Amphenol RF 142115 SMB Coaxial Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol RF 142115 is an SMB connector plug with female socket configuration, designed for 75-ohm coaxial applications. This right-angle solder connector operates at frequencies up to 4 GHz and is compatible with RG-179, RG-187, and related cable groups. The part maintains active product status with 990 units in current inventory. Substitute parts are identified to address application requirements, inventory availability, or specific cable compatibility needs while maintaining core electrical and mechanical specifications.

Substiute Parts

142115

Amphenol RFIn Stock: 1058142115 Datasheet

Current PartRFQ

131-8403-101

Cinch Connectivity SolutionsIn Stock: 5390131-8403-101 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Amphenol RF 142115 are qualified based on the following critical parameters that determine functional equivalence:

Electrical Parameters:

• Impedance: 75 Ohms (mandatory match)
• Voltage Rating: 335 V (minimum requirement)
• Operating Temperature: -65°C ~ 165°C (mandatory match)
• Insertion Loss: 0.6 dB (performance baseline)

Mechanical Parameters:

• Connector Type: Plug, Female Socket (mandatory match)
• Mounting Type: Free Hanging (In-Line), Right Angle (mandatory match)
• Contact Termination: Solder (mandatory match)
• Fastening Type: Snap-On (mandatory match)
• Number of Ports: 1 (mandatory match)

Compliance Parameters:

• RoHS Status: ROHS3 Compliant (mandatory match)
• Moisture Sensitivity Level: 1 (Unlimited)
• REACH Status: REACH Affected

Cable Compatibility:

• Primary cable groups: RG-179, RG-187 series

The substitute part Cinch Connectivity Solutions 131-8403-101 qualifies as an equivalent based on matching impedance, termination method, mounting configuration, and compliance certifications. Frequency rating differences and cable group variations are noted in the parameter comparison table.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection: The Amphenol RF 142115 is the specified component and maintains active product status with adequate inventory (990 units). This part is ROHS3 compliant and REACH affected, meeting current regulatory requirements. The 4 GHz frequency rating provides operational margin for applications up to that specification.

Substitute Part Selection: The Cinch Connectivity Solutions 131-8403-101 qualifies as a functional substitute based on matching impedance (75 Ohms), termination method (solder), mounting configuration (free hanging, right angle), and compliance certifications (ROHS3, REACH). This part is classified as SMB Mini variant and operates at 2 GHz maximum frequency.

Selection Criteria:

1. Frequency Requirement: If the application operates at frequencies exceeding 2 GHz, the Amphenol RF 142115 is required. The Cinch 131-8403-101 is suitable for applications at 2 GHz and below.

2. Cable Compatibility: The Amphenol RF 142115 supports extended cable group compatibility including RG-179A, RG-179B, Belden 9221, and M17/94-RG179. The Cinch 131-8403-101 supports RG-179 and RG-187 cables. Verify cable group requirements before substitution.

3. Kit Contents: The Amphenol RF 142115 includes a ferrule and heat shrink component. The Cinch 131-8403-101 includes a sleeve. Assembly requirements may dictate which kit composition is appropriate.

4. Inventory Availability: The Cinch 131-8403-101 has higher inventory availability (5351 units) compared to the Amphenol RF 142115 (990 units).

5. Connector Style Variant: The Cinch part is designated as SMB Mini, representing a physical size variant within the SMB connector family. Mechanical fit and mating interface compatibility with existing equipment must be confirmed.

Frequently Asked Questions (FAQ)

Q: Can the Cinch 131-8403-101 be used as a direct replacement for the Amphenol RF 142115?

A: The Cinch 131-8403-101 qualifies as a functional substitute for applications operating at 2 GHz and below. Both parts share identical impedance (75 Ohms), termination method (solder), mounting type (free hanging, right angle), and compliance status (ROHS3). However, the Cinch part is designated as SMB Mini, which may have different physical dimensions. Mechanical compatibility with mating connectors and cable assemblies must be confirmed before substitution.

Q: What is the primary difference between these two parts?

A: The maximum frequency rating differs: Amphenol RF 142115 operates to 4 GHz, while Cinch 131-8403-101 operates to 2 GHz. Additionally, the Cinch part is classified as SMB Mini variant, and cable group compatibility is more limited (RG-179, RG-187 only versus the extended Amphenol cable group list).

Q: Are both parts RoHS compliant?

A: Yes, both the Amphenol RF 142115 and Cinch 131-8403-101 are ROHS3 compliant and REACH affected, meeting current environmental and regulatory requirements.

Q: What cable types are compatible with each connector?

A: The Amphenol RF 142115 is compatible with RG-179, RG-179A, RG-179B, RG-187, RG-187A, Belden 9221, and M17/94-RG179 cables. The Cinch 131-8403-101 is compatible with RG-179 and RG-187 cables. If your application uses RG-179A, RG-179B, or other extended cable groups, the Amphenol part is required.

Q: Do both connectors have the same operating temperature range?

A: Yes, both parts operate across the identical temperature range of -65°C to 165°C and have the same voltage rating of 335 V.

Q: What is included in each connector kit?

A: The Amphenol RF 142115 includes 4 components: connector, end cap, ferrule, and heat shrink. The Cinch 131-8403-101 includes 3 components: connector, end cap, and sleeve. Assembly procedures may differ based on these kit contents.

Q: Which part should I select for a 3 GHz application?

A: The Amphenol RF 142115 is required for 3 GHz operation, as it is rated to 4 GHz maximum frequency. The Cinch 131-8403-101 is rated only to 2 GHz and is not suitable for this application.

Q: Are there any mechanical compatibility concerns with the SMB Mini designation?

A: The Cinch 131-8403-101 is designated as SMB Mini, indicating a physical size variant. While electrical parameters match, physical dimensions and mating interface compatibility with existing connectors and equipment must be verified before substitution.