4.3-10 male screw connector LF 1 5/8"-50 Spinner MultiFit®


SPINNER Connectors - Low-Loss And Reliable Connection For Highest Requirements

Connectors for the transmission of high-frequency signals are used in a wide variety of industries such as mobile communication, broadcast, measurement, satellite communication or in radar technology. SPINNER connectors ensure optimal, low-loss signal transmission and extremely sustainable, cost-effective connections. SPINNER connectors are robust and resistant in various climatic environments - from the sea to the desert or even space.

They guarantee excellent electrical and mechanical performance values such as stability for enduring connectivity, meeting the highest sealing requirements and high performance for transmission parameters.

Spinner MultiFit® connectors for quick and secure installations

A 4.3-10 male screw connector LF 1 5/8"-50 Spinner MultiFit® is one of the most versatile connectors of our portfolio. It transmits signals maintenance-free and reliably for decades without additional effort. A quick and secure two-step installation can be done in about two minutes. Before mounting the Spinner MultiFit® connector an O-ring is pushed onto the outer conductor to seal it. Then the Spinner MultiFit® connector is pushed on top of it and locked onto the outer conductor. This provides an excellent seal to prevent the ingress of moisture or dust. Thus we achieve an outstanding lossless mobile communication quality in a frequency range from DC to 2.75 GHz for in-building Distributed Antenna Systems (DAS) or on mobile communication base stations outdoors. In addition, a 4.3-10 male screw connector LF 1 5/8"-50 Spinner MultiFit® is also suitable for a variety of demanding applications in industry or broadcasting (DVB, DAB, FM), SatCom or Radar.

A 4.3-10 male screw connector LF 1 5/8"-50 Spinner MultiFit® is ideally suited for installation on LF 1 5/8" annular corrugated copper LF cables.

The connector has a straight direction.

The 4.3-10 connector system was designed to meet the latest requirements in mobile communication in terms of size, robustness, performance, and other parameters. Its small footprint supports the use of smaller components, mitigates risks if equipment is assembled without due care, and delivers outstanding electrical performance.

The screw connection, especially when mounted with a suitable torque wrench, provides the strongest hold and a constantly secure fit of the cable. In addition, the center slots in the contacts provide high contact pressure between the cable and the connector for optimum conductivity and signal strength.

RF characteristics

Number of interfaces:
Interface type:
4.3-10 male (50 Ω) per IEC 61169-54 [screw]
Interface direction:
Mounting type:
Frequency range:
DC to 2.75 GHz
VSWR, max.:
1.02 @ DC to 1.0 GHz
1.03 @ 1.0 to 2.2 GHz
1.06 @ 2.2 to 2.75 GHz

Mechanical characteristics

Cable entry type:
Spinner MultiFit®
Suitable cable:
LF 1 5/8
Cable manufacturer types:
SPINNER: SpinnerFlex® LF 1 5/8"-50
Acome: HPL50-1 5/8 F
Andrew: AVA7-50
Draka: RFA 1 5/8"-50, RFA 1 5/8"-50 AL
Eupen: EC7-50 A
Hansen: RF 50 1-5/8"
Leoni: FlexLine 1 5/8" R LowLoss
LS Cable: LHF 42D Low Loss, HFC 42D Flexible Foam
RFS: LCF 158-50 A, LCF 158-50 L
Inner conductor material / surface coating:
copper-alloy / silver-plated
Outer conductor material / coating:
copper-alloy / CuSnZn-plated
Insulation material:
Sealing material:
silicone rubber
Degree of protection:
IP 68
Degree of protection remark:
Weight, approx.:
600.0 g

Scope of delivery & accessories

Delivery scope:
installation instructions

Further remarks

Customs tariff number:



Product data sheet – 431122 – 431122-DS.pdf


Model – 431122 – iBwave VEX file – 431122-MS.vex


Installation instructions – 431122 – M32126.pdf