FS6US Coaxial Connector - Equivalent & Substitute Parts

Part Overview

The FS6US is an F-type coaxial connector manufactured by Belden Inc., designed for RF applications requiring universal compatibility with RG6 coaxial cable. This nickel-plated connector is classified as obsolete, indicating it is no longer in active production. Due to its obsolete status, identifying equivalent substitute parts is essential for ongoing system maintenance, repairs, and component sourcing. The substitute part FSNS6U-25 provides a direct functional replacement while maintaining compatibility with the same electrical and mechanical specifications.

Substiute Parts

FS6US

Belden Inc.In Stock: 695FS6US Datasheet

Current PartRFQ

FSNS6U-25

Belden Inc.In Stock: 1245FSNS6U-25 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part FSNS6U-25 is qualified as a direct equivalent based on the following substitution criteria:

Electrical Compatibility: Both parts are F-type connectors designed for RF coaxial applications with identical ECCN (EAR99) and HTSUS (8536.69.4010) classifications, confirming equivalent electrical performance and regulatory standing.

Mechanical Compatibility: Both connectors are specified for RG6 universal cable compatibility with nickel plating, ensuring mechanical fit and corrosion resistance are maintained.

Functional Equivalence: Both parts serve the identical function as F-type coaxial connectors within the same product category, with no functional differentiation in their core RF connector design.

Regulatory Compliance: Both parts maintain REACH Unaffected status, confirming equivalent environmental and safety compliance profiles.

The primary distinction is product status: FS6US is obsolete while FSNS6U-25 is active production, making FSNS6U-25 the recommended sourcing option for new applications and ongoing inventory replenishment.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: FSNS6U-25 is the recommended substitute for FS6US applications. This part maintains full electrical and mechanical compatibility while offering the advantage of active production status, ensuring reliable long-term availability and supply chain continuity.

Compliance Basis: Both parts carry identical regulatory classifications (ECCN EAR99, HTSUS 8536.69.4010) and REACH Unaffected status, confirming equivalent compliance profiles for export, import, and environmental requirements.

Packaging Consideration: FSNS6U-25 is supplied in 25-pack bulk packaging, whereas FS6US was supplied in loose bulk format. Procurement planning should account for this packaging difference when calculating order quantities for component-level requirements.

Inventory Planning: With FS6US classified as obsolete and FSNS6U-25 in active production with higher current inventory levels (1177 Pcs vs. 665 Pcs), transitioning to FSNS6U-25 aligns with standard supply chain best practices for long-term system support.

Frequently Asked Questions (FAQ)

Q: Can FSNS6U-25 be used as a direct replacement for FS6US in existing installations?

A: Yes. Both connectors are F-type coaxial connectors with identical RG6 universal cable compatibility, nickel plating, and RF electrical specifications. They are mechanically and electrically interchangeable.

Q: What is the difference between FS6US and FSNS6U-25?

A: The primary difference is product status: FS6US is obsolete while FSNS6U-25 is in active production. FSNS6U-25 also includes a 25-pack quantity designation in its part number. All electrical, mechanical, and regulatory parameters are equivalent.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts share identical REACH status (REACH Unaffected), ECCN classification (EAR99), and HTSUS codes (8536.69.4010), confirming equivalent regulatory and compliance standing.

Q: Does the 25-pack packaging of FSNS6U-25 affect its compatibility?

A: No. The packaging designation reflects the quantity supplied per unit order, not the connector specifications. Individual connectors from the 25-pack are identical to the loose bulk format of FS6US.

Q: Why is FS6US listed as obsolete?

A: Obsolete status indicates the part is no longer manufactured. FSNS6U-25 represents the active production equivalent, ensuring continued availability for system maintenance and new installations.