DB155G Bridge Rectifier Single Phase 600V 1.5A Equivalent & Substitute Parts

Part Overview

The DB155G is a single-phase bridge rectifier manufactured by GeneSiC Semiconductor, rated for 600V peak reverse voltage and 1.5A average rectified current. This component is classified as Active product status and is RoHS Compliant. Bridge rectifiers in this voltage and current class are used in AC-to-DC conversion applications requiring through-hole mounting in standard 4-EDIP packaging. Substitute parts become necessary when the primary part reaches end-of-life status, inventory constraints occur, or design flexibility is required across multiple qualified suppliers while maintaining electrical and mechanical compatibility.

Substiute Parts

DB155G

GeneSiC SemiconductorIn Stock: 2377DB155G Datasheet

Current PartRFQ

DB105-BP

Micro Commercial CoIn Stock: 25821DB105-BP Datasheet

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DF06-G

Comchip TechnologyIn Stock: 1443DF06-G Datasheet

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DF06M

onsemiIn Stock: 24393DF06M Datasheet

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DF206-G

Comchip TechnologyIn Stock: 5215DF206-G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DB155G is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Voltage - Peak Reverse (Max): 600V minimum
• Diode Type: Single Phase
• Technology: Standard
• Mounting Type: Through Hole
• Package / Case: 4-EDIP form factor with compatible pitch (0.321", 8.15mm)
• Operating Temperature Range: -55°C to 150°C (TJ)

Current Rating Consideration: The DB155G specifies 1.5A average rectified current. Substitute parts with equal or higher current ratings (1.5A or greater) are electrically compatible. Parts with lower current ratings (1.0A) operate within the same voltage and thermal envelope but with reduced current capacity.

Forward Voltage Characteristic: All qualified substitutes maintain Vf (Max) of 1.1V at their respective rated currents, ensuring consistent rectification performance.

Compliance Status: All substitute parts maintain RoHS3 compliance or equivalent environmental standards. The DB155G is RoHS Compliant; substitutes are ROHS3 Compliant, representing equivalent or enhanced compliance posture.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Recommended for New Designs):

DB105-BP and DF06-G are functionally equivalent substitutes with Active product status. Both maintain 600V peak reverse voltage, -55°C to 150°C operating range, and 4-EDIP (0.321", 8.15mm) package compatibility. The 1.0A current rating is lower than the DB155G's 1.5A specification; these parts are suitable for applications requiring maximum 1.0A average rectified current. Both suppliers (Micro Commercial Co and Comchip Technology) provide ROHS3 Compliant components with established supply chain availability.

DF206-G is an Active substitute with higher current capacity (2.0A), maintaining all voltage and thermal specifications. This part provides design margin for applications approaching the DB155G's 1.5A limit and is suitable for future current requirement increases. Package dimensions remain compatible (0.321", 8.15mm).

Secondary Substitute (Not Recommended for New Designs):

DF06M (onsemi) matches the DB155G's 1.5A current rating and reverse leakage characteristics (5µA @ 600V). However, this part carries Obsolete product status, indicating discontinued manufacturing. Additionally, the package pitch differs (0.300", 7.62mm versus 0.321", 8.15mm), requiring PCB layout verification before implementation. This part is suitable only for legacy system maintenance where original specifications must be preserved.

Compliance Consideration:

All substitute parts maintain RoHS3 compliance or equivalent environmental standards, ensuring regulatory compatibility with the DB155G's RoHS Compliant status.

Frequently Asked Questions (FAQ)

Q: Can DB105-BP or DF06-G replace DB155G in all applications?

A: DB105-BP and DF06-G are electrically compatible substitutes for applications requiring maximum 1.0A average rectified current. Both maintain 600V peak reverse voltage, identical forward voltage characteristics (1.1V), and the same operating temperature range (-55°C to 150°C). If your application requires the full 1.5A capacity of the DB155G, these 1.0A-rated parts are not suitable. For applications operating below 1.0A, substitution is valid.

Q: What is the difference between DB155G and DF206-G?

A: Both parts maintain 600V peak reverse voltage, -55°C to 150°C operating range, and compatible 4-EDIP packaging (0.321", 8.15mm). The primary difference is current rating: DB155G is rated for 1.5A average rectified current, while DF206-G is rated for 2.0A. DF206-G provides higher current capacity and is suitable for applications requiring up to 2.0A. Both are Active products with ROHS3 compliance.

Q: Why does DF06M have a different package pitch (0.300" vs 0.321")?

A: DF06M uses a 4-EDIP package with 0.300" (7.62mm) pitch, while DB155G and most other substitutes use 0.321" (8.15mm) pitch. This dimensional difference requires PCB footprint verification before implementation. DF06M is classified as Obsolete, making it unsuitable for new designs. For legacy system maintenance, physical fit testing on existing PCBs is necessary.

Q: Are all substitute parts RoHS compliant?

A: Yes. The DB155G is RoHS Compliant. All substitute parts (DB105-BP, DF06-G, DF06M, DF206-G) are ROHS3 Compliant, representing equivalent or enhanced environmental compliance standards.

Q: Which substitute should I use for new product designs?

A: For new designs requiring 1.5A capacity, use DF206-G (2.0A rated, Active status, compatible 0.321" pitch). For applications requiring 1.0A or less, DB105-BP or DF06-G are suitable. Avoid DF06M due to Obsolete status and non-standard package pitch. All recommended substitutes maintain Active product status and ROHS3 compliance.

Q: What is the reverse leakage difference between DB155G and substitutes?

A: DB155G and DF06M specify 5µA reverse leakage at 600V. DB105-BP, DF06-G, and DF206-G specify 10µA reverse leakage at 600V. This difference is within standard rectifier specifications and does not affect functional compatibility in typical AC-to-DC conversion applications.