FN670-6-06 Equivalent & Substitute Parts

Part Overview

The FN670-6-06 is a single-phase EMC/EMI line filter manufactured by Schaffner EMC Inc., rated for 250VAC at 6A with 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 part is currently obsolete, making identification of active equivalent models essential for procurement and system continuity.

Key Parameters

Parameter	Value
Manufacturer	Schaffner EMC Inc.
Filter Type	Single Phase
Configuration	Two Stage
Voltage - Rated AC	250V
Current	6 A
Frequency - Operating	DC ~ 400Hz
Mounting Type	Chassis Mount
Termination Style	Quick Connect
Applications	General Purpose
Inductance	7mH

Substitute Part Grouping Explanation

Substitute parts for the FN670-6-06 are qualified based on the following core electrical and mechanical parameters:

Critical Matching Parameters:

Single-phase filter configuration
Two-stage topology
6A current rating
DC to 400Hz operating frequency range
Chassis-mount form factor
Quick-connect termination style
General-purpose application category

Voltage Compatibility Criteria: The FN670-6-06 operates at 250VAC. Substitute parts must support 250VAC operation. Parts supporting dual voltage (110V/250VAC) remain compatible as they encompass the 250VAC requirement.

Inductance Tolerance: Inductance values across the substitute group range from 970µH to 8mH. All values fall within acceptable operating parameters for this filter class and do not disqualify substitution.

Parameter Comparison

Parameter	FN670-6-06	FN2060-6-06	FN2070-6-06	FN2090-6-06
Manufacturer	Schaffner EMC Inc.	Schaffner EMC Inc.	Schaffner EMC Inc.	Schaffner EMC Inc.
Product Status	Obsolete	Active	Active	Active
Filter Type	Single Phase	Single Phase	Single Phase	Single Phase
Configuration	Two Stage	Two Stage	Two Stage	Two Stage
Voltage - Rated AC	250V	250V	110V, 250V	110V, 250V
Current	6 A	6 A	6 A	6 A
Frequency - Operating	DC ~ 400Hz	DC ~ 400Hz	DC ~ 400Hz	DC ~ 400Hz
Mounting Type	Chassis Mount	Chassis Mount	Chassis Mount	Chassis Mount
Termination Style	Quick Connect	Quick Connect	Quick Connect	Quick Connect
Applications	General Purpose	General Purpose	General Purpose	General Purpose
Inductance	7mH	970µH	7.8mH	8mH
Operating Temperature	Not specified	-25°C ~ 100°C	-25°C ~ 100°C	-20°C ~ 100°C
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Approval Agency	CSA, ENEC, UR	CE, CSA, ENEC, UR	CSA, ENEC, UR	CE, CSA, ENEC, UR

Engineering Selection Recommendations

All three substitute parts (FN2060-6-06, FN2070-6-06, FN2090-6-06) are active products from Schaffner EMC Inc. and maintain electrical and mechanical compatibility with the obsolete FN670-6-06.

FN2060-6-06: This part provides the closest electrical match with 250VAC single voltage rating. It carries CE, CSA, ENEC, and UR certifications, expanding regulatory coverage beyond the original part. Inductance of 970µH represents the lowest value in the substitute group.

FN2070-6-06: This part extends voltage capability to dual-voltage operation (110V/250VAC) while maintaining the original 7.8mH inductance profile, closely aligned to the FN670-6-06 specification of 7mH. Certifications include CSA, ENEC, and UR.

FN2090-6-06: This part also provides dual-voltage operation (110V/250VAC) with 8mH inductance and the broadest certification scope including CE, CSA, ENEC, and UR. Operating temperature range extends to -20°C minimum.

Selection among these three substitutes depends on system voltage requirements and regulatory certification needs for the target application.

Frequently Asked Questions (FAQ)

Q: Can FN2060-6-06, FN2070-6-06, and FN2090-6-06 be used interchangeably with FN670-6-06?

A: Yes, all three parts meet the core electrical and mechanical requirements: single-phase, two-stage configuration, 6A current rating, 250VAC operation, DC to 400Hz frequency range, chassis mounting, and quick-connect termination. All are manufactured by Schaffner EMC Inc. and maintain general-purpose application compatibility.

Q: What is the difference in inductance values, and does it affect substitution?

A: Inductance values range from 970µH (FN2060-6-06) to 8mH (FN2090-6-06), compared to 7mH in the original FN670-6-06. These variations fall within acceptable operating parameters for this filter class and do not disqualify substitution. Selection should be based on specific system EMI/EMC filtering requirements.

Q: Why do FN2070-6-06 and FN2090-6-06 support dual voltage (110V/250VAC)?

A: These parts are designed for broader market applicability. Dual-voltage capability encompasses the 250VAC requirement of the FN670-6-06 and adds 110VAC compatibility for systems operating at lower voltages. This does not compromise 250VAC operation.

Q: What packaging differences exist among the substitutes?

A: The FN670-6-06 packaging is listed as "-" (not specified). All three substitute parts are supplied in Tray packaging, which is standard for this component category and does not affect electrical or mechanical compatibility.

Q: Are there regulatory certification differences?

A: The FN670-6-06 carries CSA, ENEC, and UR certifications. FN2060-6-06 and FN2090-6-06 add CE certification. FN2070-6-06 maintains CSA, ENEC, and UR. Selection should align with target market regulatory requirements.

Q: What is the inventory status of these parts?

A: FN670-6-06 is obsolete with 832 pieces in stock. All three substitutes are active products with higher inventory levels: FN2060-6-06 (1203 pcs), FN2070-6-06 (1268 pcs), and FN2090-6-06 (1109 pcs).

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