VBO20-08NO2 Equivalent & Substitute Parts

Part Overview

The VBO20-08NO2 is a single-phase bridge rectifier manufactured by IXYS, rated for 800 V peak reverse voltage and 31 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 part features a 4-Square FO-A package with QC terminals and operates across a temperature range of -40°C to 150°C.

Substiute Parts

VBO20-08NO2

IXYSIn Stock: 1123VBO20-08NO2 Datasheet

Current PartRFQ

VBO25-12NO2

IXYSIn Stock: 1127VBO25-12NO2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the VBO20-08NO2 is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Voltage - Peak Reverse (Max): Must equal or exceed 800 V
• Current - Average Rectified (Io): Must equal or exceed 31 A
• Diode Type: Must be Single Phase
• Technology: Must be Standard

Mechanical Compatibility Criteria:

• Mounting Type: Must be QC Terminal
• Package / Case: Must be 4-Square, FO-A

Compliance & Environmental Criteria:

• RoHS Status: ROHS3 Compliant
• Operating Temperature Range: Must support -40°C ~ 150°C (TJ)

The VBO25-12NO2 meets all substitution criteria, offering higher voltage and current ratings within the same package form factor and mounting configuration.

Parameter Comparison

Engineering Selection Recommendations

The VBO25-12NO2 is the direct substitute for the obsolete VBO20-08NO2. Both components share identical mechanical interfaces (4-Square FO-A package with QC terminals), identical operating temperature ranges, and equivalent compliance certifications (ROHS3 Compliant, MSL 1).

The VBO25-12NO2 provides superior electrical performance with 1.2 kV peak reverse voltage capability versus 800 V, and 38 A average rectified current versus 31 A. The forward voltage drop is lower at 1.36 V compared to 1.8 V at 55 A, resulting in improved thermal efficiency.

Both parts maintain identical reverse leakage current specifications at their respective voltage ratings and support the full -40°C to 150°C operating temperature range. The active product status of the VBO25-12NO2 ensures long-term availability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the VBO25-12NO2 directly replace the VBO20-08NO2 in existing designs?

A: Yes. Both components use identical QC Terminal mounting and 4-Square FO-A package configurations. Electrical ratings of the VBO25-12NO2 exceed those of the VBO20-08NO2, providing backward compatibility for applications originally designed for the obsolete part.

Q: What are the key differences between these two bridge rectifiers?

A: The VBO25-12NO2 offers higher voltage (1.2 kV vs. 800 V) and current (38 A vs. 31 A) ratings. Forward voltage drop is lower (1.36 V vs. 1.8 V at 55 A). The VBO25-12NO2 is active in production, while the VBO20-08NO2 is obsolete.

Q: Are there any compliance or environmental differences?

A: No. Both parts are ROHS3 Compliant, carry MSL 1 (Unlimited) moisture sensitivity ratings, and support identical operating temperature ranges of -40°C to 150°C (TJ).

Q: Does the package form factor remain the same?

A: Yes. Both the VBO20-08NO2 and VBO25-12NO2 use the 4-Square FO-A package with QC Terminal mounting, ensuring mechanical compatibility without PCB redesign.

Q: Why is forward voltage lower in the VBO25-12NO2?

A: The VBO25-12NO2 exhibits lower forward voltage (1.36 V vs. 1.8 V at 55 A) due to improved semiconductor technology in the active product line, resulting in reduced power dissipation during operation.