1 5/8" SMS-1 to 1 5/8" EIA adapter product photo Front View L
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1 5/8" SMS-1 to 1 5/8" EIA adapter


SPINNER adapters offer outstanding electrical and mechanical properties

Adapters are used to connect transmission lines with 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 1 5/8" SMS-1 to 1 5/8" EIA adapter ensures optimal performance for signal transmission between transmitter and antenna in broadcast stations.

Outstanding RF characteristics, best possible passive intermodulation and VSWR

A 1 5/8" SMS-1 to 1 5/8" EIA adapter enables you to reliably transmit radio-frequency signals in the frequency range from DC to 2.7 GHz.

The adaptor offers a transition from interface 1 5/8" SMS-1 to interface 1 5/8" EIA. The connector has a straight direction.

The SPINNER quick clamp system called SMS is based on the international rigid line standards like EIA STD RS 225, 339 IEC and DIN EN 122150. The different parts are connected by coupling elements and fixed together with clamps. The advantage of the SMS system is that the customer can easily cut the rigid line to length on site, without flaring or brazing. The assembly is therefore very simple and no special tools are required. The SMS system is provided solely for indoor installation.

Coaxial flange connectors, generally known as “EIA flanges”, are connected by a coupling element. The flange connector system complies with international standards EIA STD RS-225, 339 IEC, DIN EN 122150 and MIL-F 24044. The EIA flange connectors are excellently qualified suited for pressurized systems and for outdoor installations. 1 5/8" EIA connectors are used to link two elements of a rigid or semi-rigid high performance coaxial transmission line for radio frequency signals. Typically, these are operated in systems for very high power transmission (from kW to MW), e.g. in DAB, DVB or FM broadcast systems or in high-energy applications in research facilities (particle accelerator, plasmatron).

RF characteristics

Number of interfaces:
Interface type:
1 5/8" SMS-1 (50 Ω)
1 5/8" EIA (50 Ω) per IEC 60339-2
Interface direction:
Mounting type:
Frequency range:
DC to 2.7 GHz
Cut-off frequency:
3.2 GHz (H11 mode)
Average power rating:
19.6 kW @ 100 MHz (at +40 °C ambient temperature)
13 kW @ 230 MHz (at +40 °C ambient temperature)
7 kW @ 800 MHz (at +40 °C ambient temperature)
Proof voltage rating:
7000 V
Proof voltage rating remark:
(at sea level (NN))
Insertion loss coefficient /100m:
0.75 dB @ 100 MHz (at +20 °C ambient temperature)
1.13 dB @ 230 MHz (at +20 °C ambient temperature)
2.19 dB @ 800 MHz (at +20 °C ambient temperature)

Mechanical characteristics

Weight, approx.:
210.0 g

Further remarks

• outer conductor system aluminum / aluminum-alloy
• quick and simple assembly
• no special tools required
• PTFE insulation
• for indoor application
Customs tariff number:



Product data sheet – B13487C1000 – CB-L-188-189-DS.pdf


Installation instructions – B13487C1000 – M36124.pdf


Installation instructions – B13487C1000 – M36129.pdf