Amphenol RF 031-6823 TNC Connector Jack Equivalent & Substitute Parts

Part Overview

The Amphenol RF 031-6823 is an active TNC connector jack (female socket) rated for 50 ohms impedance with solder contact termination and crimp shield termination. This free-hanging in-line connector operates across a frequency range up to 6 GHz and supports mating cycles of 500. The part is ROHS3 compliant and REACH affected, making it suitable for applications requiring RF coaxial connectivity in industrial and telecommunications environments. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the connector interface, allowing for component interchangeability based on cable group compatibility and operational specifications.

Substiute Parts

031-6823

Amphenol RFIn Stock: 1224031-6823 Datasheet

Current PartRFQ

031-6827

Amphenol RFIn Stock: 912031-6827 Datasheet

Parametric EquivalentRFQ

TC-400-TF-X

Amphenol Times Microwave SystemsIn Stock: 871TC-400-TF-X Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Amphenol RF 031-6823 are identified based on strict equivalence of core electrical and mechanical parameters. The substitution logic is based on the following criteria:

Primary Equivalence Parameters:

• Connector style (TNC)
• Connector type (Jack, Female Socket)
• Impedance (50 Ohms)
• Contact termination (Solder)
• Shield termination (Crimp)
• Mounting type (Free Hanging/In-Line)
• Fastening type (Threaded)
• Frequency maximum (6 GHz)
• Mating cycles (500)
• Center contact material (Beryllium Copper)
• Dielectric material (PTFE)
• Center contact plating (Gold)

Secondary Compatibility Parameters:

• Cable group compatibility (LMR series cables)
• Operating temperature range
• Body material and finish
• Regulatory compliance (RoHS, REACH, ECCN)

Substitute parts maintain all primary equivalence parameters. Variations in cable group designation (LMR-195, LMR-240, LMR-400) indicate compatibility with different cable sizes while preserving connector interface specifications. Operating temperature range and body finish variations are noted but do not preclude substitution when primary parameters align.

Parameter Comparison

Engineering Selection Recommendations

031-6823 Primary Selection: The Amphenol RF 031-6823 is the primary reference part with active product status, ROHS3 compliance, and REACH affected designation. It supports the extended operating temperature range of -65°C to 165°C and is packaged in bulk format. This part is suitable for applications requiring maximum thermal performance and is available with 1136 units in stock.

031-6827 Equivalent Substitute: The Amphenol RF 031-6827 maintains identical electrical and mechanical specifications to the 031-6823, including ROHS3 compliance and REACH affected status. The primary difference is cable group designation (LMR-240 versus LMR-195), indicating compatibility with larger diameter cables. Operating temperature range and body finish (nickel) are identical. This part is suitable for direct substitution when LMR-240 cable compatibility is required. Inventory availability is 802 units.

TC-400-TF-X Alternative Substitute: The Amphenol Times Microwave Systems TC-400-TF-X maintains core electrical parameters (TNC jack, 50 ohms, solder/crimp termination, 6 GHz maximum frequency, 500 mating cycles) and is RoHS compliant. Notable differences include reduced operating temperature range (-55°C to 125°C versus -65°C to 165°C), white bronze body finish versus nickel, and LMR-400 cable group designation for larger diameter cables. This part is suitable for substitution in applications where the narrower operating temperature range is acceptable and LMR-400 cable compatibility is required. Inventory availability is 807 units.

Selection Criteria:

• Use 031-6823 for standard applications with LMR-195 cable compatibility and extended temperature range requirements
• Use 031-6827 when LMR-240 cable compatibility is required with identical thermal performance
• Use TC-400-TF-X when LMR-400 cable compatibility is required and operating temperature range of -55°C to 125°C is acceptable

All three parts are active products with current manufacturing status and suitable regulatory compliance for their respective application environments.

Frequently Asked Questions (FAQ)

Q: Can the 031-6827 be used as a direct replacement for the 031-6823?

A: Yes. The 031-6827 maintains all primary electrical and mechanical parameters including connector style, impedance, termination methods, frequency rating, and mating cycles. The difference in cable group designation (LMR-240 versus LMR-195) indicates compatibility with different cable diameters but does not affect connector interface compatibility. Both parts have identical operating temperature ranges and body finishes.

Q: What is the significance of the cable group designation (LMR-195, LMR-240, LMR-400)?

A: Cable group designation indicates the compatible cable diameter range for the connector. LMR-195 supports smaller diameter cables, LMR-240 supports medium diameter cables, and LMR-400 supports larger diameter cables. The connector interface remains identical across all three parts; the cable group designation affects only the cable compatibility and crimp ferrule sizing. Selection should be based on the cable diameter used in the application.

Q: Can TC-400-TF-X be used in applications requiring the full -65°C to 165°C operating temperature range?

A: No. The TC-400-TF-X has a reduced operating temperature range of -55°C to 125°C. Applications requiring operation below -55°C or above 125°C must use either the 031-6823 or 031-6827, both of which support -65°C to 165°C.

Q: Are there differences in regulatory compliance between the three parts?

A: The 031-6823 and 031-6827 are both ROHS3 compliant and REACH affected. The TC-400-TF-X is RoHS compliant with REACH status not specified in the provided data. All three parts carry ECCN EAR99 and HTSUS 8536.69.4010 classifications. Applications subject to specific regulatory requirements should verify compliance status with the respective manufacturer.

Q: What is the difference between nickel and white bronze body finishes?

A: Both finishes provide corrosion resistance and electrical conductivity. Nickel finish (031-6823, 031-6827) and white bronze finish (TC-400-TF-X) are both suitable for RF connector applications. Selection between them is typically based on application environment and aesthetic requirements rather than electrical performance.

Q: How do the packaging formats (Bulk versus Bag) affect component selection?

A: Packaging format does not affect electrical or mechanical performance. Bulk packaging (031-6823, 031-6827) is typically used for high-volume procurement, while bag packaging (TC-400-TF-X) is suitable for smaller quantity orders. Selection should be based on procurement volume requirements and inventory management practices.

Q: Are all three parts suitable for 50 ohm RF applications up to 6 GHz?

A: Yes. All three parts are rated for 50 ohm impedance and 6 GHz maximum frequency. They are electrically equivalent for RF transmission line applications within these specifications.