PBU805 Bridge Rectifier - Equivalent & Substitute Parts

Part Overview

The PBU805 is a single-phase bridge rectifier manufactured by Diodes Incorporated, rated for 600 V peak reverse voltage and 8 A average rectified current. This component is designed for Through Hole mounting in standard 4-SIP PBU package configuration. The product is currently classified as Obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations.

Substiute Parts

PBU805

Diodes IncorporatedIn Stock: 1226PBU805 Datasheet

Current PartRFQ

GBU806

MDDIn Stock: 35783GBU806 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute components for the PBU805 are identified based on the following critical electrical and mechanical parameters:

• Diode Type: Single Phase bridge rectifier configuration
• Voltage Rating: 600 V peak reverse voltage (minimum requirement)
• Current Capacity: Minimum 8 A average rectified current
• Package Type: Through Hole mounting, 4-SIP configuration
• Technology: Standard bridge rectifier technology
• Temperature Range: Operating capability within or exceeding -65°C ~ 150°C

The GBU806 qualifies as a direct substitute based on matching voltage rating (600 V), package configuration (4-SIP, Through Hole), technology type (Standard), and temperature operating range. Both components share identical RoHS3 compliance status and MSL rating.

Parameter Comparison

Engineering Selection Recommendations

The GBU806 from MDD is available as an active product with current manufacturing support, addressing the obsolescence status of the PBU805. Both components maintain ROHS3 compliance and identical moisture sensitivity ratings, supporting regulatory and environmental requirements.

Selection of the GBU806 requires verification that the application current requirement does not exceed 333 mA average rectified current, as this represents a significant reduction from the PBU805 specification of 8 A. The operating temperature minimum of -55°C for the GBU806 is 10°C higher than the PBU805; applications requiring operation below -55°C require alternative component selection.

The 4-SIP Through Hole package configuration is mechanically compatible between both components, supporting direct PCB layout substitution without redesign.

Frequently Asked Questions (FAQ)

Q: Can the GBU806 directly replace the PBU805 in all applications?

A: Direct replacement is limited by current rating. The GBU806 is rated for 333 mA average rectified current, while the PBU805 is rated for 8 A. Applications requiring current above 333 mA cannot use the GBU806. Verify your circuit current requirements before substitution.

Q: Are the packages physically compatible?

A: Both components use 4-SIP Through Hole package configuration. The physical form factor is compatible for PCB mounting without layout modification. Package designations differ (PBU vs. GBU) but represent the same physical footprint.

Q: What is the temperature operating range difference?

A: The PBU805 operates from -65°C to 150°C, while the GBU806 operates from -55°C to 150°C. The GBU806 has a 10°C higher minimum temperature limit. Applications requiring operation below -55°C must use the original PBU805 or identify alternative components.

Q: Are both components RoHS compliant?

A: Yes. Both the PBU805 and GBU806 are ROHS3 compliant with MSL rating of 1 (Unlimited), supporting equivalent regulatory and environmental requirements.

Q: Why is the GBU806 current rating significantly lower?

A: The GBU806 is specified at 333 mA average rectified current, representing a different product line within the bridge rectifier category. This specification difference reflects distinct design and thermal characteristics. Current application requirements must be verified against this lower rating.