What is an SSMB Connector?
SSMB connector is one kind of coaxial RF connectors which are smaller in size than SMA connectors and were designed in the 1960s with snap-on coupling. The snap-on design permits rapid connection and disconnection in limited spaces.
SSMB connectors are available either in 50ohm or 75ohm impedance. 50ohm SMB connectors are usually specified up to 4GHz, and 75ohm SMB connectors are specified for only 2GHz.
SSMB connectors are originally designed with female contacts in male bodies or male contacts in female bodies. These connectors are popularly used in telecommunications and automotive applications.
Product | Product Number | Gender | Orientation | Termination | Mounting | Frequency |
|---|---|---|---|---|---|---|
 | Female Body/Male Pin | Straight | Cable-Crimp | Bulkhead Rear Mount | 4GHz | |
| Female Body/Male Pin | Straight | Cable-Crimp | Bulkhead Rear Mount | 4GHz | |
 | Female Body/Male Pin | Straight | Cable-Crimp | Not Applicable | 4GHz | |
 | Female Body/Male Pin | Straight | PCB-Thru Hole | Not Applicable | 4GHz | |
 | Male Body/Female Pin | Right Angle | Cable-Crimp | Not Applicable | 4GHz |
Key Features of SSMB Connector
- High frequency performance: Support High Frequency Range to ensure stable signal transmission.
- Miniaturization design: suitable for space-limited application scenarios.
- Durability and reliability: the use of durable materials, after rigorous testing, to ensure long life and reliability.
- Quick Connection and disconnection: threaded interface designed for quick installation and maintenance.
- Adaptability and compatibility: compatible with SMB connectors and can be upgraded or replaced with existing systems.
Application Area of SSMB Connector
- Wireless Communication: SSMB connectors are commonly used in wireless communication equipment, such as wireless base stations, antenna systems, wireless routers and radio equipment.
- Radio and television: SSMB connectors are widely used in the radio and television industry to connect antennas, tuners, transmitters and receivers.
- Test and measurement: SSMB connectors can be used in test and measurement equipment, such as Spectrum Analyzer, signal generator and Network analyzer, for high frequency signal testing and analysis.
- Military and aerospace: due to its high frequency performance and reliability, SSMB connectors are widely used in the military and aerospace fields for radar systems, communications equipment and navigation systems
- Medical Equipment: SSMB connectors are also used in medical equipment, such as medical monitoring equipment, medical imaging equipment and surgical equipment, to meet the requirements of high-frequency signal transmission.
Fakra Color Codes and Keying Types
Each Fakra connector is color-coded and mechanically keyed to prevent connection errors and ensure system compatibility. Below is an overview of the most common Fakra codes:
Fakra Code | Color | Typical Application |
Fakra C | Blue | GPS antennas |
Fakra D | Green | Radio antennas |
Fakra Z | Violet | Universal/multifunction use |
... | ... | ... |
→ Include a full chart with images if possible.
Fakra Connector Types
Fakra connectors are available in various configurations, including:
- Straight and right-angle plugs and jacks
- Bulkhead and panel-mount versions
- Crimp and solder termination styles
- Cable assemblies for RG-174, RG-316, RG-58, etc.
Explore our full Fakra connector product range for technical specifications and datasheets.
Fakra vs. Other RF Connectors
Feature | Fakra | SMB | SMA |
Automotive standard | ✅ Yes | ❌ No | ❌ No |
Keyed locking | ✅ Yes | ❌ No | ❌ No |
Frequency range | Up to 6 GHz | Up to 4 GHz | Up to 18 GHz |
Application | Automotive | RF modules | Lab & RF test |
How to Choose the Right Fakra Connector?
When selecting a Fakra connector, consider the following:
- Application type (GPS, V2X, camera, etc.)
- Connector code (color/key)
- Cable type and impedance (typically 50Ω)
- Mounting style (straight, right-angle, bulkhead)
- Environmental conditions (temperature, vibration, sealing)
Need help choosing the right Fakra connector? Contact our sales team for technical support.
Related Products
- Fakra C Male Plug for RG174
- Fakra Z Jack Bulkhead Mount
- Fakra to SMA Adapters
→ Include product image thumbnails with links.
FAQ – Fakra Connectors
Q1: What’s the difference between Fakra and standard RF connectors like SMB or BNC?
A: Fakra connectors are based on SMB interfaces but include a plastic housing with color-coding and mechanical keying, designed for secure, vibration-resistant connections in automotive environments.
Q2: Can Fakra connectors be used outside of automotive applications?
A: Yes. While Fakra connectors are optimized for vehicles, they are also widely used in industrial automation, fleet tracking, robotics, and aerospace systems that require secure high-frequency connections.
Q3: What do the colors on Fakra connectors mean?
A: Each Fakra color represents a unique key code and application, helping prevent mismating. For example, blue is often used for GPS, green for telematics, violet for SDARS, etc.
Q4: Do you offer cable assemblies with Fakra connectors?
A: Yes, we provide custom Fakra cable assemblies with various cable types and lengths to meet your specific application requirements.
Q5: What is the typical frequency range supported by Fakra connectors?
A: Fakra connectors support up to 6 GHz, making them suitable for high-frequency RF applications including 5G, radar, and high-speed data.