FN351-16-29 Equivalent & Substitute Parts

Part Overview

The FN351-16-29 is a three-phase delta EMC/EMI line filter rated for 16 A with chassis mount configuration and terminal block termination. This component is designed for inverters and power drive systems requiring electromagnetic compatibility filtering across DC to 60 Hz operating frequencies.

The FN351-16-29 is classified as obsolete. Locating active equivalent parts is necessary to ensure continued availability, supply chain reliability, and access to components with extended product lifecycle support.

Substiute Parts

FN351-16-29

Schaffner EMC Inc.In Stock: 841FN351-16-29 Datasheet

Current PartRFQ

FN351H-16-29

Schaffner EMC Inc.In Stock: 726FN351H-16-29 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FN351-16-29 is determined by the following critical parameters:

• Filter Type & Configuration: Three phase delta, single stage topology must be maintained
• Current Rating: 16 A nominal current capacity
• Mounting & Termination: Chassis mount with terminal block interface
• Frequency Operating Range: DC ~ 60 Hz minimum
• Regulatory Compliance: CSA, ENEC, UR certifications required

The FN351H-16-29 qualifies as a direct substitute based on matching filter type, current rating, mounting configuration, termination style, and operating frequency range. Both components share the same base product number (FN 351) and maintain equivalent mechanical and electrical interfaces.

Parameter Comparison

Engineering Selection Recommendations

The FN351H-16-29 is the qualified substitute for the obsolete FN351-16-29. Both components maintain identical filter topology, current capacity, mounting configuration, and termination interface. The FN351H-16-29 provides enhanced voltage ratings (300 V phase-to-ground and 520 V phase-to-phase versus 250 V and 440 V respectively) and extended operating temperature range (-25°C to 100°C versus -25°C to 85°C).

The FN351H-16-29 carries active product status with full regulatory compliance across CSA, ENEC, and UR certifications. ROHS3 compliance is maintained across both components.

Frequently Asked Questions (FAQ)

Q: Can the FN351H-16-29 be used as a direct replacement for the FN351-16-29?

A: Yes. Both components share identical filter type, current rating, mounting configuration, and termination style. The FN351H-16-29 provides higher voltage ratings and extended temperature range, making it suitable for the same mechanical and electrical interfaces.

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

A: The FN351H-16-29 features higher phase-to-ground voltage rating (300 V versus 250 V), higher phase-to-phase voltage rating (520 V versus 440 V), and extended operating temperature range (to 100°C versus 85°C). The FN351-16-29 is obsolete while the FN351H-16-29 is active.

Q: Are the packaging and terminal configurations identical?

A: Yes. Both components use tray packaging and terminal block termination style, ensuring compatibility with existing PCB layouts and assembly processes.

Q: What regulatory certifications apply to both parts?

A: Both the FN351-16-29 and FN351H-16-29 hold CSA, ENEC, and UR approvals and maintain ROHS3 compliance.

Q: Is the FN351H-16-29 suitable for applications originally designed for the FN351-16-29?

A: Yes, provided the application operates within the voltage and temperature specifications of the FN351H-16-29. The higher voltage ratings and extended temperature range of the FN351H-16-29 support broader application compatibility.