4.1-9.5 RF Coaxial Connectors are compact, quick-locking RF interconnects developed for high-power signal transmission in wireless communication systems, particularly in multi-band and multi-operator base station installations. The designation "4.1-9.5" refers to the 4.1mm inner conductor and 9.5mm outer conductor dimensions that define this interface standard, positioned between the 7/16 DIN and smaller connector series in terms of physical size. Engineered to maintain stable 50Ω impedance, 4.1-9.5 RF Coaxial Connectors combine the power handling associated with larger DIN-type connectors and a more compact footprint, supporting high-density antenna and feeder installations where panel space is limited.
As a connector category, 4.1-9.5 RF Coaxial Connectors are produced with a push-pull quick-locking coupling mechanism, allowing faster installation and removal compared with threaded connector types, while maintaining a secure mechanical connection under vibration and outdoor conditions. This series is commonly used in multi-band antenna systems, remote radio units, and base station feeder connections where reduced installation time and space efficiency are both required. Contact components are typically machined from brass or phosphor bronze and finished with silver or gold plating to meet conductivity and corrosion resistance requirements.
Common Types and Characteristics
| Type |
Mounting/Termination |
Gender |
Coupling Mechanism |
Key Characteristics |
| 4.1-9.5 Flange Mount Jack |
Panel flange |
Female |
Push-pull |
Fixed panel installation with quick-locking mating |
| 4.1-9.5 Cable Mount Plug |
Clamp/crimp on flexible cable |
Male |
Push-pull |
Jumper and feeder cable assembly termination |
| 4.1-9.5 Right Angle Connector |
Cable mount |
Male/Female |
Push-pull |
Space-saving routing in compact antenna housings |
| 4.1-9.5 Semi-Rigid Cable Termination |
Solder/clamp on semi-rigid cable |
Male/Female |
Push-pull |
Fixed low-loss termination for internal module wiring |
Application Scenarios and Selection Points
4.1-9.5 RF Coaxial Connectors are widely applied in multi-band base station antennas, remote radio units, small cell installations, and feeder connections where quick-locking coupling and compact size are important. When selecting a connector from this category, the following points are recommended for confirmation:
- Mounting method — flange mount for panel fixation, cable mount for jumper assemblies, or termination for semi-rigid cable
- Frequency range and power rating — matched to the operating frequency and transmitted power of the RF system
- Coupling mechanism — push-pull locking confirmed against equipment mating interface requirements
- Plating material — silver plating for lower insertion loss, gold plating for improved corrosion resistance
- Installation density — compact footprint suited for multi-band, multi-port antenna and radio unit installations
4.1-9.5 vs. 7/16 (L29) Connectors
| Series |
Interface Size |
Coupling Type |
Typical Application |
| 4.1-9.5 |
Compact |
Push-pull, quick-locking |
Multi-band antennas, remote radio units, small cells |
| 7/16 (L29) |
Large |
Threaded |
Base station feeders, high-power RF transmission |
FAQ
Q: What does the "4.1-9.5" designation refer to?
A: The designation refers to the connector's 4.1mm inner conductor diameter and 9.5mm outer conductor diameter, which define the mechanical interface of this connector series.
Q: What coupling mechanism do these connectors use?
A: 4.1-9.5 RF Coaxial Connectors typically use a push-pull quick-locking coupling mechanism, allowing faster mating and de-mating compared with threaded connectors.
Q: How does this series compare with 7/16 (L29) connectors?
A: 4.1-9.5 connectors offer a more compact size and faster coupling than 7/16 (L29) connectors, while still supporting high-power RF transmission suited for multi-band installations.
Q: What mounting and termination options are available in this category?
A: This category includes flange mount, cable mount, and semi-rigid cable termination types, covering panel installation, jumper assemblies, and fixed internal wiring.
4.1-9.5 RF Coaxial Connectors in this category are manufactured by Yangzhou Jingcheng Electronics Co., Ltd., a company specializing in RF coaxial connector design and production since 1999, supported by advanced manufacturing equipment and high precision testing capability across the full 4.1-9.5 connector range.
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