible substitutes. Higher current ratings do not prevent operation in circuits designed for 4A. These parts are suitable when design requirements permit higher current capacity or when thermal performance improvements are beneficial.

Q: Are there any compliance or certification differences between RS404GL-BP and the GBU series substitutes?

A: All parts listed are ROHS3 compliant, REACH unaffected, and carry identical ECCN and HTSUS classifications. No compliance or certification barriers exist for substitution.

Q: Why is RS404GL-BP marked "Not For New Designs"?

A: This designation indicates the part has reached end-of-life status. Comchip Technology GBU series parts (GBU404-G, GBU604-G, GBU804-G, GBU2504-G) are Active products recommended for new designs and ongoing production applications.

Q: What is the significance of forward voltage (Vf) differences between parts?

A: Forward voltage differences (RS404GL-BP at 1.1V versus GBU series at 1.0V) are within normal operating tolerances for bridge rectifier applications. These minor variations do not affect circuit functionality or require design modifications.

Q: How do reverse leakage current specifications compare?

A: RS404GL-BP specifies 5 µA reverse leakage at 400V, while GBU series parts specify 10 µA. Both values are acceptable for standard rectification applications and do not present compatibility issues.