Pomona Electronics 4283 SMA Coaxial Connector Adapter

Part Overview

The Pomona Electronics 4283 is a straight-through SMA plug-to-plug coaxial adapter designed for RF applications requiring male-to-male pin configuration. This adapter facilitates connection between two SMA male connectors in a free-hanging inline configuration. The part is classified as obsolete, necessitating identification of active substitute components that maintain equivalent electrical and mechanical compatibility for continued system integration and maintenance.

Substiute Parts

4283

Pomona ElectronicsIn Stock: 10844283 Datasheet

Current PartRFQ

132168

Amphenol RFIn Stock: 4076132168 Datasheet

DirectRFQ

930A505

Winchester InterconnectIn Stock: 818930A505 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Pomona Electronics 4283 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Adapter type: Plug to Plug configuration
• Adapter series: SMA to SMA
• Center gender: Male to Male
• Style: Straight
• Mounting type: Free Hanging (In-Line)
• Fastening type: Threaded connections on both ends
• Dielectric material: PTFE
• Operating temperature range: -65°C to 165°C minimum

Material and Finish Specifications:

• Center contact plating: Gold
• Body finish: Gold
• Dielectric material: PTFE

Substitute parts must satisfy all primary compatibility criteria to ensure mechanical and electrical interchangeability. Material composition and finish specifications support RF performance and environmental durability requirements.

Parameter Comparison

Engineering Selection Recommendations

Amphenol RF 132168 is the primary substitute for the Pomona Electronics 4283. This part maintains full mechanical and electrical compatibility across all specified parameters: identical adapter configuration (SMA plug-to-plug, male-to-male), matching material specifications (PTFE dielectric, gold plating), and equivalent operating temperature range (-65°C to 165°C). The Amphenol RF 132168 holds active product status with ROHS3 compliance, ensuring continued availability and regulatory alignment. The part provides additional specification data including 50-ohm impedance and 18 GHz maximum frequency rating, supporting RF performance verification in system applications.

Winchester Interconnect 930A505 is listed as an alternative substitute based on available designation as an SMA male/male inline adapter with active product status and RoHS compliance. However, this part lacks complete specification documentation in the provided parameters. Selection of this component requires confirmation of mechanical dimensions, material composition, and electrical performance characteristics against system requirements.

Frequently Asked Questions (FAQ)

Q: Can the Amphenol RF 132168 directly replace the Pomona Electronics 4283 in existing assemblies?

A: Yes. Both parts share identical mechanical interfaces (SMA plug-to-plug, male-to-male, straight, threaded fastening) and equivalent operating temperature specifications (-65°C to 165°C). The Amphenol RF 132168 maintains the same dielectric material (PTFE) and contact plating (gold) as the original part.

Q: What is the significance of the 50-ohm impedance specification on the Amphenol RF 132168?

A: The 50-ohm impedance is the standard characteristic impedance for RF coaxial systems. This specification confirms the Amphenol RF 132168 is designed for standard RF applications. The original Pomona 4283 does not specify impedance in the provided documentation.

Q: Are there packaging differences between the Pomona 4283 and Amphenol RF 132168?

A: The Pomona 4283 packaging is not specified in the provided data. The Amphenol RF 132168 is supplied in bag packaging. Verify packaging requirements for your procurement and assembly processes.

Q: What compliance certifications apply to substitute parts?

A: Both the Amphenol RF 132168 and Winchester Interconnect 930A505 are RoHS compliant. The Amphenol RF 132168 specifically carries ROHS3 certification, matching the original Pomona 4283. Both parts are classified under ECCN EAR99 for export control purposes.

Q: Why is the Winchester Interconnect 930A505 listed as an alternative if specification data is incomplete?

A: The Winchester Interconnect 930A505 is designated as an SMA male/male inline adapter with active product status and RoHS compliance. Complete specification verification is required before selection to confirm compatibility with system electrical and mechanical requirements.