CT3340 Coaxial Connector Adapter - Equivalent & Substitute Parts

Part Overview

The CT3340 is a coaxial connector adapter manufactured by Cal Test Electronics, designed to convert between N Plug (male pin) and SMA Plug (male pin) connectors. This adapter operates at 50 Ohms impedance with a maximum frequency rating of 12 GHz and supports operating temperatures from -55°C to 155°C. The CT3340 is classified as obsolete, making identification of suitable substitute parts essential for ongoing system maintenance and component procurement.

Substiute Parts

CT3340

Cal Test ElectronicsIn Stock: 1066CT3340 Datasheet

Current PartRFQ

CT3340A

Cal Test ElectronicsIn Stock: 1123CT3340A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CT3340 is determined by the following critical parameters:

• Impedance: 50 Ohms (mandatory match)
• Adapter Series: SMA to N conversion capability
• Center Gender: Male to Male pin configuration
• Frequency Rating: Maximum 12 GHz or higher
• Mounting Type: Free Hanging (In-Line)
• Connector Type: Plug to Plug adapter
• Dielectric Material: PTFE
• Body Material and Finish: Brass with Nickel finish
• Center Contact Plating: Gold
• Operating Temperature Range: -55°C to 155°C or compatible range
• Compliance: ROHS3 Compliant, REACH Unaffected

The CT3340A qualifies as a direct substitute based on matching all critical electrical and mechanical parameters. The primary distinction is connector orientation: CT3340A converts from SMA Plug to N Plug, whereas CT3340 converts from N Plug to SMA Plug. Both adapters are functionally equivalent for bidirectional RF signal transmission in 50 Ohm systems.

Parameter Comparison

Engineering Selection Recommendations

The CT3340A is the designated substitute for the obsolete CT3340. Both parts maintain identical electrical specifications (50 Ohms, 12 GHz maximum frequency) and mechanical construction (brass body with nickel finish, PTFE dielectric, gold-plated center contacts). The CT3340A holds Active product status, ensuring continued availability and supply chain reliability compared to the obsolete CT3340.

Both parts satisfy ROHS3 compliance and REACH regulatory requirements, making them suitable for applications requiring environmental and regulatory adherence. The functional equivalence between CT3340 and CT3340A is established through matching impedance, frequency rating, connector gender configuration, and material specifications. Selection between the two depends solely on connector orientation requirements within the application circuit.

Frequently Asked Questions (FAQ)

Q: Can CT3340A directly replace CT3340 in all applications?

A: CT3340A is electrically and mechanically equivalent to CT3340. The difference is connector orientation: CT3340 converts N Plug to SMA Plug, while CT3340A converts SMA Plug to N Plug. Both are functionally interchangeable for RF signal transmission in 50 Ohm systems. Verify the connector orientation required by your application before selection.

Q: What is the impedance specification for these adapters?

A: Both CT3340 and CT3340A operate at 50 Ohms impedance, the standard for RF coaxial systems. This impedance must be maintained throughout the signal path for proper system performance.

Q: Are these adapters rated for high-frequency applications?

A: Both adapters support frequencies up to 12 GHz maximum. Applications requiring operation above 12 GHz require alternative components with higher frequency ratings.

Q: What is the operating temperature range?

A: CT3340 operates from -55°C to 155°C. CT3340A operating temperature range is not specified in available documentation. Confirm temperature requirements for your application environment.

Q: Are these adapters RoHS compliant?

A: Both CT3340 and CT3340A are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory standards for electronic components.

Q: What packaging options are available?

A: CT3340 is supplied in standard packaging. CT3340A is available in Bulk packaging. Confirm packaging requirements for your procurement and assembly processes.

Q: Why is CT3340 listed as obsolete?

A: CT3340 has been discontinued by the manufacturer. CT3340A remains in Active production status and is the recommended replacement for new designs and ongoing component procurement.