FN258HVIT-100-35 Equivalent & Substitute Parts

Part Overview

The FN258HVIT-100-35 is a three-phase delta EMC/EMI line filter rated for 100 A operation with two-stage filtering configuration. This component is designed for chassis mount applications in inverters and power drive systems, operating across DC to 60 Hz frequency range with phase-to-phase voltage rating of 690 V and phase-to-ground voltage rating of 400 V.

This part carries a "Not For New Designs" status, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations. The substitute part FN3359-150-28 provides comparable filtering performance with enhanced current capacity and three-stage configuration.

Key Parameters

Parameter	FN258HVIT-100-35
Filter Type	Three Phase (Delta)
Configuration	Two Stage
Current Rating	100 A
Voltage - Phase to Ground/Neutral	400 V
Voltage - Phase to Phase	690 V
Frequency Range	DC ~ 60 Hz
Mounting Type	Chassis Mount
Termination Style	Terminal Block
Operating Temperature	-25°C ~ 100°C
RoHS Status	ROHS3 Compliant
Approval Agencies	CSA, ENEC, UR

Substitute Part Grouping Explanation

Substitution eligibility for the FN258HVIT-100-35 is determined by the following critical parameters:

Filter topology: Three-phase delta configuration
Mounting interface: Chassis mount capability
Operating frequency: DC to 60 Hz compatibility
Voltage class: Phase-to-phase and phase-to-ground ratings
Current capacity: Equal or greater than 100 A
Regulatory compliance: CSA, ENEC, or UR certification

The FN3359-150-28 qualifies as a substitute based on matching filter type, mounting method, frequency range, and regulatory certifications. The substitute provides increased current capacity (150 A) and enhanced filtering stages (three-stage versus two-stage), making it suitable for applications requiring the original part's performance envelope or greater.

Parameter Comparison

Parameter	FN258HVIT-100-35	FN3359-150-28	Compatibility Notes
Filter Type	Three Phase (Delta)	Three Phase (Delta)	Matched
Configuration	Two Stage	Three Stage	Substitute offers enhanced filtering
Current Rating	100 A	150 A	Substitute rated higher
Voltage - Phase to Ground/Neutral	400 V	300 V	Substitute rated lower
Voltage - Phase to Phase	690 V	520 V	Substitute rated lower
Frequency Range	DC ~ 60 Hz	DC ~ 60 Hz	Matched
Mounting Type	Chassis Mount	Chassis Mount	Matched
Termination Style	Terminal Block	Threaded Post (M10)	Different interface
Operating Temperature	-25°C ~ 100°C	-25°C ~ 100°C	Matched
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Matched
Approval Agencies	CSA, ENEC, UR	cURus, ENEC	Partial overlap (ENEC common)

Engineering Selection Recommendations

The FN258HVIT-100-35 is classified as "Not For New Designs," establishing the FN3359-150-28 as the forward-compatible alternative for new implementations.

Selection between these parts depends on system voltage requirements and termination interface compatibility:

The FN258HVIT-100-35 remains suitable for applications operating within 400 V phase-to-ground and 690 V phase-to-phase specifications with terminal block connection requirements.

The FN3359-150-28 is appropriate for systems operating within 300 V phase-to-ground and 520 V phase-to-phase specifications where threaded post (M10) termination is acceptable. The higher current rating (150 A) and three-stage configuration provide margin for applications at or near the original part's 100 A specification.

Both parts maintain ROHS3 compliance and ENEC certification, supporting regulatory requirements across industrial applications.

Frequently Asked Questions (FAQ)

Q: Can FN3359-150-28 directly replace FN258HVIT-100-35 in existing designs?

A: Direct replacement requires verification of three factors: system voltage compatibility (FN3359-150-28 is rated for lower voltage), termination interface compatibility (threaded post M10 versus terminal block), and approval agency requirements for your specific application.

Q: What is the significance of the "Not For New Designs" status on FN258HVIT-100-35?

A: This designation indicates the part is obsolete for new product development. Existing inventory remains available for maintenance and legacy system support, but new designs should specify FN3359-150-28 or equivalent active-status alternatives.

Q: Why does FN3359-150-28 have lower voltage ratings despite higher current capacity?

A: Current and voltage ratings are independent design parameters. The FN3359-150-28 is engineered for different voltage class applications. System voltage requirements determine which part is appropriate, regardless of current capacity differences.

Q: Are the approval certifications equivalent between these parts?

A: Both parts carry ENEC certification. FN258HVIT-100-35 includes CSA and UR approvals, while FN3359-150-28 includes cURus approval. Verify your application's specific certification requirements before substitution.

Q: What packaging format is used for both parts?

A: Both FN258HVIT-100-35 and FN3359-150-28 are supplied in tray packaging suitable for automated assembly and inventory management.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message