Equivalent & Substitute Parts for FN660B-6-06

Part Overview

The FN660B-6-06 is a single-phase EMC/EMI line filter manufactured by Schaffner EMC Inc., rated for 250VAC at 6A with a two-stage configuration and quick connect termination. This chassis-mount filter is designed for general-purpose applications operating across DC to 400Hz frequency range.

The FN660B-6-06 is classified as obsolete. Identifying equivalent substitute parts ensures continued availability for maintenance, repair, and new design implementations where this filter specification remains applicable.

Substiute Parts

FN660B-6-06

Schaffner EMC Inc.In Stock: 1057FN660B-6-06 Datasheet

Current PartRFQ

FN2060B-6-06

Schaffner EMC Inc.In Stock: 1335FN2060B-6-06 Datasheet

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FN2090B-6-06

Schaffner EMC Inc.In Stock: 20277FN2090B-6-06 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FN660B-6-06 is determined by the following critical parameters:

• Voltage rating: 250VAC minimum
• Current rating: 6A minimum
• Filter type: Single phase
• Configuration: Two stage
• Mounting: Chassis mount
• Termination: Quick connect
• Frequency range: DC ~ 400Hz minimum coverage
• Operating temperature: Compatibility with -25°C ~ 100°C range

The substitute parts FN2060B-6-06 and FN2090B-6-06 satisfy these core electrical and mechanical requirements. Both are active-status products from Schaffner EMC Inc. with identical current, voltage, mounting, and termination specifications. Differences in inductance values and temperature ranges are secondary parameters that do not preclude substitution for applications within the specified operating envelope.

Parameter Comparison

Engineering Selection Recommendations

Both FN2060B-6-06 and FN2090B-6-06 are active-status products with current manufacturing support and enhanced compliance certifications (ROHS3 and CE marking). The FN660B-6-06, being obsolete, should be replaced with one of these alternatives for new designs and ongoing procurement.

FN2060B-6-06 maintains the 250VAC single voltage rating of the original part with inductance of 970µH and identical temperature range (-25°C ~ 100°C). This part provides direct functional equivalence with minimal design impact.

FN2090B-6-06 offers dual voltage capability (110V and 250VAC) with higher inductance (8mH) and a slightly reduced lower temperature limit (-20°C vs. -25°C). The expanded voltage rating provides additional application flexibility without compromising 250VAC operation.

Frequently Asked Questions (FAQ)

Q: Can FN2060B-6-06 and FN2090B-6-06 be used interchangeably with FN660B-6-06?

A: Both parts meet the core electrical specifications (6A, 250VAC, DC ~ 400Hz, two-stage single-phase configuration) and mechanical requirements (chassis mount, quick connect). Selection between them depends on application-specific inductance requirements and voltage range needs.

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

A: FN660B-6-06 specifies 750µH, FN2060B-6-06 specifies 970µH, and FN2090B-6-06 specifies 8mH. Inductance affects filter attenuation characteristics. Applications sensitive to specific inductance values should be evaluated against circuit requirements.

Q: Does the FN2090B-6-06 dual voltage rating affect 250VAC operation?

A: No. The FN2090B-6-06 is rated for both 110V and 250VAC operation. At 250VAC, it functions identically to single-voltage-rated alternatives.

Q: What is the packaging difference?

A: FN660B-6-06 packaging is not specified. Both FN2060B-6-06 and FN2090B-6-06 are supplied in tray packaging. Verify tray compatibility with receiving and assembly processes.

Q: Are there compliance differences?

A: FN2060B-6-06 and FN2090B-6-06 include CE marking and ROHS3 compliance, exceeding the original FN660B-6-06 certifications (RoHS Compliant, CSA, ENEC, UR). Both maintain CSA, ENEC, and UR approvals.

Q: What is the operating temperature consideration?

A: FN660B-6-06 and FN2060B-6-06 operate from -25°C to 100°C. FN2090B-6-06 operates from -20°C to 100°C. Applications requiring operation below -20°C should use FN2060B-6-06.