DBD250G Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DBD250G 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 DBD250G features a chassis mount configuration with a 4-square package format and operates at a maximum junction temperature of 150°C.

Substiute Parts

DBD250G

onsemiIn Stock: 979DBD250G Datasheet

Current PartRFQ

PB66-BP

Micro Commercial CoIn Stock: 2010PB66-BP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DBD250G are identified based on electrical parameter equivalence within the allowed tolerance range for bridge rectifier applications. The critical parameters determining substitutability are:

• Voltage - Peak Reverse (Max): 600 V minimum
• Current - Average Rectified (Io): 6 A minimum
• Diode Type: Single Phase
• Technology: Standard
• Current - Reverse Leakage @ Vr: 10 µA @ 600 V maximum
• Operating Temperature: 150°C maximum junction temperature

The PB66-BP from Micro Commercial Co meets these electrical specifications. While it features a through-hole mounting configuration and operates across an extended temperature range of -55°C to 150°C, the core electrical parameters remain compatible with the DBD250G application requirements.

Parameter Comparison

Engineering Selection Recommendations

The PB66-BP is a direct electrical equivalent to the DBD250G for single-phase bridge rectifier applications requiring 600 V and 6 A specifications. The PB66-BP holds active product status, ensuring continued availability and supply chain reliability compared to the obsolete DBD250G.

The primary design consideration is the transition from chassis mount to through-hole mounting. This change requires PCB layout modification but does not affect electrical performance. The PB66-BP's extended operating temperature range (-55°C to 150°C) provides additional thermal margin compared to the DBD250G's 150°C maximum.

The PB66-BP is RoHS3 compliant and carries REACH Unaffected status, meeting current regulatory requirements. Both components share identical ECCN (EAR99) and HTSUS (8541.10.0080) classifications.

Frequently Asked Questions (FAQ)

Q: Can the PB66-BP directly replace the DBD250G without circuit modification?

A: The PB66-BP provides electrical equivalence for the DBD250G. However, the mounting type differs: DBD250G uses chassis mount while PB66-BP uses through-hole configuration. PCB layout and mechanical mounting must be adapted accordingly.

Q: What is the significance of the forward voltage difference between these parts?

A: The DBD250G specifies 1.05 V @ 12.5 A while the PB66-BP specifies 1.1 V @ 3 A. These measurements are taken at different current levels. Both components meet the 600 V / 6 A application requirements with acceptable forward voltage characteristics for standard bridge rectifier operation.

Q: Are there compliance or regulatory differences between these parts?

A: The PB66-BP is RoHS3 compliant, while the DBD250G compliance status is not specified in the provided data. Both components are REACH Unaffected and share identical trade classification codes.

Q: Does the extended temperature range of the PB66-BP affect its suitability?

A: The PB66-BP's operating range of -55°C to 150°C encompasses the DBD250G's 150°C maximum. The extended lower temperature capability provides additional design flexibility without compromising performance in the DBD250G's original operating envelope.

Q: What packaging considerations apply to this substitution?

A: The DBD250G uses a 4-square chassis mount package. The PB66-BP uses a 4-square through-hole package with PB-6 supplier device package designation. Physical dimensions and lead configuration differ, requiring mechanical redesign for board integration.