Amphenol RF 027-1 SMB Coaxial Connector Equivalent & Substitute Parts

Part Overview

The Amphenol RF 027-1 is an SMB connector plug with female socket configuration, designed for 50-ohm RF applications. This straight, free-hanging (in-line) connector features solder cup termination and operates across a frequency range up to 4 GHz. The part is currently active in production with 1082 units in stock. Equivalent and substitute parts are identified to provide design flexibility, supply chain alternatives, and compatibility options for applications requiring SMB coaxial connectors with matching electrical and mechanical specifications.

Substiute Parts

027-1

Amphenol RFIn Stock: 1134027-1 Datasheet

Current PartRFQ

131-3403-001

Cinch Connectivity SolutionsIn Stock: 2176131-3403-001 Datasheet

DirectRFQ

413985-1

TE Connectivity AMP ConnectorsIn Stock: 2703413985-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Amphenol RF 027-1 are qualified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Core Matching Parameters:

• Connector Style: SMB (required match)
• Connector Type: Plug, Female Socket (required match)
• Impedance: 50 Ohms (required match)
• Mounting Type: Free Hanging (In-Line) (required match)
• Fastening Type: Snap-On (required match)
• Frequency - Max: 4 GHz (required match)
• Operating Temperature Range: -65°C to 165°C (required match)
• Voltage Rating: 335 V (required match)
• Mating Cycles: 500 (required match)
• Insertion Loss: 0.3 dB (required match)
• Body Material: Brass with Gold Finish (required match)
• Dielectric Material: PTFE (required match)
• Center Contact Material: Beryllium Copper with Gold Plating (required match)

Allowable Variations:

• Contact Termination: Solder Cup (main part) vs. Crimp or Solder (substitute parts) — substitutes support both termination methods, providing expanded application flexibility
• Included Components: Quantity and type of included accessories may vary between manufacturers
• Cable Group Compatibility: Substitute parts specify compatible cable types; main part does not specify cable group

Both substitute parts meet all core electrical and mechanical requirements and maintain full compatibility with the Amphenol RF 027-1 in RF applications.

Parameter Comparison

Engineering Selection Recommendations

Amphenol RF 027-1 (Primary Part) Select this part when solder cup termination is the specified assembly method. All three parts are active products with full compliance to ROHS3 and REACH regulations. The Amphenol RF 027-1 is ROHS3 compliant and currently maintains 1082 units in inventory.

Cinch Connectivity Solutions 131-3403-001 (Direct Substitute) This part supports both crimp and solder termination methods, providing assembly flexibility. It is ROHS3 compliant with 2109 units in current inventory. Compatible cable groups include RG-161, 174, 179, 187, 188, and 316. Select this part when crimp termination capability is required or when solder assembly is preferred with expanded cable compatibility options.

TE Connectivity AMP Connectors 413985-1 (Direct Substitute) This part supports both crimp and solder termination methods. It is RoHS compliant with 2618 units in current inventory. Compatible cable groups include RG-174, 188, and 316. Select this part when crimp termination capability is required or when solder assembly is preferred with TE Connectivity supply chain integration.

All three parts maintain identical electrical performance (0.3 dB insertion loss, 4 GHz frequency rating, 50-ohm impedance) and mechanical specifications (500 mating cycles, -65°C to 165°C operating range, 335 V voltage rating). Selection between parts should be based on termination method requirements, cable compatibility specifications, and supply chain preferences.

Frequently Asked Questions (FAQ)

Q: Can the Cinch 131-3403-001 or TE Connectivity 413985-1 be used as direct replacements for the Amphenol RF 027-1?

A: Yes. Both substitute parts meet all core electrical and mechanical specifications. The primary difference is contact termination flexibility: the Amphenol RF 027-1 specifies solder cup termination, while both substitutes support crimp or solder termination. All three parts deliver identical RF performance (0.3 dB insertion loss, 4 GHz maximum frequency, 50-ohm impedance) and operate within the same temperature range (-65°C to 165°C).

Q: What is the difference between solder cup and crimp termination?

A: The Amphenol RF 027-1 uses solder cup termination, requiring cable assembly through soldering. The Cinch 131-3403-001 and TE Connectivity 413985-1 support both crimp and solder termination, allowing either crimping or soldering methods. Crimp termination typically provides faster assembly and consistent results in high-volume production.

Q: Are there cable compatibility differences between the substitute parts?

A: Yes. The Cinch 131-3403-001 is compatible with cable groups RG-161, 174, 179, 187, 188, and 316. The TE Connectivity 413985-1 is compatible with cable groups RG-174, 188, and 316. The Amphenol RF 027-1 does not specify cable group compatibility. Verify cable specifications against your application requirements before selection.

Q: Do all three parts meet environmental and regulatory compliance requirements?

A: Yes. All three parts are ROHS compliant (Amphenol RF 027-1 and Cinch 131-3403-001 are ROHS3 compliant; TE Connectivity 413985-1 is RoHS compliant), REACH affected, and classified under ECCN EAR99. All parts have Moisture Sensitivity Level 1 (Unlimited) and share the same HTSUS code 8536.69.4010.

Q: Which part should I select for new designs?

A: All three parts are active products suitable for new designs. If solder assembly is specified, any of the three parts can be used. If crimp assembly is preferred, select either the Cinch 131-3403-001 or TE Connectivity 413985-1. Consider cable compatibility requirements and supply chain availability when making final selection.

Q: What is the inventory status for each part?

A: Amphenol RF 027-1 has 1082 units in stock. Cinch 131-3403-001 has 2109 units in stock. TE Connectivity 413985-1 has 2618 units in stock. All parts are listed as new original stock.

Q: Are the included components the same across all three parts?

A: No. The Amphenol RF 027-1 includes 4 pieces (1 Connector, 1 Contact, 1 Ferrule, 1 Sleeve). The Cinch 131-3403-001 includes 2 pieces (1 Connector, 1 Sleeve). The TE Connectivity 413985-1 includes 3 pieces (1 Connector, 1 Contact, 1 Ferrule). Verify included components against assembly requirements.