FN5040-1200-99 Equivalent & Substitute Parts

Part Overview

The FN5040-1200-99 is a three-phase (Delta) EMC/EMI line filter rated for 1.2 kA AC, designed for chassis mount applications with terminal block termination. This component is classified as obsolete and was originally specified for regenerative motor drive applications. Due to its obsolete status, equivalent substitute parts are necessary to maintain system functionality and ensure continued availability for new designs and replacements.

Substiute Parts

FN5040-1200-99

Schaffner EMC Inc.In Stock: 758FN5040-1200-99 Datasheet

Current PartRFQ

FN5420-630-99-E0XXT

Schaffner EMC Inc.In Stock: 775FN5420-630-99-E0XXT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FN5040-1200-99 is based on the following critical parameters that must be maintained or exceeded:

• Filter Type: Three Phase (Delta) configuration
• Configuration: Single Stage EMC/EMI filtering
• Mounting Type: Chassis Mount with Terminal Block termination
• Current Capacity: Minimum 1.2 kA rating
• Application Compatibility: Regenerative motor drive systems
• Regulatory Compliance: Maintained or enhanced certification status

The FN5420-630-99-E0XXT is identified as a manufacturer-recommended substitute. While this part operates at a lower current rating (630 A versus 1.2 kA), it maintains the core functional architecture and is from the same manufacturer's active product line, ensuring design continuity and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The FN5420-630-99-E0XXT is the manufacturer-recommended substitute for the obsolete FN5040-1200-99. Selection of this substitute is supported by the following factors:

• Active Product Status: The FN5420-630-99-E0XXT is an active product with confirmed inventory availability, ensuring long-term supply chain reliability.
• Enhanced Regulatory Compliance: The substitute carries CE, cURus, and UKCA certifications, providing broader regulatory coverage compared to the original part's cURus certification alone.
• Extended Operating Temperature Range: The substitute operates from -40°C to 70°C, providing improved performance in lower temperature environments.
• Maintained Functional Architecture: Both parts share identical filter type, configuration, mounting type, and termination style, ensuring mechanical and electrical compatibility within the system design envelope.
• Comparable Inductance: The inductance values are closely matched (70 µH versus 75 µH), maintaining EMI filtering characteristics.

Component selection must account for the current rating difference. The FN5420-630-99-E0XXT is rated for 630 A, which is lower than the original 1.2 kA specification. System design must verify that the actual operating current does not exceed 630 A.

Frequently Asked Questions (FAQ)

Q: Why is the FN5040-1200-99 being discontinued? A: The FN5040-1200-99 is classified as obsolete. The FN5420-630-99-E0XXT is the active product line replacement from Schaffner EMC Inc.

Q: Can the FN5420-630-99-E0XXT be used as a direct replacement? A: The FN5420-630-99-E0XXT maintains the same filter type, configuration, mounting type, and termination style. However, the current rating is 630 A compared to the original 1.2 kA. System design must confirm that operating current does not exceed 630 A.

Q: What are the key differences between these parts? A: The primary differences are current rating (1.2 kA versus 630 A), operating temperature range (-25°C ~ 70°C versus -40°C ~ 70°C), regulatory certifications (cURus only versus CE, cURus, UKCA), and inductance (75 µH versus 70 µH).

Q: Are the regulatory certifications compatible? A: Yes. The substitute carries all certifications of the original part (cURus) plus additional certifications (CE, UKCA), providing equal or enhanced regulatory compliance.

Q: What is the packaging difference? A: The original part is packaged as "-" (not specified), while the substitute is supplied in Bulk packaging.

Q: Are both parts suitable for regenerative motor drive applications? A: Yes. Both parts are specified for regenerative motor drive applications and maintain the same three-phase (Delta) EMC/EMI filtering architecture.