FN420-2.5-13 Equivalent & Substitute Parts

Part Overview

The FN420-2.5-13 is a single-phase EMC/EMI line filter manufactured by Schaffner EMC Inc., rated for 250VAC at 2.5A with DC to 400Hz operating frequency range. This chassis-mount filter features quick-connect termination and is designed for general-purpose applications requiring electromagnetic compatibility filtering.

The FN420-2.5-13 carries a "Not For New Designs" product status, making identification of functionally equivalent alternatives necessary for ongoing procurement and new system development. Substitute parts must maintain compatibility across voltage rating, current capacity, frequency range, mounting configuration, and termination style while meeting equivalent regulatory approvals.

Substiute Parts

FN420-2.5-13

Schaffner EMC Inc.In Stock: 1154FN420-2.5-13 Datasheet

Current PartRFQ

PS02/A0320/63

BulginIn Stock: 867PS02/A0320/63 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the FN420-2.5-13 must satisfy the following criteria:

• Voltage rating of 250VAC (exact match required)
• Single-phase, single-stage filter configuration
• Chassis-mount with quick-connect termination
• Operating frequency range encompassing DC to 400Hz minimum
• Current rating equal to or greater than 2.5A
• RoHS3 compliance and equivalent regulatory approvals (CSA, ENEC, UL/UR/VDE)

The PS02/A0320/63 from Bulgin meets these substitution criteria. While its current rating of 3A exceeds the FN420-2.5-13 specification and its inductance value of 1.8mH differs from the original 3.4mH, both parameters remain within acceptable substitution boundaries for general-purpose EMC/EMI filtering applications. The operating frequency range of 50 ~ 400Hz encompasses the required 400Hz upper limit, and all regulatory certifications align with or exceed the original part's approval agencies.

Parameter Comparison

Engineering Selection Recommendations

The PS02/A0320/63 represents a direct functional substitute for the FN420-2.5-13 based on matching core electrical and mechanical specifications. The Bulgin part carries "Active" product status, ensuring long-term availability and supply continuity compared to the FN420-2.5-13's "Not For New Designs" designation.

The 3A current rating of the PS02/A0320/63 provides operational margin above the 2.5A requirement of the original specification. The inductance differential (1.8mH versus 3.4mH) reflects design variation between manufacturers but does not preclude substitution for general-purpose EMC/EMI filtering applications. Both parts maintain equivalent regulatory compliance through CSA, ENEC, and additional certifications (UL, VDE) on the Bulgin unit.

For applications requiring DC frequency operation, note that the PS02/A0320/63 specifies a 50Hz lower frequency limit, whereas the FN420-2.5-13 extends to DC. This distinction requires evaluation against specific application requirements.

Frequently Asked Questions (FAQ)

Q: Can the PS02/A0320/63 directly replace the FN420-2.5-13 in existing designs?

A: Yes, for applications operating within the 50 ~ 400Hz frequency range. The PS02/A0320/63 matches the voltage, current capacity, mounting configuration, and termination style of the original part. Applications requiring DC frequency operation require separate evaluation.

Q: Why does the PS02/A0320/63 have a higher current rating (3A vs 2.5A)?

A: Higher current ratings provide operational margin and do not compromise compatibility. The substitute part remains suitable for circuits designed for 2.5A operation.

Q: What is the significance of the inductance difference between the two parts?

A: Inductance values (3.4mH vs 1.8mH) reflect different filter designs between manufacturers. Both values are appropriate for single-stage EMC/EMI filtering in general-purpose applications. Specific circuit requirements may necessitate inductance verification.

Q: Are regulatory certifications equivalent between the two parts?

A: Both parts hold ROHS3 compliance and CSA/ENEC approvals. The PS02/A0320/63 includes additional UL and VDE certifications, providing broader regulatory coverage.

Q: What packaging considerations apply to substitution?

A: The FN420-2.5-13 is supplied in tray packaging. Packaging format for the PS02/A0320/63 should be confirmed during procurement to ensure compatibility with assembly and handling processes.