Amphenol RF 142144 SMB Coaxial Connector Equivalent & Substitute Parts

Part Overview

The Amphenol RF 142144 is an SMB connector jack with male pin configuration, designed for 50-ohm RF applications. This right-angle, through-hole solder-mount connector operates across a frequency range up to 4 GHz and is rated for 335 V with a maximum operating temperature of 165°C. The connector features a snap-on fastening mechanism and is constructed with brass body and center contact materials, finished in nickel and gold plating respectively. The part is currently active in production with ROHS3 compliance and REACH affected status. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when procurement from multiple suppliers is required.

Substiute Parts

142144

Amphenol RFIn Stock: 902142144 Datasheet

Current PartRFQ

131-3701-306

Cinch Connectivity Solutions JohnsonIn Stock: 1078131-3701-306 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Amphenol RF 142144 is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part Cinch Connectivity Solutions Johnson 131-3701-306 qualifies as a direct equivalent based on the following criteria:

Electrical Parameters (Must Match):

• Impedance: 50 Ohms
• Frequency - Max: 4 GHz
• Voltage Rating: 335 V
• Operating Temperature Range: -65°C ~ 165°C
• Mating Cycles: 500

Mechanical Parameters (Must Match):

• Connector Style: SMB
• Connector Type: Jack, Male Pin
• Mounting Type: Through Hole, Right Angle
• Contact Termination: Solder
• Shield Termination: Solder
• Fastening Type: Snap-On
• Number of Ports: 1

Material & Construction (Must Match):

• Body Material: Brass
• Body Finish: Nickel
• Center Contact Material: Brass
• Center Contact Plating: Gold
• Dielectric Material: Polytetrafluoroethylene (PTFE)

Compliance & Regulatory (Must Match):

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)
• REACH Status: REACH Affected
• ECCN: EAR99
• HTSUS: 8536.69.4010

Both parts maintain identical functional specifications and are suitable for direct substitution in PCB-mounted RF applications requiring 50-ohm SMB jack connectors with right-angle through-hole solder termination.

Parameter Comparison

Engineering Selection Recommendations

Both the Amphenol RF 142144 and Cinch Connectivity Solutions Johnson 131-3701-306 are active production parts with full ROHS3 compliance and REACH affected status. Selection between these parts should be based on the following factors:

Procurement Availability: The Cinch part (131-3701-306) currently has higher inventory availability at 1021 pieces compared to 799 pieces for the Amphenol part (142144). This may influence lead time considerations for high-volume orders.

Packaging Format: The Amphenol part is supplied in bag packaging, while the Cinch part is supplied in bulk packaging. Packaging selection depends on assembly line requirements and component handling procedures.

Regulatory Compliance: Both parts meet identical regulatory requirements including ROHS3 compliance, REACH affected status, EAR99 ECCN classification, and HTSUS code 8536.69.4010. No compliance differentiation exists between the two options.

Electrical Performance: Both parts are rated for identical electrical specifications including 50-ohm impedance, 4 GHz maximum frequency, 335 V voltage rating, and -65°C to 165°C operating temperature range. The Amphenol part specifies 0.6 dB insertion loss; the Cinch part does not provide this specification.

Mechanical Compatibility: Both connectors feature identical mechanical specifications for PCB mounting, including through-hole right-angle solder termination, snap-on fastening, and 500 mating cycle rating. Direct mechanical substitution is supported without design modification.

Frequently Asked Questions (FAQ)

Q: Can the Cinch Connectivity Solutions Johnson 131-3701-306 be used as a direct replacement for the Amphenol RF 142144 in existing designs?

A: Yes. Both connectors meet identical electrical, mechanical, and material specifications. The Cinch part qualifies as a direct substitute for the Amphenol part without requiring design changes or PCB layout modifications.

Q: What are the key parameters that determine substitution eligibility for SMB coaxial connectors?

A: Substitution eligibility is determined by matching the following parameters: connector style (SMB), connector type (Jack, Male Pin), impedance (50 Ohms), mounting type (Through Hole, Right Angle), contact and shield termination method (Solder), frequency rating (4 GHz maximum), voltage rating (335 V), operating temperature range (-65°C to 165°C), fastening type (Snap-On), mating cycle rating (500), body and contact materials (Brass), plating specifications (Nickel body finish, Gold center contact plating), dielectric material (PTFE), and regulatory compliance status (ROHS3, REACH).

Q: Are there differences in packaging between the Amphenol and Cinch parts?

A: Yes. The Amphenol RF 142144 is packaged in bags, while the Cinch Connectivity Solutions Johnson 131-3701-306 is packaged in bulk format. Packaging selection should align with assembly line requirements and component handling procedures.

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both parts are ROHS3 compliant, REACH affected, classified as EAR99 for export control purposes, and assigned the same HTSUS code (8536.69.4010). No compliance differentiation exists between the two parts.

Q: What is the operating temperature range for these SMB connectors?

A: Both the Amphenol RF 142144 and Cinch Connectivity Solutions Johnson 131-3701-306 operate across a temperature range of -65°C to 165°C, supporting applications in both low-temperature and high-temperature environments.

Q: Is insertion loss a critical parameter for selecting between these two connectors?

A: The Amphenol part specifies 0.6 dB insertion loss, while the Cinch part does not provide this specification. If insertion loss is a critical design parameter, the Amphenol specification should be referenced. For applications where insertion loss data is not provided by the substitute manufacturer, direct electrical testing or manufacturer consultation is appropriate.

Q: What is the maximum frequency rating for these connectors?

A: Both connectors are rated for a maximum frequency of 4 GHz, making them suitable for RF applications up to this frequency limit.

Q: How many mating cycles are these connectors rated for?

A: Both the Amphenol RF 142144 and Cinch Connectivity Solutions Johnson 131-3701-306 are rated for 500 mating cycles, indicating the expected number of connect-disconnect operations before performance degradation.