FN258P-7-07 Equivalent & Substitute Parts

Part Overview

The FN258P-7-07 is a three-phase delta EMC/EMI line filter rated for 7 A with chassis mount configuration and terminal block termination. This component is classified as Not For New Designs, indicating it has been superseded in the manufacturer's product portfolio. Organizations requiring equivalent functionality for new applications or seeking compatible alternatives must evaluate substitute parts that maintain the same electrical characteristics and mechanical interface requirements.

Substiute Parts

FN258P-7-07

Schaffner EMC Inc.In Stock: 958FN258P-7-07 Datasheet

Current PartRFQ

FN3288-10-44-C34-R65

Schaffner EMC Inc.In Stock: 1059FN3288-10-44-C34-R65 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FN258P-7-07 is determined by the following critical parameters:

Filter topology must remain three-phase delta configuration to maintain system compatibility with three-phase power distribution networks. The two-stage configuration requirement ensures equivalent EMC/EMI filtering performance. Chassis mount with terminal block termination is mandatory for mechanical and electrical interface compatibility.

Current rating substitutes must equal or exceed 7 A to handle the same load requirements. Voltage ratings must accommodate the phase-to-ground (277 V minimum) and phase-to-phase (480 V minimum) specifications. Operating frequency range must include DC ~ 60Hz coverage. Temperature operating range must encompass the -25°C ~ 100°C specification or provide equivalent thermal performance within the application environment.

Regulatory compliance with RoHS3 and REACH requirements must be maintained. Approval agencies (CSA, ENEC, UR) provide additional validation of safety and performance standards.

Parameter Comparison

Engineering Selection Recommendations

The FN3288-10-44-C34-R65 is the designated substitute for the FN258P-7-07. Both components share identical filter topology (three-phase delta), configuration (two stage), mounting interface (chassis mount), and termination method (terminal block). Operating frequency coverage is equivalent across both parts.

The FN3288-10-44-C34-R65 provides higher current capacity (10 A versus 7 A) and elevated voltage ratings (305 V phase-to-ground, 530 V phase-to-phase versus 277 V and 480 V respectively). These increased ratings ensure compatibility with the original application while providing additional design margin. The extended operating temperature range (-40°C ~ 100°C) offers broader environmental performance compared to the original part.

The FN3288-10-44-C34-R65 maintains Active product status, ensuring ongoing availability and manufacturer support. Both components achieve ROHS3 compliance and REACH unaffected status, satisfying current regulatory requirements. Approval certifications (CSA, ENEC, UR) validate safety and performance standards for industrial applications including inverters and power drive systems.

Frequently Asked Questions (FAQ)

Q: Can the FN3288-10-44-C34-R65 directly replace the FN258P-7-07 in existing designs?

A: Yes. Both components share identical three-phase delta filter topology, two-stage configuration, chassis mount interface, and terminal block termination. The substitute part's higher current and voltage ratings are compatible with applications designed for the original part.

Q: What is the significance of the higher current rating (10 A vs. 7 A)?

A: The FN3288-10-44-C34-R65 is rated for 10 A, exceeding the original 7 A specification. This provides additional capacity margin and allows the substitute to handle the same or higher current loads without thermal stress.

Q: Are the voltage ratings compatible?

A: The FN3288-10-44-C34-R65 is rated for 305 V phase-to-ground and 530 V phase-to-phase, both exceeding the original 277 V and 480 V specifications. The substitute accommodates the original voltage requirements with additional design margin.

Q: Does packaging differ between these parts?

A: The FN258P-7-07 is supplied in Tray packaging, while the FN3288-10-44-C34-R65 is supplied in Box packaging. Packaging format does not affect electrical or mechanical compatibility.

Q: Are regulatory certifications maintained?

A: Both components are ROHS3 compliant and REACH unaffected. The FN3288-10-44-C34-R65 maintains the same approval agency certifications (CSA, ENEC, UR) required for industrial applications.

Q: Why is the original part marked "Not For New Designs"?

A: This designation indicates the FN258P-7-07 has been superseded in the manufacturer's portfolio. The FN3288-10-44-C34-R65 is the active equivalent, recommended for all new applications requiring three-phase delta EMC/EMI line filtering at these specifications.