FN258L-7-29 Equivalent & Substitute Parts

Part Overview

The FN258L-7-29 is a three-phase (Delta) EMC/EMI line filter rated for 7 A with chassis mount configuration and terminal block termination. This component is designed for inverters and power drive systems operating at DC ~ 60Hz frequencies. The part is classified as "Not For New Designs," indicating it has reached end-of-life status. Organizations currently using this filter in active systems may require equivalent or substitute components for maintenance, repair, or system upgrades.

Substiute Parts

FN258L-7-29

Schaffner EMC Inc.In Stock: 1222FN258L-7-29 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 FN258L-7-29 is determined by the following critical parameters:

• Filter Type: Three Phase (Delta) configuration must be maintained
• Configuration: Two Stage filtering architecture
• Mounting Type: Chassis Mount form factor
• Termination Style: Terminal Block connection method
• Operating Frequency: DC ~ 60Hz compatibility
• Applications: Inverters and Power Drive Systems
• Voltage Ratings: Phase-to-ground and phase-to-phase voltage compatibility
• Current Rating: Equal or higher amperage capacity
• Compliance: RoHS3 and regulatory certifications (CSA, ENEC, UR)

The FN3288-10-44-C34-R65 qualifies as a substitute based on matching filter type, configuration, mounting, termination, frequency range, and application requirements. The substitute provides higher current capacity (10 A versus 7 A) and elevated voltage ratings, making it suitable for systems requiring enhanced performance specifications.

Parameter Comparison

Engineering Selection Recommendations

The FN3288-10-44-C34-R65 is the designated substitute for the FN258L-7-29. Selection of this substitute is supported by the following factors:

• Product Status Alignment: The FN3288-10-44-C34-R65 maintains Active product status, ensuring continued availability and support, whereas the FN258L-7-29 is classified as Not For New Designs.
• Compliance Continuity: Both components maintain ROHS3 compliance and are manufactured by Schaffner EMC Inc., ensuring regulatory consistency.
• Performance Enhancement: The substitute provides increased current capacity (10 A) and higher voltage ratings (305 V phase-to-ground, 530 V phase-to-phase), offering improved headroom for system requirements.
• Functional Equivalence: Identical filter type, configuration, mounting, termination, and operating frequency ensure direct functional compatibility in inverter and power drive system applications.
• Temperature Range Extension: The substitute operates across an extended lower temperature range (-40°C minimum versus -25°C), providing broader environmental compatibility.

Frequently Asked Questions (FAQ)

Q: Can the FN3288-10-44-C34-R65 directly replace the FN258L-7-29 in existing systems?

A: Yes. Both components share identical filter type (Three Phase Delta), configuration (Two Stage), mounting type (Chassis Mount), termination style (Terminal Block), and operating frequency (DC ~ 60Hz). The substitute's higher current and voltage ratings are compatible with systems designed for the original part.

Q: What are the key differences between these two filters?

A: The FN3288-10-44-C34-R65 provides higher current capacity (10 A versus 7 A), elevated voltage ratings (305 V and 530 V versus 277 V and 480 V), extended lower operating temperature (-40°C versus -25°C), and Active product status compared to the end-of-life FN258L-7-29.

Q: Are there packaging differences between these parts?

A: Yes. The FN258L-7-29 is supplied in Tray packaging, while the FN3288-10-44-C34-R65 is supplied in Box packaging. Procurement and handling procedures may differ accordingly.

Q: Do both filters meet the same regulatory certifications?

A: Both components are ROHS3 compliant and manufactured by Schaffner EMC Inc. The FN258L-7-29 carries CSA, ENEC, and UR approvals. Certification details for the FN3288-10-44-C34-R65 should be verified against specific application requirements.

Q: Why should I consider the substitute if my system operates within the original part's specifications?

A: The FN258L-7-29 is classified as Not For New Designs, indicating end-of-life status. The FN3288-10-44-C34-R65 maintains Active product status, ensuring long-term availability, continued manufacturer support, and supply chain reliability for maintenance and future system upgrades.