FN351-36-33 Equivalent & Substitute Parts

Part Overview

The FN351-36-33 is a three-phase delta EMC/EMI line filter rated for 36 A chassis mount applications with terminal block termination. This component is designed for inverters and power drive systems operating across DC to 60 Hz frequencies. The part is currently obsolete, making identification of compatible substitutes essential for system maintenance and new designs requiring equivalent filtering performance.

Substiute Parts

FN351-36-33

Schaffner EMC Inc.In Stock: 1207FN351-36-33 Datasheet

Current PartRFQ

FN351H-36-33

Schaffner EMC Inc.In Stock: 883FN351H-36-33 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FN351-36-33 is determined by the following critical parameters:

• Filter type and configuration (three-phase delta, single stage)
• Current rating (36 A)
• Mounting type and termination style (chassis mount, terminal block)
• Frequency operating range (DC ~ 60 Hz)
• Voltage ratings (phase-to-ground and phase-to-phase)
• Approval certifications (CSA, ENEC, UR)
• RoHS compliance status

The FN351H-36-33 qualifies as a direct substitute based on matching filter architecture, current capacity, mounting configuration, and operating frequency. Enhanced voltage ratings and extended temperature range provide improved performance margins for the same application class.

Parameter Comparison

Engineering Selection Recommendations

The FN351H-36-33 is the qualified substitute for the obsolete FN351-36-33. Both components maintain identical filter architecture, current capacity, and mounting specifications. The FN351H-36-33 offers enhanced voltage ratings (300 V phase-to-ground, 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). Both parts retain CSA, ENEC, and UR certifications and ROHS3 compliance. The active product status of FN351H-36-33 ensures continued availability and supply chain support.

Frequently Asked Questions (FAQ)

Q: Can FN351H-36-33 directly replace FN351-36-33 in existing designs?

A: Yes. Both components share identical filter type, configuration, current rating, mounting type, and termination style. The FN351H-36-33 provides higher voltage ratings and extended temperature range, making it suitable for the same application class.

Q: What are the key differences between these parts?

A: The FN351H-36-33 features higher voltage ratings (300 V phase-to-ground and 520 V phase-to-phase compared to 250 V and 440 V) and an extended operating temperature range to 100°C. The FN351-36-33 is obsolete while FN351H-36-33 is active.

Q: Are both parts certified to the same standards?

A: Yes. Both FN351-36-33 and FN351H-36-33 carry CSA, ENEC, and UR approvals and are ROHS3 compliant.

Q: Does packaging differ between these parts?

A: Both parts are supplied in tray packaging.

Q: What applications are these filters designed for?

A: Both components are specified for inverters and power drive systems operating across DC to 60 Hz frequency ranges.