SMA Connector Plug 142-0439-101 Equivalent & Substitute Parts

Part Overview

The Cinch Connectivity Solutions 142-0439-101 is an SMA connector plug designed for RF coaxial applications. This male pin connector operates at 50 ohms impedance with right-angle solder termination and free-hanging mounting configuration. The part is currently active in production status with 670 units in stock. Equivalent and substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when specific packaging or compliance requirements necessitate component substitution.

Substiute Parts

142-0439-101

Cinch Connectivity SolutionsIn Stock: 720142-0439-101 Datasheet

Current PartRFQ

132239

Amphenol RFIn Stock: 935132239 Datasheet

SimilarRFQ

72960

Pomona ElectronicsIn Stock: 88172960 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for SMA connector plugs is determined by strict alignment of electrical and mechanical parameters. The primary criteria for equivalent parts are connector style (SMA), connector type (plug, male pin), impedance (50 ohms), mounting configuration (free hanging, right angle), and frequency rating (12.4 GHz maximum). All identified substitutes maintain these core parameters.

Two substitute parts are qualified:

Amphenol RF 132239 maintains full electrical and mechanical compatibility with the main part. This substitute shares identical connector style, type, impedance, mounting configuration, frequency rating, operating temperature range, and material specifications. The primary difference is packaging format (bag versus bulk) and cable group compatibility.

Pomona Electronics 72960 qualifies as a substitute with one critical distinction: contact termination is crimp rather than solder. This part maintains all other electrical and mechanical parameters including connector style, type, impedance, mounting configuration, frequency rating, operating temperature, and material specifications. The crimp termination represents a functional difference requiring application-level evaluation.

Parameter Comparison

Engineering Selection Recommendations

Amphenol RF 132239 is the primary equivalent substitute for 142-0439-101. Both parts are active in production status with full RoHS compliance certification. The Amphenol part carries ROHS3 compliance and REACH affected status, providing enhanced regulatory documentation. This substitute is suitable for direct replacement in applications where packaging format (bag versus bulk) does not impose constraints.

Pomona Electronics 72960 is a qualified substitute with functional equivalence in electrical and mechanical parameters. This part differs in contact termination method (crimp versus solder) and carries ROHS3 compliance with REACH unaffected status. Selection of this substitute requires confirmation that crimp termination is compatible with the application's assembly and performance requirements. The higher voltage rating (500 V versus 250 V) provides additional margin in high-voltage applications.

All three parts maintain identical RF performance characteristics at 12.4 GHz maximum frequency and operate across the full temperature range of -65°C to 165°C. Material composition, impedance, and connector geometry are consistent across all options.

Frequently Asked Questions (FAQ)

Q: Can Amphenol RF 132239 be used as a direct replacement for Cinch 142-0439-101?

A: Yes. Both parts share identical connector style, type, impedance, mounting configuration, frequency rating, operating temperature range, and material specifications. The primary difference is packaging format (bag versus bulk). Both parts are active in production with current inventory availability.

Q: What is the key difference between the Pomona Electronics 72960 and the main part?

A: The Pomona part uses crimp contact termination instead of solder termination. All other electrical and mechanical parameters are equivalent. This difference affects assembly methodology and requires confirmation of compatibility with the application's assembly process.

Q: Are all three parts RoHS compliant?

A: Yes. The main part (142-0439-101) is RoHS compliant. Both substitute parts (132239 and 72960) carry ROHS3 compliance certification, which represents an enhanced compliance standard.

Q: What is the significance of the voltage rating difference between parts?

A: The main part is rated at 250 V, while Pomona 72960 is rated at 500 V. Amphenol 132239 does not specify a voltage rating. The voltage rating indicates the maximum voltage the connector can safely handle. Applications operating above 250 V would require the Pomona part or confirmation of Amphenol's voltage capability.

Q: Do all parts support the same cable groups?

A: No. The main part supports Belden 7807A and LMR-200 cables. Amphenol 132239 supports RG-8X, Belden 9258, and LMR-240 cables. Pomona 72960 supports RG-142 and 400 cables. Cable compatibility must be verified for the specific application.

Q: What is the difference in mating cycle ratings?

A: All three parts are rated for 500 mating cycles, indicating identical mechanical durability specifications.

Q: Can packaging format affect part selection?

A: Yes. The main part and Pomona 72960 are supplied in bulk packaging, while Amphenol 132239 is supplied in bag packaging. Packaging format may affect inventory management, handling procedures, and cost per unit depending on application volume requirements.