DB151G Bridge Rectifier Single Phase 50V 1.5A Equivalent & Substitute Parts

Part Overview

The DB151G is a single-phase bridge rectifier diode manufactured by GeneSiC Semiconductor, rated for 50V peak reverse voltage and 1.5A average rectified current. This component is classified as Active product status and is RoHS Compliant. The DB151G is packaged in a 4-EDIP through-hole configuration suitable for standard PCB assembly applications.

Substitute parts become necessary when the primary component reaches end-of-life status, inventory constraints occur, or design flexibility is required across multiple suppliers. The following equivalent parts maintain electrical compatibility within the specified parameter ranges while offering alternative sourcing options.

Substiute Parts

DB151G

GeneSiC SemiconductorIn Stock: 816DB151G Datasheet

Current PartRFQ

DB101-BP

Micro Commercial CoIn Stock: 1568DB101-BP Datasheet

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DF005-G

Comchip TechnologyIn Stock: 2024DF005-G Datasheet

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DF005M

Fairchild SemiconductorIn Stock: 2728DF005M Datasheet

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DF005M

Fairchild SemiconductorIn Stock: 2728DF005M Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DB151G is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Voltage - Peak Reverse (Max): 50V minimum
• Diode Type: Single Phase
• Technology: Standard
• Mounting Type: Through Hole
• Package / Case: 4-EDIP form factor

Current Rating Consideration: The DB151G operates at 1.5A average rectified current. Substitute parts with lower current ratings (1.0A) are electrically compatible but operate at reduced capacity. Parts with equal or higher current ratings provide direct substitution without derating.

Electrical Performance: Forward voltage (Vf) and reverse leakage current specifications must remain within acceptable ranges for the application. All identified substitutes maintain Vf at 1.1V maximum and reverse leakage within 10µA at 50V, ensuring functional equivalence.

Temperature Operating Range: All substitute parts operate within -55°C to 150°C (TJ), with DF005M extending the lower limit to -65°C. This parameter does not restrict substitution.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: DF005-G (Comchip Technology)

The DF005-G is the preferred substitute for the DB151G. Both components maintain identical voltage ratings (50V peak reverse), operate within the same temperature range (-55 to 150°C), and share the same 4-EDIP package footprint (0.321", 8.15mm). The DF005-G carries Active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment. The 1A current rating operates within acceptable design margins for applications originally specified at 1.5A.

Secondary Substitute: DB101-BP (Micro Commercial Co)

The DB101-BP provides electrical equivalence with identical voltage and temperature specifications. However, this part carries "Not For New Designs" product status, restricting its use to legacy system maintenance or replacement scenarios only. The DB101-BP is suitable only when direct form-factor compatibility and existing inventory constraints necessitate its selection.

Alternative Substitute: DF005M (Fairchild Semiconductor)

The DF005M offers extended lower temperature operation (-65°C minimum) compared to the DB151G (-55°C minimum). The package dimensions differ slightly (0.300" versus 0.321"), requiring PCB layout verification before implementation. The DF005M is Active status and suitable for applications requiring enhanced cold-temperature performance.

Selection Criteria Summary:

• Active product status preferred for new designs
• Voltage and temperature compatibility mandatory
• Package footprint must match PCB layout requirements
• Current derating acceptable when application permits

Frequently Asked Questions (FAQ)

Q: Can the DB151G be replaced with a 1A-rated substitute in a 1.5A application?

A: Substitutes with 1A ratings (DB101-BP, DF005-G, DF005M) operate at reduced current capacity. Replacement is permissible only if the actual circuit current demand does not exceed 1A. Circuit analysis must confirm that peak and average current requirements remain below the substitute part's 1A specification.

Q: What is the difference between the 4-EDIP packages in DF005-G and DF005M?

A: The DF005-G uses a 4-EDIP package with 0.321" (8.15mm) body width, matching the DB151G footprint exactly. The DF005M uses a 4-EDIP package with 0.300" (7.62mm) body width, requiring PCB layout verification to confirm pad spacing compatibility. Both are through-hole mounted but have different physical dimensions.

Q: Why is DB101-BP marked "Not For New Designs"?

A: The "Not For New Designs" status indicates that Micro Commercial Co has discontinued active development and long-term support for this part. While functionally equivalent, DB101-BP should be used only for legacy system repairs or replacement applications where existing inventory exists. New circuit designs should specify DF005-G or DF005M.

Q: Are all substitute parts RoHS compliant?

A: The DB151G and DF005-G are explicitly RoHS Compliant or ROHS3 Compliant. The DB101-BP is ROHS3 Compliant. The DF005M does not specify RoHS status in the provided data. Regulatory compliance verification is required before selecting DF005M for applications with RoHS requirements.

Q: What is the impact of reverse leakage current differences between parts?

A: The DB151G specifies 5µA reverse leakage at 50V, while substitutes specify 10µA. This doubling of leakage current is within acceptable ranges for standard bridge rectifier applications and does not restrict substitution. Applications with stringent leakage requirements should retain the DB151G or verify that 10µA leakage remains acceptable.

Q: Can these parts be used interchangeably on the same PCB?

A: Yes, provided the PCB layout accommodates the specific package dimensions. The DF005-G and DB151G share identical 4-EDIP dimensions (0.321", 8.15mm) and are directly interchangeable. The DF005M requires layout verification due to its 0.300" body width. All parts use through-hole mounting with the same pin configuration.