FN3258H-42-47 Equivalent & Substitute Parts

Part Overview

The FN3258H-42-47 is a three-phase delta EMC/EMI line filter rated for 42 A operation across DC to 60 Hz frequency range. This chassis-mount filter is designed for general-purpose applications requiring electromagnetic compatibility filtering in three-phase power systems. The part is currently obsolete, making identification of active equivalent models essential for procurement and system continuity.

Substiute Parts

FN3258H-42-47

Schaffner EMC Inc.In Stock: 1203FN3258H-42-47 Datasheet

Current PartRFQ

FN3258H-42-33

Schaffner EMC Inc.In Stock: 997FN3258H-42-33 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The FN3258H-42-33 qualifies as a direct substitute for the FN3258H-42-47 based on the following critical parameters:

• Filter Type: Both are three-phase delta configuration
• Current Rating: Both rated for 42 A operation
• Voltage Specifications: Identical phase-to-ground (300 V) and phase-to-phase (520 V) ratings
• Frequency Range: Both operate across DC to 60 Hz
• Mounting and Termination: Identical chassis-mount configuration with terminal block termination
• Temperature Range: Matching operating temperature specification of -25°C to 100°C
• Regulatory Compliance: Both hold CSA, ENEC, and UR approvals

The primary distinction is product status: FN3258H-42-47 is obsolete while FN3258H-42-33 is active, with updated RoHS3 compliance and different packaging (tray versus unspecified).

Parameter Comparison

Engineering Selection Recommendations

The FN3258H-42-33 is the appropriate selection for applications currently specified with FN3258H-42-47. Both parts maintain identical electrical and mechanical specifications across all critical parameters: current capacity, voltage ratings, frequency range, mounting configuration, and termination style.

The FN3258H-42-33 offers the advantage of active product status, ensuring ongoing availability and support. The upgrade to RoHS3 compliance provides enhanced regulatory alignment with current environmental standards. Both parts carry equivalent international approvals (CSA, ENEC, UR), confirming suitability for the same application environments.

Packaging differences (tray for FN3258H-42-33 versus unspecified for FN3258H-42-47) do not affect functional compatibility and should be evaluated based on procurement and inventory management requirements.

Frequently Asked Questions (FAQ)

Q: Can FN3258H-42-33 directly replace FN3258H-42-47 in existing designs?

A: Yes. Both parts share identical electrical ratings (42 A, 300 V phase-to-ground, 520 V phase-to-phase), frequency range (DC ~ 60 Hz), mounting type (chassis mount), and termination style (terminal block). No circuit modifications are required.

Q: What is the significance of the product status change from Obsolete to Active?

A: Active status for FN3258H-42-33 ensures continued manufacturing, availability, and technical support. Obsolete parts may face supply constraints and limited manufacturer support.

Q: Are the regulatory approvals equivalent between these parts?

A: Yes. Both parts hold CSA, ENEC, and UR approvals. The FN3258H-42-33 includes updated RoHS3 compliance, which represents a regulatory enhancement rather than a functional change.

Q: Does packaging format affect electrical performance?

A: No. Packaging format (tray for FN3258H-42-33) is a logistics and handling consideration only. Electrical and mechanical performance remain identical.

Q: Are there any temperature or frequency limitations when substituting?

A: No. Both parts operate across the identical temperature range (-25°C to 100°C) and frequency range (DC ~ 60 Hz). No operational limitations apply to the substitution.