MCX Connector Receptacle 73008 - Equivalent & Substitute Parts

Part Overview

The Pomona Electronics 73008 is an MCX connector receptacle designed for 50-ohm coaxial applications. This female socket connector features right-angle through-hole mounting with solder termination, operating across a frequency range up to 3 GHz and temperature range of -55°C to 155°C. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and new design implementations where MCX receptacle connectivity is required.

Substiute Parts

73008

Pomona ElectronicsIn Stock: 91673008 Datasheet

Current PartRFQ

133-3701-311

Cinch Connectivity SolutionsIn Stock: 1451133-3701-311 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Pomona Electronics 73008 is based on matching the following critical parameters:

• Connector style: MCX
• Connector type: Receptacle, female socket configuration
• Impedance: 50 ohms
• Mounting: Through-hole, right-angle orientation
• Termination method: Solder contact and shield
• Fastening mechanism: Snap-on coupling

The Cinch Connectivity Solutions 133-3701-311 satisfies all these core substitution criteria. Both connectors maintain MCX receptacle architecture with identical impedance, mounting orientation, and termination methods. The snap-on fastening type is preserved across both parts, ensuring mechanical compatibility in existing PCB layouts.

Parameter Comparison

Engineering Selection Recommendations

The Cinch Connectivity Solutions 133-3701-311 is a direct functional substitute for the obsolete Pomona Electronics 73008. Both parts maintain ROHS3 compliance and share identical core electrical and mechanical specifications for MCX receptacle connectivity.

The Cinch part offers enhanced performance margins in frequency response (6 GHz versus 3 GHz) and voltage rating (335 V versus 170 V), while extending the operating temperature range to -65°C to 165°C. These expanded specifications do not create incompatibility; they represent improved capability within the same connector family and form factor.

The Cinch 133-3701-311 is currently in active production status with established supply availability, making it the appropriate selection for applications requiring MCX receptacle connectivity where the Pomona 73008 is no longer obtainable.

Frequently Asked Questions (FAQ)

Q: Can the Cinch 133-3701-311 directly replace the Pomona 73008 in existing designs?

A: Yes. Both connectors share identical MCX receptacle architecture, 50-ohm impedance, through-hole right-angle mounting, and solder termination. The physical footprint and electrical interface are compatible.

Q: What is the difference between "Receptacle" and "Jack" terminology for these connectors?

A: Both terms describe the female socket configuration in MCX connector nomenclature. The functional role and mating interface are identical; terminology variation reflects manufacturer naming conventions.

Q: Does the higher frequency rating of the Cinch part affect compatibility?

A: No. The 6 GHz maximum frequency of the Cinch connector encompasses the 3 GHz operating range of the original Pomona part. Higher frequency capability does not create incompatibility in lower-frequency applications.

Q: Are there packaging differences between these parts?

A: The Pomona 73008 is listed with unspecified packaging, while the Cinch 133-3701-311 is supplied in bulk packaging. Both are through-hole solder-mount components suitable for PCB assembly.

Q: What compliance certifications apply to both parts?

A: Both the Pomona 73008 and Cinch 133-3701-311 are ROHS3 compliant. The Cinch part is additionally REACH affected, reflecting current regulatory status for active production components.