VBO20-12AO2 Equivalent & Substitute Parts

Part Overview

The VBO20-12AO2 is a single-phase bridge rectifier manufactured by IXYS, rated for 1.2 kV peak reverse voltage with 31 A average rectified current. This component utilizes avalanche technology and features a QC Terminal mounting type in a 4-Square FO-A package. The part is currently classified as obsolete, making identification of suitable substitute components essential for ongoing system maintenance and new design implementations where equivalent performance is required.

Substiute Parts

VBO20-12AO2

IXYSIn Stock: 813VBO20-12AO2 Datasheet

Current PartRFQ

VBO25-16AO2

IXYSIn Stock: 5280VBO25-16AO2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the VBO20-12AO2 is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Diode Type: Single Phase
• Technology: Avalanche
• Mounting Type: QC Terminal
• Package / Case: 4-Square, FO-A
• Operating Temperature Range: -40°C ~ 150°C (TJ)

Allowable Parameter Variations:

• Voltage - Peak Reverse (Max): Equal to or greater than 1.2 kV
• Current - Average Rectified (Io): Equal to or greater than 31 A
• Voltage - Forward (Vf) (Max) @ If: Equal to or lower than 1.8 V @ 55 A
• Current - Reverse Leakage @ Vr: Equal to or lower than 300 µA at the respective voltage rating

The VBO25-16AO2 meets all mandatory compatibility criteria and satisfies the allowable parameter variations, qualifying it as a direct substitute for the obsolete VBO20-12AO2.

Parameter Comparison

Engineering Selection Recommendations

The VBO25-16AO2 is the qualified substitute for the obsolete VBO20-12AO2 based on the following factors:

Product Availability: The VBO20-12AO2 is obsolete with no active manufacturing. The VBO25-16AO2 is actively produced by IXYS, ensuring long-term supply chain continuity.

Regulatory Compliance: Both components maintain ROHS3 compliance and REACH unaffected status, satisfying current environmental and regulatory requirements.

Electrical Performance: The VBO25-16AO2 provides enhanced electrical ratings across all critical parameters. The higher voltage rating (1.6 kV vs. 1.2 kV) and current capacity (38 A vs. 31 A) ensure compatibility with existing circuit designs while providing additional performance margin. The lower forward voltage drop (1.36 V vs. 1.8 V @ 55 A) reduces power dissipation.

Physical and Thermal Compatibility: Identical mounting type, package configuration, and operating temperature range ensure direct mechanical and thermal compatibility without circuit board redesign.

Frequently Asked Questions (FAQ)

Q: Can the VBO25-16AO2 directly replace the VBO20-12AO2 without circuit modifications?

A: Yes. The VBO25-16AO2 maintains identical mounting type (QC Terminal), package configuration (4-Square, FO-A), and operating temperature range (-40°C ~ 150°C). The enhanced electrical ratings are backward compatible with applications designed for the VBO20-12AO2.

Q: What are the key differences between these two components?

A: The VBO25-16AO2 provides higher voltage rating (1.6 kV vs. 1.2 kV), higher current capacity (38 A vs. 31 A), and lower forward voltage drop (1.36 V vs. 1.8 V @ 55 A). These represent performance improvements rather than functional differences.

Q: Is the VBO25-16AO2 available in the same package as the VBO20-12AO2?

A: Yes. Both components use the 4-Square FO-A package with QC Terminal mounting, ensuring identical footprint and mechanical compatibility.

Q: What is the product status difference between these parts?

A: The VBO20-12AO2 is obsolete and no longer manufactured. The VBO25-16AO2 is actively produced, providing reliable long-term availability for new designs and system maintenance.

Q: Are there any compliance or certification differences?

A: No. Both components are ROHS3 compliant, REACH unaffected, and carry identical environmental certifications.