VBO20-16AO2 Equivalent & Substitute Parts

Part Overview

The VBO20-16AO2 is a single-phase bridge rectifier manufactured by IXYS, rated for 1.6 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 support and new design implementations.

Substiute Parts

VBO20-16AO2

IXYSIn Stock: 5306VBO20-16AO2 Datasheet

Current PartRFQ

VBO25-16AO2

IXYSIn Stock: 5280VBO25-16AO2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the VBO20-16AO2 is determined by the following critical parameters:

• Diode Type: Single Phase (must match)
• Technology: Avalanche (must match)
• Voltage - Peak Reverse (Max): 1.6 kV (must match)
• Mounting Type: QC Terminal (must match)
• Package / Case: 4-Square, FO-A (must match)
• Operating Temperature Range: -40°C ~ 150°C (TJ) (must match)

The VBO25-16AO2 qualifies as a direct substitute because it maintains identical specifications across all critical parameters. The primary difference is an increased average rectified current rating (38 A versus 31 A), which represents an uprating that does not compromise compatibility in applications designed for the original part.

Parameter Comparison

Engineering Selection Recommendations

The VBO25-16AO2 is the qualified substitute for the obsolete VBO20-16AO2. Both components maintain identical electrical and mechanical specifications across voltage, temperature, mounting, and package parameters. The VBO25-16AO2 carries Active product status, ensuring continued availability and supply chain support.

Both parts satisfy ROHS3 compliance and REACH unaffected status, meeting regulatory requirements for current manufacturing and deployment. The VBO25-16AO2 demonstrates improved forward voltage characteristics (1.36 V versus 1.8 V @ 55 A), which may provide thermal efficiency benefits in applications operating at rated current levels.

Frequently Asked Questions (FAQ)

Q: Can the VBO25-16AO2 directly replace the VBO20-16AO2 in existing designs?

A: Yes. The VBO25-16AO2 maintains identical voltage ratings, temperature range, mounting type, and package configuration. The increased current rating (38 A versus 31 A) does not create compatibility issues in applications designed for the original 31 A specification.

Q: What is the primary reason for substitution?

A: The VBO20-16AO2 is classified as obsolete. The VBO25-16AO2 is an active product from the same manufacturer with equivalent electrical and mechanical characteristics.

Q: Are there compliance differences between the two parts?

A: No. Both components are ROHS3 compliant and REACH unaffected. Regulatory status is identical.

Q: Does the improved forward voltage of the VBO25-16AO2 affect circuit operation?

A: The lower forward voltage (1.36 V versus 1.8 V @ 55 A) in the VBO25-16AO2 represents an improvement that reduces power dissipation. This does not create incompatibility; circuits designed for the original part will operate within specification with the substitute.

Q: Are the packages physically identical?

A: Yes. Both parts use the 4-Square, FO-A package with QC Terminal mounting. No mechanical modifications are required for substitution.