1.0mm vs 1.85mm(V) vs 2.4mm: Specifications, Key Differences, and Selection Guide
Quick Answer for Engineers
1.0 mm, 1.85 mm (V), and 2.4 mm connectors are precision RF coaxial connectors designed for high-frequency and millimeter-wave applications. While they share similar threaded coupling mechanisms and 50 Ohm impedance, they differ primarily in maximum operating frequency and intended application.
The 2.4 mm connector provides reliable performance up to 50 GHz for general high-frequency RF systems. The 1.85 mm connector extends performance to 67 GHz for demanding measurement applications, while the 1.0 mm connector supports frequencies up to 110 GHz for advanced millimeter-wave testing and next-generation communication technologies.
Quick Summary
・Purpose: All – Precision RF and millimeter-wave measurements
・Maximum Frequency: 2.4 mm – 50 GHz / 1.85 mm – 67 GHz / 1.0 mm – 110 GHz
・Coupling: All – Threaded
・Performance: Higher frequency capability as connector size decreases
・Applications: Select the connector based on your required operating frequency
What Are 1.0 mm Connectors?
1.0 mm connectors are ultra-high-frequency precision RF connectors designed for applications operating up to 110 GHz.
Their extremely small interface minimizes signal loss and reflection at millimeter-wave frequencies, making them suitable for advanced communication systems, semiconductor evaluation, research laboratories, and precision RF measurements.
Specifications
・Impedance: 50 Ohm
・Coupling: Threaded
・Frequency Range: DC to 110 GHz
・Typical Use: Millimeter-wave measurement and advanced RF testing
What Are 1.85 mm Connectors?
1.85 mm (V) connectors are precision RF coaxial connectors designed for high-frequency applications up to 67 GHz.
They provide excellent electrical performance, low VSWR, and reliable mechanical durability, making them widely used in RF test equipment, aerospace, defense, and laboratory measurement systems.
Specifications
・Impedance: 50 Ohm
・Coupling: Threaded
・Frequency Range: DC to 67 GHz
・Typical Use: RF testing, aerospace, defense, and laboratory equipment
What Are 2.4 mm Connectors?
2.4 mm connectors are precision RF coaxial connectors designed for high-frequency applications up to 50 GHz.
They provide excellent electrical performance, low VSWR, and reliable mechanical durability, making them suitable for RF measurement equipment, microwave systems, communication devices, and research laboratories.
Specifications
・Impedance: 50 Ohm
・Coupling: Threaded
・Frequency Range: DC to 50 GHz
・Typical Use: RF testing, microwave systems, communication equipment
Side-by-Side Comparison Table
Primary Purpose / Precision Millimeter-Wave Measurement / High-Frequency RF Measurement / High-Frequency RF Measurement / All are designed for precision RF applications.
Maximum Frequency / DC to 110 GHz / DC to 67 GHz / DC to 50 GHz / Choose the connector based on the required operating frequency.
Coupling Mechanism / Threaded / Threaded / Threaded / All provide secure and stable RF connections.
Impedance / 50 Ohm / 50 Ohm / 50 Ohm / All are standardized for precision RF systems.
Connector Interface / 1.0 mm / 1.85 mm / 2.4 mm / Smaller interfaces support higher operating frequencies.
Typical Applications / Millimeter-wave research, semiconductor testing / RF testing, aerospace, defense / RF measurement, microwave systems, communications / Select according to frequency and application requirements.
Compatibility / Not Directly Compatible / Not Directly Compatible / Not Directly Compatible / Each
Key Differences Explained
1. Maximum Operating Frequency
The primary difference between these connector types is the maximum operating frequency.
・1.0 mm: Up to 110 GHz
・1.85 mm: Up to 67 GHz
・2.4 mm: Up to 50 GHz
Selecting the appropriate connector depends on the highest frequency required by your RF system.
2. Connector Interface Size
As the connector interface becomes smaller, it can support higher frequencies by reducing signal reflections and maintaining better electrical performance.
However, smaller connectors also require greater care during handling and installation.
3. Typical Applications
1.0 mm
・Millimeter-wave research
・Semiconductor evaluation
・Advanced wireless technologies
・Ultra-high-frequency measurements
1.85 mm
・Aerospace
・Defense
・RF testing
・Precision laboratory equipment
2.4 mm
・RF measurement equipment
・Microwave communication
・Laboratory instruments
・General high-frequency systems
4. Which Connector Should You Choose?
Choose the connector according to your required operating frequency.
For applications up to 50 GHz, a 2.4 mm connector is typically sufficient.
For applications requiring 67 GHz, the 1.85 mm connector provides higher frequency capability.
For cutting-edge millimeter-wave systems operating up to 110 GHz, the 1.0 mm connector is the preferred choice.
Are They Compatible?
No.
Although all three connector types are precision RF connectors with threaded coupling, they use different interface dimensions and cannot be directly connected.
Using an incorrect connector may damage the interface and degrade RF performance. Appropriate precision adapters should be used when transitioning between connector types.
How to Choose Between 1.0 mm, 1.85 mm, and 2.4 mm
1. Choose 1.0 mm when...
・Frequencies above 67 GHz are required.
・Millimeter-wave testing is performed.
・Semiconductor characterization is conducted.
・Maximum RF performance is essential.
・Next-generation wireless technologies are being developed.
2. Choose 1.85 mm when…
・Frequencies up to 67 GHz are sufficient.
・General RF measurement equipment is used.
・Aerospace or defense applications require reliable RF performance.
・Long-term mechanical durability is important.
3. Choose 2.4 mm when...
・Frequencies up to 50 GHz are sufficient.
・General high-frequency RF measurements are performed.
・A durable connector for routine testing is preferred.
Technical Specifications Summary
Item / 1.0 mm / 1.85 mm / 2.4 mm
Maximum Frequency / DC to 110 GHz / DC to 67 GHz / DC to 50 GHz
Coupling / Threaded / Threaded / Threaded
Impedance / 50 Ohm / 50 Ohm / 50 Ohm
Connector Interface / 1.0 mm / 1.85 mm / 2.4 mm
Primary Application / Millimeter-wave research and semiconductor testing / RF testing, aerospace, defense / RF measurement, microwave systems, communications
1.0 mm vs 1.85 mm vs 2.4 mm FAQs
QWhat is the main difference between 1.0 mm, 1.85 mm, and 2.4 mm connectors?
QWhat is the main difference between 1.0 mm, 1.85 mm, and 2.4 mm connectors?
The primary difference is their maximum operating frequency. The 2.4 mm connector supports frequencies up to 50 GHz, the 1.85 mm connector up to 67 GHz, and the 1.0 mm connector up to 110 GHz.
QCan these connector types be connected directly?
QCan these connector types be connected directly?
No. Each connector has a different interface size and is not directly compatible with the others. A precision adapter is required when connecting different connector types.
QWhich connector is best for millimeter-wave applications?
QWhich connector is best for millimeter-wave applications?
The 1.0 mm connector is the preferred choice for applications operating above 67 GHz, supporting frequencies up to 110 GHz.
QWhy would I choose a 2.4 mm connector instead of a 1.85 mm connector?
QWhy would I choose a 2.4 mm connector instead of a 1.85 mm connector?
A 2.4 mm connector is an excellent choice for applications operating up to 50 GHz. It offers outstanding RF performance with a robust interface suitable for routine laboratory and communication applications.
QIs the 1.85 mm connector a good balance between performance and durability?
QIs the 1.85 mm connector a good balance between performance and durability?
Yes. The 1.85 mm connector provides higher frequency capability than the 2.4 mm connector while maintaining excellent mechanical durability, making it widely used in aerospace, defense, and RF test systems.
QWhich connector is most commonly used for semiconductor testing?
QWhich connector is most commonly used for semiconductor testing?
The 1.0 mm connector is commonly used for advanced semiconductor characterization and millimeter-wave measurements requiring frequencies up to 110 GHz.
QHow do I choose the right connector?
QHow do I choose the right connector?
Select the connector based on your system's maximum operating frequency, required measurement accuracy, and mechanical requirements. In general, 2.4 mm is suitable up to 50 GHz, 1.85 mm up to 67 GHz, and 1.0 mm up to 110 GHz, making frequency capability the primary selection criterion.
Purchase Guide
Tyclon coaxial connectors and processed coaxial cable products can be purchased directly online using a variety of credit cards.
