Pomona Electronics 72945 SMA Connector Plug Equivalent & Substitute Parts

Part Overview

The Pomona Electronics 72945 is an SMA connector plug with male pin configuration, designed for 50-ohm coaxial cable applications. This component features crimp or solder termination and operates across a frequency range up to 12.4 GHz. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations where this connector type is specified.

Substiute Parts

72945

Pomona ElectronicsIn Stock: 71472945 Datasheet

Current PartRFQ

72943

Pomona ElectronicsIn Stock: 92772943 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Pomona Electronics 72945 is determined by strict equivalence across the following critical parameters:

• Connector style (SMA)
• Connector type (Plug, Male Pin)
• Impedance (50 Ohms)
• Contact termination method (Crimp or Solder)
• Shield termination (Crimp)
• Mounting configuration (Free Hanging/In-Line)
• Maximum frequency rating (12.4 GHz or higher)
• Operating temperature range (-65°C to 165°C minimum)
• Voltage rating (500 V minimum)
• Material composition and finish (Brass body with gold plating)
• Dielectric material (PTFE)
• Regulatory compliance (ROHS3 Compliant)

The Pomona Electronics 72943 meets all substitution criteria and is classified as an equivalent alternative.

Parameter Comparison

Engineering Selection Recommendations

The Pomona Electronics 72943 is the direct equivalent substitute for the obsolete 72945 model. Both parts maintain identical electrical and mechanical specifications across all critical parameters, including impedance, frequency rating, operating temperature range, and voltage rating. The 72943 carries active product status with ROHS3 compliance and REACH unaffected certification, matching the regulatory standing of the original part.

The primary distinction between these parts is product lifecycle status: the 72945 is obsolete while the 72943 remains in active production. The 72943 is available in bulk packaging with enhanced component inclusion (additional heat shrink tubing), providing practical advantages for production environments.

Frequently Asked Questions (FAQ)

Q: Can the 72943 be used as a direct replacement for the 72945 in existing designs?

A: Yes. Both parts are SMA plug connectors with identical electrical specifications (50-ohm impedance, 12.4 GHz maximum frequency, 500 V rating) and mechanical configurations (crimp or solder termination, free-hanging mounting). They share the same material composition, finish, and dielectric properties.

Q: What is the significance of the product status difference between these parts?

A: The 72945 is classified as obsolete, indicating it is no longer manufactured. The 72943 maintains active status, ensuring continued availability and supply chain reliability for new procurements and system maintenance.

Q: Are there packaging differences between the 72945 and 72943?

A: The 72943 is supplied in bulk packaging and includes an additional heat shrink component compared to the 72945. Both parts contain the core connector assembly, contact, and ferrule. The heat shrink inclusion in the 72943 provides additional termination options without affecting electrical or mechanical compatibility.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both the 72945 and 72943 are ROHS3 compliant and REACH unaffected, meeting equivalent environmental and regulatory standards.

Q: What cable types are compatible with these connectors?

A: The 72945 is specified for RG-142 and RG-400 cable groups. The 72943 is specified for RG-58 cable group. Cable compatibility should be verified based on the specific application requirements and impedance matching needs.