FN376-6-21 Equivalent & Substitute Parts

Part Overview

The FN376-6-21 is a power entry connector receptacle manufactured by Schaffner EMC Inc., designed for IEC 320-C14 panel mount applications. This module-type receptacle features male blades with integrated EMI/RFI filtering for commercial applications. The part is currently classified as obsolete, making equivalent substitute parts necessary for ongoing system maintenance and new design implementations where this connector type is required.

Substiute Parts

FN376-6-21

Schaffner EMC Inc.In Stock: 964FN376-6-21 Datasheet

Current PartRFQ

FN378-6-21

Schaffner EMC Inc.In Stock: 1122FN378-6-21 Datasheet

SimilarRFQ

864-10/011

QualtekIn Stock: 938864-10/011 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FN376-6-21 is determined by the following critical parameters:

• Connector Style & Type: Must be IEC 320-C14 receptacle with male blades in module configuration
• Position Count: Must maintain 3 positions
• Filter Characteristics: Must include EMI/RFI filtering for commercial applications
• Current Rating: Filter current rating of 6A
• Mounting Configuration: Panel mount with flange mounting type
• Termination Method: Quick connect termination
• Fuse Support: Must accommodate fuses
• Panel Compatibility: Panel thickness range 0.031" ~ 0.126" (0.79mm ~ 3.20mm)
• Safety Compliance: UL94 V-2 flammability rating, IP40 ingress protection

Two substitute parts meet these criteria: FN378-6-21 (Schaffner EMC Inc.) and 864-10/011 (Qualtek). Both maintain functional equivalence across all specified electrical and mechanical parameters.

Parameter Comparison

Engineering Selection Recommendations

FN378-6-21 is the primary substitute for FN376-6-21. Both parts are manufactured by Schaffner EMC Inc. within the same FN 370 series, ensuring design continuity and compatibility. FN378-6-21 is currently in active production status with higher inventory availability (1078 pcs vs. 877 pcs). This part maintains identical electrical and mechanical specifications, including the 6A filter current rating, UL94 V-2 flammability rating, and IP40 ingress protection. The addition of CE certification to the existing CSA, UL, and VDE approvals provides expanded regulatory coverage. RoHS3 compliance offers enhanced environmental compliance compared to the original RoHS designation.

864-10/011 (Qualtek) serves as an alternative substitute when FN378-6-21 is unavailable. This part maintains the core IEC 320-C14 receptacle configuration with 3 positions, panel mount flange mounting, and quick connect termination. Qualtek's 864 series provides functional equivalence for applications requiring filtered power entry modules. The part includes CSA, UL, and VDE certifications and is ROHS3 compliant. Note that 864-10/011 includes an integrated on-off switch feature not present in the Schaffner parts, and specifies appliance inlet current rating of 4/6A at 250VAC with rectangular panel cutout dimensions of 28.96mm x 60.20mm.

Frequently Asked Questions (FAQ)

Q: Can FN378-6-21 directly replace FN376-6-21 in existing designs?

A: Yes. FN378-6-21 maintains identical specifications for connector style, type, position count, filter characteristics, current rating, mounting configuration, termination method, and fuse accommodation. Both parts are UL94 V-2 rated with IP40 ingress protection and compatible panel thickness ranges. The primary difference is product status (active vs. obsolete) and expanded certifications on the substitute.

Q: What are the key differences between FN378-6-21 and 864-10/011?

A: Both parts maintain IEC 320-C14 receptacle configuration with 3 positions and panel mount flange mounting. FN378-6-21 is manufactured by Schaffner EMC Inc. with fully specified electrical and mechanical parameters including 6A filter current rating, UL94 V-2 flammability rating, and IP40 ingress protection. 864-10/011 is manufactured by Qualtek and includes an integrated on-off switch feature. Qualtek's part specifies appliance inlet current rating of 4/6A at 250VAC with defined rectangular panel cutout dimensions (28.96mm x 60.20mm), while Schaffner parts specify variable panel cutout dimensions.

Q: Are there packaging differences between these substitutes?

A: FN376-6-21 is supplied without specified packaging. Both FN378-6-21 and 864-10/011 are supplied in trays. Packaging configuration should be confirmed with procurement requirements for your application.

Q: Which substitute should be selected for new designs?

A: FN378-6-21 is recommended for new designs due to active production status, higher inventory availability, and complete specification documentation. This part provides direct functional equivalence with expanded regulatory certifications (CE addition) and enhanced environmental compliance (ROHS3).

Q: Can 864-10/011 be used in applications where the on-off switch is not required?

A: 864-10/011 includes an integrated on-off switch feature. If switch functionality is not required in your application, this feature does not prevent electrical or mechanical compatibility. However, FN378-6-21 remains the preferred substitute when switch functionality is not needed, as it maintains identical feature sets to the original FN376-6-21.