Amphenol RF 2FA1-NKSJ-C01-6 Equivalent & Substitute Parts

Part Overview

The Amphenol RF 2FA1-NKSJ-C01-6 is a Fakra Connector Jack with female socket configuration, designed for 50-ohm coaxial cable termination in RF applications. This SMB-style connector operates at frequencies up to 6 GHz and supports crimp termination for RG-174, RG-188, RG-188A, RG-316, LMR-100, and M17/119-RG174 cable groups. The connector features a latch lock fastening mechanism and is rated for 100 mating cycles.

The 2FA1-NKSJ-C01-6 carries an obsolete product status. Identifying equivalent and substitute parts is necessary to ensure continued availability, maintain design compatibility, and support ongoing production and field service requirements.

Substiute Parts

2FA1-NKSJ-C01-6

Amphenol RFIn Stock: 7132FA1-NKSJ-C01-6 Datasheet

Current PartRFQ

FA1-NKSJ-C01-6

Amphenol RFIn Stock: 1124FA1-NKSJ-C01-6 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2FA1-NKSJ-C01-6 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Connector Style: SMB, Fakra
• Connector Type: Jack, Female Socket
• Impedance: 50 Ohms
• Contact Termination: Crimp
• Shield Termination: Crimp
• Mounting Type: Free Hanging (In-Line)
• Fastening Type: Latch Lock
• Cable Group Compatibility: RG-174, 188, 188A, 316, LMR-100, M17/119-RG174
• Mating Cycles: 100
• Insertion Loss: 0.3 dB
• RoHS Status: ROHS3 Compliant

Allowable Variations: Substitute parts may differ in the following parameters while maintaining functional compatibility:

• Frequency - Max: Substitute parts operating at lower maximum frequencies remain compatible for applications within their frequency range
• Operating Temperature Range: Substitute parts with extended upper temperature limits provide enhanced capability
• Center Contact Material and Body Material: Material composition changes do not affect electrical performance when impedance and insertion loss specifications are maintained
• Body Finish and Plating: Surface treatment variations do not impact functional compatibility
• Product Status: Active status substitutes are preferred for obsolete parts to ensure continued availability

Parameter Comparison

Engineering Selection Recommendations

The FA1-NKSJ-C01-6 is the manufacturer-recommended substitute for the obsolete 2FA1-NKSJ-C01-6. Both connectors are manufactured by Amphenol RF and maintain identical electrical and mechanical specifications for the core functional parameters: connector style, type, impedance, termination method, mounting configuration, and insertion loss.

The substitute part carries active product status, ensuring long-term availability and continued manufacturing support. Both parts maintain ROHS3 compliance and REACH affected status, satisfying regulatory requirements for equivalent applications.

The FA1-NKSJ-C01-6 operates at a maximum frequency of 4 GHz compared to the 6 GHz specification of the original part. This represents a reduced frequency capability. Applications operating at frequencies below 4 GHz experience no functional limitation. Applications requiring operation above 4 GHz require evaluation against specific system frequency requirements.

The substitute part features an extended operating temperature range of -40°C to 115°C, compared to -40°C to 100°C for the original part, providing enhanced thermal capability for high-temperature environments.

Material composition differs between the parts: the substitute uses beryllium copper for the center contact and brass for the body, compared to phosphor bronze and zinc die cast in the original. These material changes do not affect electrical performance when impedance and insertion loss specifications remain constant.

Frequently Asked Questions (FAQ)

Q: Can the FA1-NKSJ-C01-6 be used as a direct replacement for the 2FA1-NKSJ-C01-6?

A: The FA1-NKSJ-C01-6 is the manufacturer-recommended substitute. Both connectors share identical connector style, type, impedance, termination method, mounting configuration, and insertion loss specifications. The substitute is suitable for applications operating at frequencies up to 4 GHz. Applications requiring operation above 4 GHz must evaluate the reduced frequency specification against system requirements.

Q: What is the difference in frequency capability between these parts?

A: The original 2FA1-NKSJ-C01-6 operates at frequencies up to 6 GHz. The substitute FA1-NKSJ-C01-6 operates at frequencies up to 4 GHz. For applications operating within the 4 GHz limit, this difference has no impact on performance. Applications requiring frequencies between 4 GHz and 6 GHz must assess compatibility with the reduced specification.

Q: Are both connectors compatible with the same cable types?

A: Yes. Both the 2FA1-NKSJ-C01-6 and FA1-NKSJ-C01-6 support identical cable group compatibility: RG-174, RG-188, RG-188A, RG-316, LMR-100, and M17/119-RG174. Cable selection and termination procedures remain unchanged.

Q: What is the significance of the product status change from obsolete to active?

A: The substitute part carries active product status, indicating ongoing manufacturing and availability. The original part is obsolete, meaning production has ended and inventory is limited. Transitioning to the active substitute ensures long-term supply chain continuity and support.

Q: Do the material composition differences affect electrical performance?

A: No. The substitute part uses beryllium copper for the center contact and brass for the body, compared to phosphor bronze and zinc die cast in the original. Both configurations maintain the specified 50-ohm impedance and 0.3 dB insertion loss. Material changes do not affect electrical performance when these critical specifications are maintained.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both the 2FA1-NKSJ-C01-6 and FA1-NKSJ-C01-6 are ROHS3 compliant and REACH affected. Regulatory compliance remains equivalent between the original and substitute parts.

Q: What is the operating temperature range for each connector?

A: The original 2FA1-NKSJ-C01-6 operates from -40°C to 100°C. The substitute FA1-NKSJ-C01-6 operates from -40°C to 115°C. The substitute provides an extended upper temperature limit of 15°C, offering enhanced capability for high-temperature applications.

Q: Are the mating cycle ratings identical?

A: Yes. Both connectors are rated for 100 mating cycles, indicating equivalent mechanical durability and connection reliability.