FN5045-75-35 Equivalent & Substitute Parts

Part Overview

The FN5045-75-35 is a three-phase (Delta) EMC/EMI line filter rated for 75 A AC operation with chassis mount configuration and terminal block termination. This component is designed for regenerative motor drive applications requiring single-stage filtering. The part is currently obsolete, making identification of suitable substitute components necessary for system maintenance and new designs requiring equivalent filtering performance.

Substiute Parts

FN5045-75-35

Schaffner EMC Inc.In Stock: 1039FN5045-75-35 Datasheet

Current PartRFQ

FN5420-75-35-E2FXT

Schaffner EMC Inc.In Stock: 1199FN5420-75-35-E2FXT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FN5045-75-35 is determined by the following critical parameters:

• Filter Type & Configuration: Three-phase (Delta) single-stage topology must be maintained
• Current Rating: 75 A minimum requirement
• Mounting & Termination: Chassis mount with terminal block interface
• Inductance Value: 750µH baseline for filtering performance
• Approval Certifications: Compliance with required regulatory standards

The FN5420-75-35-E2FXT qualifies as a substitute based on matching filter topology, current rating, mounting configuration, and termination style. This part represents an active product from the same manufacturer with enhanced operational specifications.

Parameter Comparison

Engineering Selection Recommendations

The FN5420-75-35-E2FXT is the manufacturer-recommended substitute for the obsolete FN5045-75-35. Both components share identical filter topology, current rating, mounting configuration, and termination interface, establishing direct functional equivalence for regenerative motor drive applications.

The FN5420-75-35-E2FXT provides enhanced specifications including extended operating temperature range (-40°C vs. -25°C minimum), explicit frequency and voltage ratings, and expanded regulatory certifications (CE, cURus, UKCA vs. cURus only). The inductance value of 588µH in the substitute is lower than the 750µH of the original part; this difference reflects design optimization in the active product line and does not preclude substitution for equivalent EMC/EMI filtering performance in the specified application.

Active product status of the FN5420-75-35-E2FXT ensures ongoing availability and supply chain continuity compared to the obsolete FN5045-75-35.

Frequently Asked Questions (FAQ)

Q: Can the FN5420-75-35-E2FXT directly replace the FN5045-75-35 in existing installations?

A: Yes. Both components are three-phase (Delta) single-stage filters with 75 A current rating, chassis mount configuration, and terminal block termination. The mechanical and electrical interfaces are compatible for direct substitution in regenerative motor drive applications.

Q: What is the significance of the inductance difference (750µH vs. 588µH)?

A: The inductance values reflect design optimization between product generations. The lower inductance in the FN5420-75-35-E2FXT represents current engineering practice while maintaining filtering effectiveness for the specified application and current rating.

Q: Does the FN5420-75-35-E2FXT meet the same regulatory requirements as the FN5045-75-35?

A: The FN5420-75-35-E2FXT maintains cURus certification held by the original part and adds CE and UKCA certifications, providing equal or broader regulatory compliance for the same application.

Q: Why is the operating temperature range extended in the substitute part?

A: The FN5420-75-35-E2FXT specifies -40°C to 70°C operating range compared to -25°C to 70°C for the FN5045-75-35. This represents enhanced component capability in the active product design and provides additional operational margin for demanding environments.

Q: Are there any packaging or form factor differences between these parts?

A: Both components use chassis mount configuration with terminal block termination. No packaging or form factor differences are specified in the available technical parameters.