CT3347 BNC to N Coaxial Adapter Connector

Part Overview

The CT3347 is a coaxial adapter connector that converts between BNC Plug (male pin) and N Jack (female socket) interfaces. This component operates at impedance of 50 Ohms with a maximum frequency rating of 10 GHz and supports operating temperatures from -55°C to 155°C. The part is currently classified as obsolete, making identification of suitable alternatives necessary for ongoing system maintenance and new designs requiring this adapter configuration.

Substiute Parts

CT3347
Cal Test ElectronicsIn Stock: 1023CT3347 Datasheet
CT3347
Current Part
CT2763
Cal Test ElectronicsIn Stock: 835CT2763 Datasheet
CT2763
MFR Recommended

Key Parameters

Parameter Value
Manufacturer Part Number CT3347
Manufacturer Cal Test Electronics
Category Coaxial Connectors (RF)
Adapter Type Plug to Jack
Adapter Series BNC to N
Convert From BNC Plug, Male Pin
Convert To N Jack, Female Socket
Impedance 50 Ohms
Style Straight
Mounting Type Free Hanging (In-Line)
Fastening Type Bayonet Lock, Threaded
Frequency - Max 10 GHz
Center Contact Plating Gold
Body Material Brass
Operating Temperature -55°C ~ 155°C
RoHS Status ROHS3 Compliant
Product Status Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the CT3347 is determined by the following critical parameters that must remain constant:

  • Adapter series configuration: BNC to N conversion
  • Gender configuration: BNC Plug (male pin) to N Jack (female socket)
  • Impedance: 50 Ohms
  • Style: Straight
  • Mounting type: Free Hanging (In-Line)
  • Fastening mechanism: Bayonet Lock, Threaded
  • Center contact plating: Gold
  • Body material: Brass
  • RoHS compliance: ROHS3 Compliant

The substitute part CT2763 maintains all critical electrical and mechanical parameters required for functional equivalence within the BNC to N adapter category. Differences in frequency rating, operating temperature range, body finish, and dielectric material do not prevent substitution when application requirements fall within the substitute's specifications.

Parameter Comparison

Parameter CT3347 (Main Part) CT2763 (Substitute)
Manufacturer Part Number CT3347 CT2763
Manufacturer Cal Test Electronics Cal Test Electronics
Category Coaxial Connectors (RF) Coaxial Connectors (RF)
Adapter Type Plug to Jack Plug to Jack
Adapter Series BNC to N BNC to N
Convert From BNC Plug, Male Pin BNC Plug, Male Pin
Convert To N Jack, Female Socket N Jack, Female Socket
Impedance 50 Ohms 50 Ohms
Style Straight Straight
Mounting Type Free Hanging (In-Line) Free Hanging (In-Line)
Fastening Type Bayonet Lock, Threaded Bayonet Lock, Threaded
Frequency - Max 10 GHz 4 GHz
Center Contact Plating Gold Gold
Body Material Brass Brass
Body Finish White Bronze Nickel
Center Contact Material Beryllium Copper Beryllium Copper, Brass
Dielectric Material Not specified Polytetrafluoroethylene (PTFE)
Operating Temperature -55°C ~ 155°C -20°C ~ 80°C
RoHS Status ROHS3 Compliant ROHS3 Compliant
Product Status Obsolete Active

Engineering Selection Recommendations

The CT2763 is the manufacturer-recommended substitute for the obsolete CT3347. Both parts maintain identical adapter series configuration, impedance, and mechanical interface specifications required for BNC to N conversion applications.

Selection of CT2763 over CT3347 is supported by the following factors:

  • CT2763 maintains active product status with current manufacturing support
  • Both parts achieve ROHS3 compliance and REACH unaffected status
  • Identical impedance and connector gender configuration ensure electrical compatibility
  • Matching fastening mechanism and mounting type preserve mechanical interchangeability

Applications operating within the CT2763 frequency range (4 GHz maximum) and temperature range (-20°C to 80°C) can directly substitute this part for the obsolete CT3347. Applications requiring the extended frequency capability (10 GHz) or temperature extremes (-55°C to 155°C) of the original part must evaluate CT2763 specifications against system requirements before implementation.

Frequently Asked Questions (FAQ)

Q: Can CT2763 directly replace CT3347 in all applications?

A: CT2763 is electrically and mechanically compatible with CT3347 for BNC to N adapter applications. Substitution is valid when system operating conditions fall within CT2763 specifications: maximum frequency of 4 GHz and operating temperature range of -20°C to 80°C.

Q: What are the key differences between CT3347 and CT2763?

A: The primary differences are product status (CT3347 is obsolete; CT2763 is active), maximum frequency rating (10 GHz versus 4 GHz), operating temperature range (-55°C to 155°C versus -20°C to 80°C), body finish (white bronze versus nickel), and dielectric material specification (unspecified versus PTFE). All critical adapter parameters remain identical.

Q: Are there packaging differences between these parts?

A: CT3347 packaging is not specified in available documentation. CT2763 is supplied in bulk packaging. Packaging configuration should be confirmed with the supplier based on application requirements.

Q: Do both parts meet regulatory compliance requirements?

A: Both CT3347 and CT2763 are ROHS3 compliant and REACH unaffected. Both carry EAR99 export classification and 8536.69.4010 HTSUS code.

Q: What determines whether CT2763 is suitable for my application?

A: Substitution suitability depends on whether your system operates within these CT2763 limits: maximum frequency of 4 GHz, operating temperature range of -20°C to 80°C, and 50 Ohm impedance requirement. If your application requires the extended frequency or temperature capabilities of CT3347, alternative solutions must be evaluated.

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