CT3350 N-Type Coaxial Jack-to-Jack Adapter 50 Ohm

Part Overview

The CT3350 is a coaxial connector adapter manufactured by Cal Test Electronics, designed to connect two N-type female jack connectors in a straight, in-line configuration. This adapter operates at impedance of 50 ohms and supports frequencies up to 11 GHz, making it suitable for RF and microwave applications requiring gender conversion between matching connector types.

The CT3350 is classified as obsolete. Identifying equivalent substitute parts is necessary to ensure continued availability for system maintenance, repair, and new production builds where this adapter specification is required.

Substiute Parts

CT3350

Cal Test ElectronicsIn Stock: 1004CT3350 Datasheet

Current PartRFQ

172123

Amphenol RFIn Stock: 1161172123 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CT3350 is determined by the following critical parameters that must remain constant:

• Adapter Configuration: Jack to Jack (female socket to female socket)
• Connector Series: N-type to N-type
• Impedance: 50 ohms
• Frequency Range: Maximum 11 GHz or higher
• Style: Straight, in-line mounting
• Dielectric Material: PTFE
• Fastening Type: Threaded connections
• Center Contact Plating: Gold

The substitute part 172123 (Amphenol RF) satisfies all these critical parameters. Both parts maintain identical adapter functionality, connector gender configuration, impedance specification, and dielectric composition. The substitute is an active product with enhanced operating temperature range and improved availability.

Parameter Comparison

Engineering Selection Recommendations

The CT3350 is obsolete and no longer in active production. The Amphenol RF 172123 is the direct equivalent substitute and is currently in active production status with ROHS3 compliance maintained.

Selection of 172123 is supported by:

• Identical electrical and mechanical specifications for all critical adapter parameters
• Active product status ensuring continued availability and supply chain reliability
• Extended operating temperature range (-65°C ~ 165°C versus -45°C ~ 85°C) providing broader application flexibility
• Maintained RoHS3 compliance for regulatory requirements
• Gold-plated center contacts and PTFE dielectric matching the original specification

Frequently Asked Questions (FAQ)

Q: Can the Amphenol RF 172123 directly replace the Cal Test Electronics CT3350?

A: Yes. Both parts are N-type female-to-female jack adapters with 50-ohm impedance, straight in-line configuration, and identical frequency specifications to 11 GHz. All critical electrical and mechanical parameters match.

Q: What is the difference in operating temperature range between these parts?

A: The CT3350 operates from -45°C to 85°C. The 172123 operates from -65°C to 165°C. The 172123 supports a wider temperature envelope, making it suitable for applications requiring extended thermal performance.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the CT3350 and 172123 are ROHS3 compliant.

Q: What packaging is available for the substitute part?

A: The 172123 is supplied in bag packaging.

Q: Why is the CT3350 listed as obsolete?

A: The CT3350 has been discontinued by Cal Test Electronics. The 172123 from Amphenol RF is the active equivalent product recommended for new designs and replacement applications.

Q: Are the center contact materials identical?

A: The CT3350 uses beryllium copper and brass for center contacts. The 172123 uses phosphor bronze. Both materials are compatible with the gold plating and maintain electrical performance within the specified frequency and impedance parameters.