VBO55-18NO7 Equivalent & Substitute Parts

Part Overview

The VBO55-18NO7 is a single-phase bridge rectifier manufactured by IXYS, rated for 1.8 kV peak reverse voltage with 55 A average rectified current. This component is designed for chassis mount applications in the FO-T-A package. The part is currently listed as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

VBO55-18NO7

IXYSIn Stock: 1122VBO55-18NO7 Datasheet

Current PartRFQ

VBO65-18NO7

IXYSIn Stock: 881VBO65-18NO7 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute components for the VBO55-18NO7 are identified based on strict electrical and mechanical compatibility criteria. The following parameters must remain constant or be exceeded without degradation:

• Voltage - Peak Reverse (Max): Must equal or exceed 1.8 kV
• Diode Type: Must be Single Phase
• Technology: Must be Standard
• Package / Case: Must be FO-T-A
• Mounting Type: Must be Chassis Mount
• Operating Temperature Range: Must cover -40°C to 150°C minimum

Current - Average Rectified (Io) may be equal to or greater than 55 A, provided all other electrical characteristics remain compatible. Forward voltage and reverse leakage characteristics must not introduce performance degradation in the target application circuit.

Parameter Comparison

Engineering Selection Recommendations

The VBO65-18NO7 serves as a direct substitute for the VBO55-18NO7 based on electrical and mechanical parameter alignment. Both components share identical voltage ratings, package specifications, and thermal operating ranges. The VBO65-18NO7 provides increased current capacity (65 A versus 55 A) and improved forward voltage characteristics (1.4 V versus 1.6 V @ 150 A), making it suitable for applications requiring the original part's specifications.

The VBO65-18NO7 holds Active product status and maintains ROHS3 compliance, providing long-term availability and regulatory alignment. Both parts carry REACH Unaffected status and identical ECCN and HTSUS classifications, ensuring consistent supply chain and compliance documentation.

Frequently Asked Questions (FAQ)

Q: Can the VBO65-18NO7 replace the VBO55-18NO7 in existing designs?

A: Yes. The VBO65-18NO7 meets or exceeds all critical electrical parameters of the VBO55-18NO7, including voltage rating, temperature range, and package specifications. The increased current rating and lower forward voltage represent performance improvements compatible with circuits designed for the original part.

Q: Are there package compatibility concerns?

A: No. Both components use the FO-T-A package with identical chassis mount specifications, ensuring mechanical and thermal interface compatibility without modification.

Q: What is the significance of the product status difference?

A: The VBO55-18NO7 is obsolete, indicating discontinued manufacturing and limited availability. The VBO65-18NO7 is active, ensuring reliable long-term supply and continued manufacturer support.

Q: Do compliance certifications differ between these parts?

A: The VBO65-18NO7 includes ROHS3 compliance certification, whereas the VBO55-18NO7 does not specify this status. Both parts maintain identical REACH and export classification status.