DBA250G Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DBA250G is a single-phase bridge rectifier manufactured by onsemi, rated for 600 V peak reverse voltage and 6 A average rectified current. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system maintenance and new design implementations. The through-hole mounting configuration and 4-Square GBPC-W package define its mechanical footprint and installation requirements.

Substiute Parts

DBA250G

onsemiIn Stock: 837DBA250G Datasheet

Current PartRFQ

PB66-BP

Micro Commercial CoIn Stock: 2010PB66-BP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DBA250G is determined by strict equivalence across the following electrical and mechanical parameters:

• Voltage Rating: Peak reverse voltage must equal or exceed 600 V
• Current Rating: Average rectified current must equal or exceed 6 A
• Diode Configuration: Single-phase bridge rectifier topology
• Technology Class: Standard rectifier technology
• Mounting: Through-hole installation capability
• Package Compatibility: Physical form factor suitable for 4-Square mounting applications

The PB66-BP from Micro Commercial Co meets all substitution criteria, maintaining identical voltage and current ratings while offering active product status and extended operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

The PB66-BP serves as a direct functional equivalent to the DBA250G for applications requiring 600 V, 6 A single-phase bridge rectification. Key selection factors include:

Product Status: The PB66-BP maintains active product status, ensuring continued availability and manufacturing support, whereas the DBA250G is obsolete.

Compliance: Both parts carry identical REACH and ECCN classifications (REACH Unaffected, EAR99), confirming regulatory equivalence. The PB66-BP additionally carries RoHS3 compliance certification.

Operating Temperature: The PB66-BP provides an extended operating temperature range (-55°C to 150°C) compared to the DBA250G specification (150°C maximum), offering broader thermal operational capability.

Package Considerations: While both components use 4-Square through-hole packages, the DBA250G employs GBPC-W packaging and the PB66-BP uses PB-6 packaging. Physical verification of mounting compatibility is required for existing PCB designs.

Frequently Asked Questions (FAQ)

Q: Can the PB66-BP directly replace the DBA250G in existing designs?

A: The PB66-BP meets all electrical specifications (600 V, 6 A, single-phase bridge rectifier). However, package differences (GBPC-W versus PB-6) require verification of PCB footprint compatibility and mounting hole alignment before implementation.

Q: What are the key electrical differences between these parts?

A: Both parts maintain identical peak reverse voltage (600 V), average rectified current (6 A), and reverse leakage current (10 µA @ 600 V). Forward voltage specifications differ slightly due to different test conditions (1.05 V @ 12.5 A for DBA250G versus 1.1 V @ 3 A for PB66-BP), but both remain within standard bridge rectifier performance parameters.

Q: Why is the DBA250G listed as obsolete?

A: Obsolete status indicates the manufacturer (onsemi) has discontinued production. The PB66-BP provides functional continuity for applications requiring equivalent rectification performance.

Q: Are there temperature-related constraints for substitution?

A: The PB66-BP supports a wider operating temperature range (-55°C to 150°C) compared to the DBA250G (150°C maximum). This provides additional thermal margin for applications operating at lower temperatures but does not restrict substitution in designs originally specified for the DBA250G.

Q: What compliance certifications apply to both parts?

A: Both the DBA250G and PB66-BP carry REACH Unaffected status and EAR99 ECCN classification. The PB66-BP additionally carries RoHS3 compliance, providing enhanced environmental regulatory alignment.