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Product

Elastic-core aramid-reinforced oceanographic coaxial tow cable50 Ω FCE50 & 75 Ω FCE75600–1,000 V Elastic CoreUp to 20,000 lbs MBL

FCE50 / FCE75 50 Ω & 75 Ω Elastic-Core Aramid Sonar Tow CableMIL-C-17 / Subsea · 0.6/1 kV · Elastic-core aramid-reinforced oceanographic coaxial

FCE50 / FCE75 Series 50-Ohm & 75-Ohm Elastic-Core Aramid-Reinforced Polyurethane Oceanographic Coaxial Tow Cable (MIL-C-17 / Subsea, 0.6/1 kV, -30 °C to +80 °C, min. bend radius 10 × OD).

Water-resistant

EMC screen

Anti-torsion braid

Oil-resistant

Configuration

Order designation: FCE50 Config A (Compact)
Outer Ø ≈: 10.4 mm
Net weight ≈: 155 kg/km
Tensile rating ≈: 4.5 kN
Core / stranding: Stranded tinned Cu (IEC 60228 / ASTM)

All sizes (3)

Request a quote Datasheet WhatsApp info@tebaoflex.com

Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum

Rated voltage: 0.6/1 kV
Operating temp.: −30…+80 °C
Min. bend radius: 10 × OD
Core / conductor: 50 Ω
Outer protection: Aramid+Black PUR
Standard: MIL-C-17/Subsea

Typical values for this cable type, based on MIL-DTL-17 / Subsea 50 Ω & 75 Ω Sonar Coax Standard — confirmed in the datasheet and quotation for your order.

Application fit

Is FCE50 / FCE75 TOW right for your machine?

FCE50 / FCE75 Series 50-Ohm & 75-Ohm Elastic-Core Aramid-Reinforced Polyurethane Oceanographic Coaxial Tow Cable (MIL-C-17 / Subsea, 0.6/1 kV, -30 °C to +80 °C, min. bend radius 10 × OD).

Immersion & wet locations

Suitable

Water-blocked core matrix and hydrolysis-resistant subsea jacketing withstand continuous deepwater hydrostatic pressure.

Vertical / spreader reel

Suitable

Torque-balanced aramid or contra-helical steel armour supports vertical winch deployment without hockling.

Offshore platform & shipboard deck trays

Suitable

Marine-grade outer sheath and armour package resist LARS sheave abrasion, UV exposure and salt-spray corrosion.

Trailing & towing

Suitable

High tensile breaking strength supports underwater towing, ROV excursion and seabed plough/trencher duty.

Energy chain / drag chain

Not suitable

Subsea umbilical and tow construction is not intended for high-cycle indoor factory drag chains.

Use Drag-Chain Servo Cable

Typical machinesMarine & Offshore CableWork-Class & Observation ROV SystemsOffshore Wind & Subsea Power GridsOceanographic, Sonar & Seismic SurveyCommercial Diving & Subsea Intervention

Construction

Layer by layer

Shown: FCE50 / FCE75 TOW (MIL-DTL-17 / Subsea 50 Ω & 75 Ω Sonar Coax Standard) featuring high-elongation elastic center core, 50 ω / 75 ω pe coaxial dielectric and aramid strength braid & pur jacket (5-layer construction).

Schematic, not to scale — generated from the layer data

#	Layer	Material & reference
1	High-Elongation Elastic Center Core	Special elastic stranded tinned copper core (2× elongation, prevents Z-kinking)
2	50 Ω / 75 Ω PE Coaxial Dielectric	Low-dielectric-constant polyethylene insulation (FCE50: 50 Ω, FCE75: 75 Ω)
3	Braided Tinned Copper Shield	High-coverage tin-plated copper braid serving as return conductor & shield
4	Elastomer Moisture-Barrier Jacket	Rubber-based elastomer inner barrier jacket with very low moisture permeability
5	Aramid Strength Braid & PUR Jacket	Torque-balanced Aramid braid (2,500–20,000 lbs) + abrasion-resistant PUR jacket

FCE50 / FCE75 TOW — Standard Subsea & Marine Execution

Built to MIL-DTL-17 / Subsea 50 Ω & 75 Ω Sonar Coax Standard with high-elongation elastic center core and aramid strength braid & pur jacket

FCE50 / FCE75 TOW — Custom Drum Length & Termination Kit

Available in custom continuous subsea/wellbore drum lengths or pre-terminated assemblies

FCE50 / FCE75 TOW — Routine & Hydrostatic Test Certified

Supplied with EN 10204 3.1 routine dielectric, resistance & pressure/dimensional report

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on MIL-DTL-17 / Subsea 50 Ω & 75 Ω Sonar Coax Standard. Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage / transmission duty: 0.6/1 kV (MIL-DTL-17 / Subsea 50 Ω & 75 Ω Sonar Coax Standard)
Core / conductor construction: High-Elongation Elastic Center Core — Special elastic stranded tinned copper core (2× elongation, prevents Z-kinking)
Primary dielectric / buffering: 50 Ω / 75 Ω PE Coaxial Dielectric — Low-dielectric-constant polyethylene insulation (FCE50: 50 Ω, FCE75: 75 Ω)

Thermal

Continuous operating temperature: −30…+80 °C (subsea, marine & submersible duty)
Short-circuit / peak thermal rating: Verified thermal stability per MIL-DTL-17 / Subsea 50 Ω & 75 Ω Sonar Coax Standard
Storage & transport temperature: −40…+80 °C on export wooden/steel drum

Mechanical

Outer protection / armouring: Aramid Strength Braid & PUR Jacket — Torque-balanced Aramid braid (2,500–20,000 lbs) + abrasion-resistant PUR jacket
Minimum bending radius: 10 × OD
Hydrostatic, tensile & crush duty: Elastomer Moisture-Barrier Jacket — Rubber-based elastomer inner barrier jacket with very low moisture permeability

Resistance

Hydrostatic pressure & water blocking: Engineered for continuous submersion and hydrostatic integrity per MIL-DTL-17 / Subsea 50 Ω & 75 Ω Sonar Coax Standard
Seawater, oil & chemical resistance: Resistant to seawater hydrolysis, hydraulic oils and abrasion per MIL-DTL-17 / Subsea 50 Ω & 75 Ω Sonar Coax Standard
RoHS & REACH compliance: RoHS 2 (2011/65/EU + 2015/863) & REACH SVHC compliant

Reference standards

Governing standard: MIL-DTL-17 / Subsea 50 Ω & 75 Ω Sonar Coax Standard
Environmental & test standards: IEC 60228 / IEC 60332 / ISO 13628-5 / EN 10204
Quality management & inspection: ISO 9001:2015 & EN 10204 3.1 factory routine inspection

Identification

Model designation: FCE50 / FCE75 TOW
Sheath colour & metre marking: Continuous metre-marked black outer finish (Aramid + Black PUR)
Customs tariff (HS): 8544.49 / 8544.60 / 8544.70

Sizes

3 standard FCE50 / FCE75 TOW subsea & marine configurations

Manufactured to MIL-DTL-17 / Subsea 50 Ω & 75 Ω Sonar Coax Standard for subsea, offshore, deep-well and marine applications.

Dimensions, tensile load & weights
Order designation	Configuration	Core / stranding	Outer Ø ≈ mm	Net weight ≈ kg/km	Tensile rating kN ≈	Min. bend R mm
FCE50 / FCE75 TOW Construction Schedule (−30…+80 °C)
FCE50 Config A (Compact)	4×2×24 AWG + 2×18 AWG (or 4C)	Stranded tinned Cu (IEC 60228 / ASTM)	10.4	155	4.5	85
FCE50 Config B (Standard)	4×2×20 AWG + 4×16 AWG (or 8C)	Stranded tinned Cu (IEC 60228 / ASTM)	13.3	265	9.6	110
FCE50 Config C (Heavy Hybrid)	8×2×20 AWG + 4×12 AWG (or 12C)	Stranded tinned Cu (IEC 60228 / ASTM)	16.6	420	18.5	140

Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
Custom core cross-sections, pair/fibre counts, armour grades and factory drum lengths available per MIL-DTL-17 / Subsea 50 Ω & 75 Ω Sonar Coax Standard.

Electrical, optical & thermal parameters
Configuration	Max. DC R₂₀ / Atten. Ω/km or dB/km	Rating / Impedance	Operating temp.
4×2×24 AWG + 2×18 AWG (or 4C)	28.40	0.6/1 kV (45–100 Ω data)	−30…+80 °C
4×2×20 AWG + 4×16 AWG (or 8C)	10.70	0.6/1 kV (45–100 Ω data)	−30…+80 °C
8×2×20 AWG + 4×12 AWG (or 12C)	5.40	0.6/1 kV (High-Power Hybrid)	−30…+80 °C

Every production length undergoes routine conductor DC resistance, high-voltage dielectric or OTDR continuity and dimensional verification.

Quality & approvals

Testing & inspection

Routine tests on every production length, sample and type tests per batch — documented on an EN 10204 3.1 inspection certificate.

ConductorClass 5 stranding
Spark test100 % in-line
Lay-upCores, earth, fillers
SheathingInner, braid / screen, outer
Electrical testsAC voltage, resistance
DimensionsOD, wall thickness
Inspection documents & dispatchDrum & dispatch

Testing & inspection	Test value / reference	Frequency
Routine tests
Conductor resistance, continuity & dimensional verification (MIL-DTL-17 / Subsea 50 Ω & 75 Ω Sonar Coax Standard)	DC resistance at 20 °C / optical attenuation and outer diameter within MIL-DTL-17 / Subsea 50 Ω & 75 Ω Sonar Coax Standard tolerances	Every manufactured drum length
High-voltage dielectric & insulation resistance test (MIL-DTL-17 / Subsea 50 Ω & 75 Ω Sonar Coax Standard)	Zero dielectric breakdown and verified insulation resistance for 0.6/1 kV rating	Every manufactured drum length
Sample tests
Hydrostatic pressure, water-blocking & mechanical endurance qualification (MIL-DTL-17 / Subsea 50 Ω & 75 Ω Sonar Coax Standard)	Verified submersion integrity, tensile load and thermal stability across −30…+80 °C	Type qualification & periodic lot audit

Inspection certificate

Issued with every drum, listing the routine test results for that length.

Product approvals

MIL-C-17 / Subsea CompliantEN 10204 3.1 Factory Test CertificateCE, RoHS 2 (2011/65/EU) & REACH

Company certificates

ISO 9001ISO 14001ISO 45001VDE marks approvalUL / cULCE · LVD / EMC

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX FCE50 / FCE75 TOW MIL-C-17 / Subsea 0.6/1 kV CE

Delivery form: Heavy-duty export fumigated wooden drums or steel subsea reels
Standard lengths: 500 m, 1,000 m or custom continuous subsea/wellbore lengths
MOQ: 100 m (standard configurations) · 500 m (custom builds)
Lead time: 2–5 weeks ex-works
Incoterms: EXW, FCA, FOB, CIF, DAP

Technical documents

Downloads

PDFFCE50 / FCE75 50 Ω & 75 Ω Elastic-Core Aramid Sonar Tow Cable – technical datasheet3 sizes · construction, technical data, approvals XLSXFCE50 / FCE75 TOW spec data (Excel)All 3 sizes with dimensions and data, for your BOM or quotation

Revision: 2026-10-25
Updated: 2026-10-25

FAQ

Questions engineers ask first

Not covered here? Send your drawing — an engineer replies within 2 business hours.

What governing standard and construction define FCE50 / FCE75 TOW (FCE50 / FCE75 50 Ω & 75 Ω Elastic-Core Aramid Sonar Tow Cable)?

FCE50 / FCE75 TOW (FCE50 / FCE75 50 Ω & 75 Ω Elastic-Core Aramid Sonar Tow Cable) is manufactured in accordance with MIL-DTL-17 / Subsea 50 Ω & 75 Ω Sonar Coax Standard for 0.6/1 kV service over -30 °C to +80 °C. Its 5-layer construction comprises high-elongation elastic center core, 50 ω / 75 ω pe coaxial dielectric and aramid strength braid & pur jacket.

What is the minimum bending radius and operating temperature range for FCE50 / FCE75 TOW?

The minimum bending radius for FCE50 / FCE75 TOW is 10 × OD across its continuous operating temperature range of -30 °C to +80 °C, ensuring mechanical and dielectric reliability in subsea, marine and submersible service.

How are the concentric layers of FCE50 / FCE75 TOW arranged from inside to outside?

From inside to outside, the construction sequence is: (01) High-Elongation Elastic Center Core — Special elastic stranded tinned copper core (2× elongation, prevents Z-kinking); (02) 50 Ω / 75 Ω PE Coaxial Dielectric — Low-dielectric-constant polyethylene insulation (FCE50: 50 Ω, FCE75: 75 Ω); (03) Braided Tinned Copper Shield — High-coverage tin-plated copper braid serving as return conductor & shield; (04) Elastomer Moisture-Barrier Jacket — Rubber-based elastomer inner barrier jacket with very low moisture permeability; (05) Aramid Strength Braid & PUR Jacket — Torque-balanced Aramid braid (2,500–20,000 lbs) + abrasion-resistant PUR jacket.

What factory test certificates are supplied with FCE50 / FCE75 TOW?

Every production drum of FCE50 / FCE75 TOW undergoes routine conductor resistance/continuity, high-voltage dielectric and dimensional testing per MIL-DTL-17 / Subsea 50 Ω & 75 Ω Sonar Coax Standard, and is delivered with an EN 10204 3.1 factory test certificate.

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01Selected sizes

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03Message for our engineers

FCE50 / FCE75 50 Ω & 75 Ω Elastic-Core Aramid Sonar Tow Cable

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