Amphenol RF 122406 TNC Connector Jack Equivalent & Substitute Parts

Part Overview

The Amphenol RF 122406 is an active TNC connector jack designed for 50-ohm coaxial RF applications. This female socket connector features solder termination for both center contact and shield, panel mount configuration with bulkhead rear-side nut fastening, and operates at frequencies up to 11 GHz. The connector is RoHS3 compliant and rated for 500 volts with 500 mating cycles. Substitute parts are identified when equivalent electrical and mechanical parameters are required for applications where the original part is unavailable or inventory constraints necessitate alternative sourcing.

Substiute Parts

122406

Amphenol RFIn Stock: 1004122406 Datasheet

Current PartRFQ

PCB.SMAFST.2H.A.HT

Taoglas LimitedIn Stock: 2051PCB.SMAFST.2H.A.HT Datasheet

SimilarRFQ

PCB.SMAFST.2H.B.HT

Taoglas LimitedIn Stock: 1535PCB.SMAFST.2H.B.HT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Amphenol RF 122406 are identified based on the following critical parameters that determine functional equivalence:

Electrical Parameters:

• Impedance: 50 Ohms (required match)
• Connector Type: Jack, Female Socket (required match)
• Contact Termination: Solder (required match)
• Shield Termination: Solder (required match)

Mechanical Parameters:

• Mounting Type: Panel Mount (required match)
• Fastening Type: Threaded (required match)

Performance Parameters:

• Frequency capability at or above 11 GHz
• Voltage rating at or above 500 V
• Compliance certifications: RoHS3 and REACH status

The substitute parts listed (PCB.SMAFST.2H.A.HT and PCB.SMAFST.2H.B.HT) represent SMA connector jacks that maintain the core electrical and mechanical compatibility requirements. While the connector style differs from TNC to SMA, both are threaded panel-mount female socket connectors with 50-ohm impedance, solder termination, and equivalent or superior frequency performance. The substitution is valid where mechanical form factor differences are accommodated in the application design.

Parameter Comparison

Engineering Selection Recommendations

Amphenol RF 122406 (Primary Part): The Amphenol RF 122406 remains the specified component for applications requiring TNC connector geometry, 500-volt rating, and 11 GHz frequency operation. This part is active, RoHS3 compliant, and maintains REACH-affected status. Current inventory of 927 pieces supports immediate procurement.

Taoglas PCB.SMAFST.2H.A.HT (Gold Housing Substitute): This SMA connector jack substitute provides equivalent electrical performance with extended frequency capability to 12.4 GHz. The gold housing finish and gold body finish distinguish this variant. Voltage rating of 335 volts is lower than the primary part. RoHS3 compliance is confirmed; however, REACH status is unaffected. Inventory of 2022 pieces is available. This substitute is suitable for applications where SMA connector geometry is acceptable and voltage requirements do not exceed 335 volts.

Taoglas PCB.SMAFST.2H.B.HT (Silver Housing Substitute): This SMA connector jack substitute provides equivalent electrical performance with extended frequency capability to 12.4 GHz. The silver housing finish and nickel body finish match the aesthetic characteristics of the primary part. Voltage rating of 335 volts is lower than the primary part. RoHS3 compliance is confirmed; however, REACH status is unaffected. Inventory of 1462 pieces is available. This substitute is suitable for applications where SMA connector geometry is acceptable, voltage requirements do not exceed 335 volts, and silver finish consistency is preferred.

Frequently Asked Questions (FAQ)

Q: Can the Taoglas SMA connectors directly replace the Amphenol RF TNC connector?

A: Direct mechanical replacement is not possible due to connector style differences. TNC and SMA connectors have different mating interfaces and physical dimensions. However, both maintain 50-ohm impedance, solder termination, and panel-mount threaded fastening. Substitution requires mechanical redesign of the mating interface and connector mounting provisions.

Q: What is the voltage rating difference between the primary part and substitutes?

A: The Amphenol RF 122406 is rated for 500 volts, while both Taoglas substitutes are rated for 335 volts. Applications requiring operation above 335 volts must use the primary part. Applications operating at or below 335 volts can use either substitute without voltage-related limitations.

Q: Are the substitute parts RoHS3 compliant?

A: Yes, both Taoglas substitute parts (PCB.SMAFST.2H.A.HT and PCB.SMAFST.2H.B.HT) are RoHS3 compliant, matching the compliance status of the primary Amphenol RF 122406 part.

Q: What is the difference between PCB.SMAFST.2H.A.HT and PCB.SMAFST.2H.B.HT?

A: Both parts are functionally identical SMA connector jacks with identical electrical specifications. The primary differences are housing color and body finish: PCB.SMAFST.2H.A.HT features gold housing and gold body finish, while PCB.SMAFST.2H.B.HT features silver housing and nickel body finish. Selection between these variants depends on aesthetic or application-specific finish requirements.

Q: Do the substitute parts support the same frequency range as the primary part?

A: The substitute parts support extended frequency operation to 12.4 GHz compared to the primary part's 11 GHz maximum. Both substitutes exceed the frequency capability of the primary part, making them suitable for applications requiring operation within the 11 GHz specification.

Q: What packaging differences exist between the primary part and substitutes?

A: The Amphenol RF 122406 is supplied in bag packaging, while both Taoglas substitutes are supplied in tray packaging. Tray packaging provides improved component protection and organization during storage and handling.

Q: Are mating cycle ratings available for the substitute parts?

A: Mating cycle data is not provided for the Taoglas substitute parts. The primary Amphenol RF 122406 is rated for 500 mating cycles. Applications with specific mating cycle requirements should reference the primary part specification.

Q: What is the insertion loss specification for the substitute parts?

A: Insertion loss data is not provided for the Taoglas substitute parts. The primary Amphenol RF 122406 specifies 0.18 dB insertion loss. Applications with specific insertion loss requirements should reference the primary part specification or contact the manufacturer for detailed performance data.