FN660B-20-06 Equivalent & Substitute Parts

Part Overview

The FN660B-20-06 is a single-phase EMC/EMI line filter rated for 250VAC at 20A with a two-stage configuration and quick connect termination. Designed for general-purpose applications operating across DC to 400Hz frequency range, this chassis-mount filter provides electromagnetic compatibility filtering for industrial and commercial equipment.

The FN660B-20-06 is classified as obsolete. Locating equivalent substitute parts is necessary to maintain system compatibility and ensure continued availability for replacement, repair, and new design implementations where this filter specification remains applicable.

Substiute Parts

FN660B-20-06

Schaffner EMC Inc.In Stock: 961FN660B-20-06 Datasheet

Current PartRFQ

FN2060B-20-06

Schaffner EMC Inc.In Stock: 1083FN2060B-20-06 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FN660B-20-06 is determined by strict equivalence across the following critical parameters:

• Voltage rating: 250VAC (exact match required)
• Current capacity: 20A (exact match required)
• Filter type: Single Phase (exact match required)
• Configuration: Two Stage (exact match required)
• Operating frequency range: DC ~ 400Hz (exact match required)
• Mounting type: Chassis Mount (exact match required)
• Termination style: Quick Connect (exact match required)
• Operating temperature range: -25°C ~ 100°C (exact match required)

The FN2060B-20-06 meets all substitution criteria. Both parts are manufactured by Schaffner EMC Inc. and share identical electrical and mechanical specifications across all critical parameters. The primary distinction is product status: FN660B-20-06 is obsolete while FN2060B-20-06 is active, with improved compliance certifications and enhanced packaging.

Parameter Comparison

Engineering Selection Recommendations

The FN2060B-20-06 is the direct substitute for the obsolete FN660B-20-06. Both parts satisfy identical electrical and mechanical requirements for 250VAC, 20A single-phase EMC/EMI filtering applications.

Selection of FN2060B-20-06 is supported by:

• Active product status ensuring long-term availability and supply chain continuity
• Expanded regulatory compliance including CE certification in addition to CSA, ENEC, and UR approvals
• Enhanced RoHS3 compliance versus RoHS compliance on the original part
• Improved packaging in tray format for handling and inventory management
• Identical functional performance across all critical operating parameters

Frequently Asked Questions (FAQ)

Q: Can FN2060B-20-06 directly replace FN660B-20-06 in existing applications?

A: Yes. Both parts are electrically and mechanically equivalent across all critical parameters: 250VAC rating, 20A current capacity, single-phase two-stage configuration, DC to 400Hz operating frequency, chassis mount, and quick connect termination. Direct substitution is valid.

Q: What is the difference in inductance between these parts?

A: FN660B-20-06 specifies 480µH inductance while FN2060B-20-06 specifies 600µH. Both values fall within acceptable ranges for the specified application category and do not affect substitution eligibility based on the provided parameters.

Q: Why is FN660B-20-06 listed as obsolete?

A: Product obsolescence reflects manufacturing discontinuation. FN2060B-20-06 represents the active successor product from Schaffner EMC Inc., offering equivalent functionality with current regulatory compliance and improved availability.

Q: Are there packaging differences between these parts?

A: FN660B-20-06 packaging is not specified in the technical data. FN2060B-20-06 is supplied in tray packaging, which provides standardized handling and storage for production environments.

Q: Do both parts meet the same regulatory certifications?

A: FN660B-20-06 holds CSA, ENEC, and UR approvals. FN2060B-20-06 includes these certifications plus CE marking, providing expanded regulatory coverage for European and international markets.