FN5040-260-99 Equivalent & Substitute Parts

Part Overview

The FN5040-260-99 is a three-phase (Delta) EMC/EMI line filter rated for 260 A AC, designed for chassis mount applications with terminal block termination. This component is classified as obsolete and is no longer in active production. Due to its obsolete status, identifying equivalent substitute parts is necessary to maintain system functionality and ensure continued availability for applications requiring three-phase EMC/EMI filtering in regenerative motor drive systems.

Substiute Parts

FN5040-260-99

Schaffner EMC Inc.In Stock: 1005FN5040-260-99 Datasheet

Current PartRFQ

FN5420-300-99-E0XXT

Schaffner EMC Inc.In Stock: 1113FN5420-300-99-E0XXT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FN5040-260-99 is based on the following critical parameters:

• Filter Type: Three Phase (Delta) configuration must be maintained
• Configuration: Single Stage topology
• Mounting Type: Chassis Mount interface
• Termination Style: Terminal Block connection method
• Current Rating: Minimum 260 A capacity required
• Application Compatibility: Regenerative Motor Drive systems
• Regulatory Compliance: Approval by recognized agencies (cURus, CE, UKCA)

The substitute part FN5420-300-99-E0XXT meets these criteria with a higher current rating (302 A) and extended operating temperature range, while maintaining the same filter topology and mounting configuration.

Parameter Comparison

Engineering Selection Recommendations

The FN5420-300-99-E0XXT is the manufacturer-recommended substitute for the obsolete FN5040-260-99. Selection of this substitute is justified by:

• Active Product Status: The substitute is in active production, ensuring long-term availability and supply chain continuity
• Current Capacity: The 302 A rating exceeds the original 260 A requirement, providing operational margin
• Regulatory Compliance: The substitute carries CE, cURus, and UKCA certifications, expanding compliance coverage beyond the original cURus approval
• Extended Temperature Range: Operating range of -40°C ~ 70°C provides broader environmental compatibility compared to the original -25°C ~ 70°C specification
• Functional Equivalence: Identical filter topology, mounting configuration, and termination method ensure direct mechanical and electrical compatibility in regenerative motor drive applications

Frequently Asked Questions (FAQ)

Q: Can the FN5420-300-99-E0XXT be used as a direct replacement for the FN5040-260-99?

A: Yes. Both components share identical filter type (Three Phase Delta), configuration (Single Stage), mounting type (Chassis Mount), and termination style (Terminal Block). The substitute has a higher current rating (302 A vs. 260 A), which is compatible with the original application.

Q: What is the difference in inductance between these parts?

A: The FN5040-260-99 has 200µH inductance, while the FN5420-300-99-E0XXT has 146µH. This difference reflects the design optimization in the newer FN 5420 series for improved performance characteristics.

Q: Are there packaging differences between the main part and substitute?

A: The FN5040-260-99 is packaged with a dash designation, while the FN5420-300-99-E0XXT is supplied in Bulk packaging. Both use identical terminal block termination and chassis mount configuration.

Q: Does the substitute support the same frequency range?

A: The substitute specifies DC ~ 60Hz operating frequency. The original part does not provide frequency specifications in the available data. For applications requiring specific frequency operation, verify compatibility with your system requirements.

Q: What regulatory approvals does the substitute carry?

A: The FN5420-300-99-E0XXT carries CE, cURus, and UKCA certifications, providing broader regulatory coverage than the original FN5040-260-99, which carries only cURus approval.