Coax Series

Coaxial underwater connections in 50 Ω and 75 Ω versions. The catalogue shows inline connectors, bulkhead connectors, dummy connectors and locking sleeves.

50 Ω / 75 Ω coaxial specifications · 7 contacts

Mated pressure rating
600 Bar / 8,700 psi
Insulation resistance
> 200 MΩ
Contact resistance
< 10 mΩ (< 0.01 Ω)
Materials and operating conditions
Coax contact material
Gold-plated contacts
Connector body
Chloroprene rubber
O-ring material
Nitrile

Products

Bulkhead · 7-contact

Female50CXBH6F / 75CXBH6F
Male50CXBH6M / 75CXBH6M

Female · 50CXBH6F / 75CXBH6F. Bulkhead form with 7 contacts for the Coax Series.

Male · 50CXBH6M / 75CXBH6M. Bulkhead form with 7 contacts for the Coax Series.

Technical specifications
ParameterFemale 50CXBH6F / 75CXBH6FMale 50CXBH6M / 75CXBH6M
50 Ω (HF50CXBH6F)75 Ω (HF75CXBH6F)50 Ω (HF50CXBH6M)75 Ω (HF75CXBH6M)
Impedance50 Ω75 Ω50 Ω75 Ω
Coaxial Voltage Rating800 V max nominal600 V max nominal800 V max nominal600 V max nominal
Recommended Max Frequency3.0 GHz3.0 GHz3.0 GHz3.0 GHz
Attenuation @ 0.9 GHz9.9 dB / 10 m6.3 dB / 10 m9.9 dB / 10 m6.3 dB / 10 m
Attenuation @ 1.5 GHz13.4 dB / 10 m8.6 dB / 10 m13.4 dB / 10 m8.6 dB / 10 m
Attenuation @ 2.4 GHz19.3 dB / 10 m12.8 dB / 10 m19.3 dB / 10 m12.8 dB / 10 m
Attenuation @ 3.0 GHz22.5 dB / 10 m15.7 dB / 10 m22.5 dB / 10 m15.7 dB / 10 m
Insulation Resistance> 200 MΩ> 200 MΩ
Contact Resistance< 10 mΩ (< 0.01 Ω)< 10 mΩ (< 0.01 Ω)
Qualified Pressure — Mated600 Bar / 8,700 psi600 Bar / 8,700 psi
Mating TypeDry-mate only — not suitable for open-face pressure or wet matingDry-mate only — not suitable for open-face pressure or wet mating
Operating Temperature (water)−4 °C to +60 °C−4 °C to +60 °C
Operating Temperature (air)−40 °C to +60 °C−40 °C to +60 °C
Coax Contact MaterialGold-plated contactsGold-plated contacts
Connector BodyChloroprene rubberChloroprene rubber
Bulkhead Body OptionsBrass, 316L stainless steel, titanium, anodised aluminiumBrass, 316L stainless steel, titanium, anodised aluminium
O-Ring MaterialNitrileNitrile
Locking SleevePOM or stainless steel (mandatory before deployment)POM or stainless steel (mandatory before deployment)
Snap RingsDLSA stainless steel AISI 302DLSA stainless steel AISI 302
Inline CablePUR jacket with RG58 coaxPUR jacket with Mini-RG59 coaxPUR jacket with RG58 coaxPUR jacket with Mini-RG59 coax
Bulkhead LeadRG316 coax (3.3 ft / 100 cm)RG179 coax (3.3 ft / 100 cm)RG316 coax (3.3 ft / 100 cm)RG179 coax (3.3 ft / 100 cm)
Electric Contacts6—6—
Voltage (electric contacts)300 V DC/AC rms—300 V DC/AC rms—
Current (electric contacts)5 A per contact (max 20 A per connector)—5 A per contact (max 20 A per connector)—
Electric Contact Material (female)Gold-plated brass UNS-C36000—Gold-plated brass UNS-C36000—
Electric Contact Material (male)Gold-plated beryllium copper—Gold-plated beryllium copper—
Inline cable (electric)6 × 20 AWG, 0.52 mm² conductors (with RG58/Mini-RG59)—6 × 20 AWG, 0.52 mm² conductors (with RG58/Mini-RG59)—
Bulkhead lead (electric)6 × 20 AWG, 0.52 mm² coloured PTFE (with RG316/RG179)—6 × 20 AWG, 0.52 mm² coloured PTFE (with RG316/RG179)—
Connector Style7-contact (1 coax + 6 electric) Female — Bulkhead7-contact (1 coax + 6 electric) Male — Bulkhead

In-line · 7-contact

Connector formHF50CXIL6F / HF75CXIL6F

HF50CXIL6F / HF75CXIL6F. In-line form with 7 contacts for the Coax Series.

Technical specifications
Parameter50 Ω (HF50CXIL6F)75 Ω (HF75CXIL6F)
Impedance50 Ω75 Ω
Coaxial Voltage Rating800 V max nominal600 V max nominal
Recommended Max Frequency3.0 GHz3.0 GHz
Attenuation @ 0.9 GHz9.9 dB / 10 m6.3 dB / 10 m
Attenuation @ 1.5 GHz13.4 dB / 10 m8.6 dB / 10 m
Attenuation @ 2.4 GHz19.3 dB / 10 m12.8 dB / 10 m
Attenuation @ 3.0 GHz22.5 dB / 10 m15.7 dB / 10 m
Insulation Resistance> 200 MΩ
Contact Resistance< 10 mΩ (< 0.01 Ω)
Qualified Pressure — Mated600 Bar / 8,700 psi
Mating TypeDry-mate only — not suitable for open-face pressure or wet mating
Operating Temperature (water)−4 °C to +60 °C
Operating Temperature (air)−40 °C to +60 °C
Coax Contact MaterialGold-plated contacts
Connector BodyChloroprene rubber
Bulkhead Body OptionsBrass, 316L stainless steel, titanium, anodised aluminium
O-Ring MaterialNitrile
Locking SleevePOM or stainless steel (mandatory before deployment)
Snap RingsDLSA stainless steel AISI 302
Inline CablePUR jacket with RG58 coaxPUR jacket with Mini-RG59 coax
Bulkhead LeadRG316 coax (3.3 ft / 100 cm)RG179 coax (3.3 ft / 100 cm)
Electric Contacts6—
Voltage (electric contacts)300 V DC/AC rms—
Current (electric contacts)5 A per contact (max 20 A per connector)—
Electric Contact Material (female)Gold-plated brass UNS-C36000—
Electric Contact Material (male)Gold-plated beryllium copper—
Inline cable (electric)6 × 20 AWG, 0.52 mm² conductors (with RG58/Mini-RG59)—
Bulkhead lead (electric)6 × 20 AWG, 0.52 mm² coloured PTFE (with RG316/RG179)—
Connector Style7-contact (1 coax + 6 electric) Female — In-Line

In-line · 7-contact

MaleHF50CXIL6M / HF75CXIL6M

Male · HF50CXIL6M / HF75CXIL6M. In-line form with 7 contacts for the Coax Series.

Technical specifications
Parameter50 Ω (HF50CXIL6M)75 Ω (HF75CXIL6M)
Impedance50 Ω75 Ω
Coaxial Voltage Rating800 V max nominal600 V max nominal
Recommended Max Frequency3.0 GHz3.0 GHz
Attenuation @ 0.9 GHz9.9 dB / 10 m6.3 dB / 10 m
Attenuation @ 1.5 GHz13.4 dB / 10 m8.6 dB / 10 m
Attenuation @ 2.4 GHz19.3 dB / 10 m12.8 dB / 10 m
Attenuation @ 3.0 GHz22.5 dB / 10 m15.7 dB / 10 m
Insulation Resistance> 200 MΩ
Contact Resistance< 10 mΩ (< 0.01 Ω)
Qualified Pressure — Mated600 Bar / 8,700 psi
Mating TypeDry-mate only — not suitable for open-face pressure or wet mating
Operating Temperature (water)−4 °C to +60 °C
Operating Temperature (air)−40 °C to +60 °C
Coax Contact MaterialGold-plated contacts
Connector BodyChloroprene rubber
Bulkhead Body OptionsBrass, 316L stainless steel, titanium, anodised aluminium
O-Ring MaterialNitrile
Locking SleevePOM or stainless steel (mandatory before deployment)
Snap RingsDLSA stainless steel AISI 302
Inline CablePUR jacket with RG58 coaxPUR jacket with Mini-RG59 coax
Bulkhead LeadRG316 coax (3.3 ft / 100 cm)RG179 coax (3.3 ft / 100 cm)
Electric Contacts6—
Voltage (electric contacts)300 V DC/AC rms—
Current (electric contacts)5 A per contact (max 20 A per connector)—
Electric Contact Material (female)Gold-plated brass UNS-C36000—
Electric Contact Material (male)Gold-plated beryllium copper—
Inline cable (electric)6 × 20 AWG, 0.52 mm² conductors (with RG58/Mini-RG59)—
Bulkhead lead (electric)6 × 20 AWG, 0.52 mm² coloured PTFE (with RG316/RG179)—
Connector Style7-contact (1 coax + 6 electric) Male — In-Line

Technical documents

50 Ω / 75 Ω coaxial connectorsPDF page 14–15

Both impedance versions share external dimensions. Consult the separate frequency and attenuation data for each version.