FN258P-16-29 Equivalent & Substitute Parts

Part Overview

The FN258P-16-29 is a three-phase delta EMC/EMI line filter rated for 16 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 This component is classified as Not For New Designs, indicating it has been superseded in the manufacturer's product portfolio.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 using this part in active systems require substitute options that maintain electrical and mechanical compatibility while meeting current design standards and compliance requirements.

Substiute Parts

FN258P-16-29

Schaffner EMC Inc.In Stock: 785FN258P-16-29 Datasheet

Current PartRFQ

FN3288-16-44-C35-R65

Schaffner EMC Inc.In Stock: 1179FN3288-16-44-C35-R65 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FN258P-16-29 is determined by strict equivalence across the following critical parameters:

• Filter Type: Three Phase (Delta) configuration must be maintained
• Current Rating: 16 A nominal current capacity
• Mounting Type: Chassis Mount form factor
• Termination Style: Terminal Block connection method
• Configuration: Two Stage filtering architecture
• Frequency Range: DC ~ 60Hz operating bandwidth
• Voltage Compatibility: Rated voltage must accommodate the application's phase-to-ground and phase-to-phase requirements

The FN3288-16-44-C35-R65 meets all substitution criteria as a direct equivalent within the Schaffner EMC product family.

Parameter Comparison

Engineering Selection Recommendations

The FN3288-16-44-C35-R65 is the designated substitute for the FN258P-16-29. Selection is based on the following engineering criteria:

• Electrical Equivalence: Both parts maintain identical current rating (16 A), filter type (three-phase delta), and operating frequency range (DC ~ 60Hz). The FN3288-16-44-C35-R65 provides higher voltage ratings (305 V phase-to-ground, 530 V phase-to-phase) compared to the original part (277 V, 480 V), ensuring compatibility with the original application while providing additional voltage margin.

• Mechanical Compatibility: Chassis mount configuration and terminal block termination are identical, enabling direct physical replacement without enclosure redesign.

• Compliance Status: Both parts are ROHS3 compliant and REACH unaffected. The substitute part carries Active product status, ensuring long-term availability and support compared to the Not For New Designs status of the original.

• Temperature Performance: The FN3288-16-44-C35-R65 operates across -40°C ~ 100°C, extending the lower temperature limit by 15°C relative to the original part's -25°C ~ 100°C range.

Frequently Asked Questions (FAQ)

Q: Can the FN3288-16-44-C35-R65 be used as a direct replacement for the FN258P-16-29?

A: Yes. Both parts share identical filter type (three-phase delta), current rating (16 A), configuration (two-stage), mounting type (chassis mount), and termination style (terminal block). The substitute part's higher voltage ratings and extended temperature range provide enhanced performance margins.

Q: What are the voltage differences between these parts?

A: The FN258P-16-29 is rated 277 V phase-to-ground and 480 V phase-to-phase. The FN3288-16-44-C35-R65 is rated 305 V phase-to-ground and 530 V phase-to-phase. The substitute accommodates higher voltage systems while remaining compatible with the original part's voltage specifications.

Q: Are there packaging differences?

A: Yes. The FN258P-16-29 is supplied in Tray packaging, while the FN3288-16-44-C35-R65 is supplied in Box packaging. This affects logistics and storage but does not impact electrical or mechanical performance.

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

A: The Not For New Designs status indicates the manufacturer has superseded this model. The FN3288-16-44-C35-R65 is the active replacement, recommended for all new applications and system redesigns.

Q: Are both parts RoHS compliant?

A: Yes. Both the FN258P-16-29 and FN3288-16-44-C35-R65 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.