N female to 3.5 mm male adapter


SPINNER adapters offer outstanding electrical and mechanical properties

Adapters are used to connect transmission lines with of different interface sizes (so-called inter-type or between-lines adapter) or within one size but different interface genders (so-called within-type or in-line adapter).

SPINNER high frequency adapters are optimized for quality and performance and are designed for the lowest possible reflection factors. The outstanding electrical and mechanical properties, the simple installation and the high reliability make SPINNER high-frequency adapters one of the most efficient and cost-effective transition connectors on the market. Precision adaptors with RF quality grade 0 are available upon request.

The SPINNER N female to 3.5 mm male adapter guarantees excellent, lossless mobile communication quality for use in in-building distributed antenna systems (DAS) or on mobile communication base stations outdoors.

Outstanding RF characteristics, best possible passive intermodulation and VSWR

A N female to 3.5 mm male adapter enables you to reliably transmit radio-frequency signals in the frequency range from DC to 11 GHz.

The adaptor offers a transition from interface N female to interface 3.5 mm male. The connector has a straight direction.

The N-coaxial connectors were named after their inventor Paul Neill, who developed this standard for RF connectors in 1942. Often, however, the name also relates to the Navy Connector. Type N connectors can be used at frequencies up to 11 GHz, high-precision types up to 18 GHz. It is typically used in mobile communication applications with demanding mechanical and electrical requirements. SPINNER exclusively manufactures connectors with non-slotted outer conductor contacts and a special sealing profile in the connector head instead of the flat seal disk, specified by IEC or CECC. This ensures the most reliable sealing function.

3.5 mm coax connectors can be used up to 33 GHz and have low manufacturing tolerances. They are designed for many mating cycles It has an air dielectric interface and closely controlled center conductor support bead providing mechanical interface tolerances similar to hermaphroditic connectors. A 3.5 mm coaxial interface can be mechanically mated with 2.92 mm and SMA connectors, but the connection creates a signal reflection that must be considered.

RF characteristics

Number of interfaces:
Interface type:
N female (50 Ω) per IEC 61169-16
3.5 mm male (50 Ω) per IEC 60169-23
Interface type remark:
3.5 mm compatible with SMA
Interface direction:
Mounting type:
Frequency range:
DC to 11 GHz
VSWR, max.:
1.02 @ DC to 1 GHz
1.04 @ 1 to 2 GHz
1.06 @ 2 to 3 GHz
1.11 @ 3 to 8 GHz
1.15 @ 8 to 11 GHz

Mechanical characteristics

Inner conductor material / surface coating:
copper-alloy / gold-plated
Outer conductor material / coating:
copper-alloy / silver-plated
Insulation material:
Sealing material:
silicone rubber
Degree of protection:
IP 68
Weight, approx.:
28.0 g
21.0 mm

Further remarks

Customs tariff number:



Model – 640682 – iBwave VEX file – 640682-MS.vex


Product data sheet – 640682 – CB-L-208-DS.pdf