1 / 5

Product

MIL-DTL-17 PE/PVC RF Coaxial CablesMIL-DTL-17/78 RG-21750 Ω · 5200 V rmsØ 13.84 mm High-Power Coax

RG-217/U RF Coaxial CableMIL-DTL-17/78 · 50 Ω ± 2 Ω · Ø 13.84 mm · 10 AWG (Ø 2.70) solid Cu · Solid PE · Dual Cu

RG-217/U (MIL-DTL-17/78-RG217) is a heavy-wall 50 Ω high-power RF coaxial cable with a 13.84 mm (0.545 in) outer diameter and 5,200 V rms operating voltage. Engineered with a Ø 2.70 mm (10 AWG) solid bare copper center conductor, Ø 9.40 mm solid PE

EMC screen
Low-EMC design
Outdoor & humid
Flame-retardant
Order designation
RG-217/U (M17/78-RG217) Type IIA PVC
Outer Ø ≈
13.84 mm
Metal weight
168.0 kg/km
Total weight ≈
305.0 kg/km
Min. bend R (fixed)
83 mm
All sizes (4)
Request a quoteDatasheetWhatsApp
Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum
Impedance Z₀
50 Ω ± 2 Ω
MIL-DTL-17/78 high-power coax
Outer diameter
13.84 mm (0.545
Ø 9.40 mm solid PE dielectric
Center conductor
10 AWG (Ø 2.70
5.73 mm² solid bare copper
Shielding
Dual bare Cu
> 85 dB high-current RF return
Max. voltage
5200 V rms
15.0 kV rms dielectric test
CW power @ 50 MHz
3400 W continuo
2200 W @ 100 MHz · 950 W @ 400 MHz

Typical values for this cable type, based on MIL-DTL-17/78-RG217 (M17/78-RG217) — confirmed in the datasheet and quotation for your order.

Application fit

Is RG-217/U right for your machine?

Built for high-power HF/VHF/UHF broadcast and defense transmitters, semiconductor RF plasma etching/CVD power delivery (13.56 MHz / 27.12 MHz / 40.68 MHz), MRI gradient/RF amplifiers, and pulsed

Fixed installation

Suitable

Heavy Ø 9.40 mm solid PE dielectric and dual copper braids handle multi-kilowatt continuous RF feeders.

Switchgear & control cabinet wiring

Suitable

Standard interconnect between 13.56 MHz industrial RF generators, auto-match networks, and plasma chambers.

Trailing & towing

Not suitable

Solid 2.70 mm (10 AWG) copper center conductor is designed for fixed installation, not portable reeling.

RG-214

Energy chain / drag chain

Not suitable

Rigid solid-conductor 13.84 mm coaxial feeder cannot be used in dynamic cable chains.

S 368 C
Typical machines13.56 MHz Semiconductor Plasma & CVDHigh-Power HF / VHF / UHF TransmittersNaval & Coastal Defense Radar FeedersMRI RF Power Amplifier InterconnectsLinear Accelerator & RF Heating Systems

Construction

Layer by layer

Ø 2.70 mm (10 AWG) solid bare copper center conductor, Ø 9.40 mm solid polyethylene dielectric, two concentric bare copper wire braids

12345
Schematic, not to scale — generated from the layer data
#LayerMaterial & reference
1Solid bare copper center conductor (10Ø 2.70 mm (0.106 in, 5.73 mm²) solid annealed high-conductivity oxygen-free copper perMIL-DTL-17/78
2Heavy-wall solid PE dielectricVirgin low-loss solid polyethylene Type A, Ø 9.40 mm ± 0.20 mm (0.370 in)MIL-DTL-17/78
3Inner bare copper wire braid34 AWG annealed bare copper wire braid (≥ 95 % optical coverage)MIL-DTL-17/78
4Outer bare copper wire braidSecond counter-woven 34 AWG bare copper braid providing low RF transfer impedance andMIL-DTL-17/78
5Non-contaminating PVC Type IIA jacketUV-resistant black polyvinyl chloride Type IIA (or armoured RG-218 / shipboard LSZH), ØMIL-DTL-17/78

RG-217/U (M17/78-RG217)

Standard MIL-DTL-17/78 double-braided 50 Ω high-power coaxial cable with non-contaminating black PVC Type

RG-217-LSZH (Halogen-Free)

Low-smoke zero-halogen outer jacket for semiconductor cleanroom sub-fabs and naval shipboard compartments.

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on MIL-DTL-17/78-RG217 (M17/78-RG217). Values for your order are confirmed in the datasheet and quotation.

Electrical

Characteristic impedance Z₀
50 Ω ± 2 Ω
Nominal capacitance
101.0 pF/m (30.8 pF/ft)
Velocity of propagation (VoP)
66.0 %
Center / shield DC resistance
≤ 3.1 Ω/km / ≤ 2.4 Ω/km at 20 °C
Max. operating voltage
5,200 V rms (7,000 V rms peak)
Dielectric withstand test
15.0 kV rms at 60 Hz

Thermal

Operating temperature range
-40 °C to +80 °C
Installation temperature range
-20 °C to +70 °C
Dielectric softening temperature
+85 °C (solid PE)
Flame retardance
IEC 60332-1-2 / UL VW-1
Cold-bend rating
-40 °C per MIL-DTL-17
Continuous CW power @ 13.56 MHz
6,800 W (@ +40 °C ambient)

Mechanical

Center conductor diameter
2.70 mm solid Cu (10 AWG, 0.106 in)
Dielectric diameter
9.40 mm ± 0.20 mm (0.370 in)
Outer jacket diameter
13.84 mm ± 0.25 mm (0.545 in)
Min. bend radius (fixed / install)
85 mm (6×D) / 140 mm (10×D)
Nominal cable weight
305.0 kg/km (205 lb/1000 ft)
Connector compatibility
Type N, 7/16 DIN, HN, LC, SC (RG-217 size)

Resistance

Plasticizer non-contamination
Type IIA non-migrating PVC
High-voltage corona resistance
Void-free extruded Ø 9.40 mm PE core
RF leakage suppression
Dual counter-woven copper braids
UV & outdoor weather
Black UV-stabilised outer sheath
Cleanroom LSZH option
Halogen-free low-outgassing sheath
RoHS / REACH status
RoHS 3 compliant

Reference standards

Military detail specification
MIL-DTL-17/78-RG217 (M17/78)
Sweep-tested military code
MIL-DTL-17/165-00001
Conductor standard
ASTM B3 solid annealed bare copper
Flame test standard
IEC 60332-1-2
Coaxial RF standard
IEC 61196-1
Quality certification
EN 10204 3.1 + 15 kV HV & VSWR report

Identification

Dielectric colour
Translucent natural solid PE
Outer jacket colour
Black
Surface legend
TEBAOFLEX MIL-DTL-17/78-RG217 50 OHM
Standard drum lengths
100 m, 305 m, 500 m
Impedance group
50 Ω high-power 0.545" coax
Batch traceability
Lot number & metre marking

Sizes

4 standard configurations (RG-217/U)

Dimensional, physical and high-frequency electrical parameters for RG-217/U per MIL-DTL-17/78-RG217 (M17/78-RG217).

Dimensions & construction
Order designationConstruction / VariantConductorOuter Ø ≈
mm		Metal
kg/km		Weight ≈
kg/km		Min. bend R
fixed mm		Enquiry
Standard RG-217/U variants
RG-217/U (M17/78-RG217) Type IIA PVC50 Ω Dual Bare Cu Braid (PVC)10 AWG (Ø 2.70 Cu)13.84168.0305.083
M17/165-00001 Swept RG-217 Grade50 Ω Swept Dual Cu Braid (PVC)10 AWG (Ø 2.70 Cu)13.84168.0305.083
RG-217-LSZH Cleanroom / Shipboard50 Ω Dual Bare Cu Braid (LSZH)10 AWG (Ø 2.70 Cu)13.84168.0315.083
RG-214/U Flexible 13 AWG Sister Coax50 Ω Dual SPC Braid (PVC)13 AWG (7×0.75 SPC)10.80112.0195.065
  • Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
  • Dimensions and weights are nominal production values subject to manufacturing tolerances per MIL-DTL-17/78-RG217 (M17/78-RG217).

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.

  1. ConductorClass 5 stranding
  2. Spark test100 % in-line
  3. Lay-upCores, earth, fillers
  4. SheathingInner, braid / screen, outer
  5. Electrical testsAC voltage, resistance
  6. DimensionsOD, wall thickness
  7. Inspection documents & dispatchDrum & dispatch
Testing & inspectionTest value / referenceFrequency
Routine tests
15.0 kV AC dielectric withstand & corona15.0 kV rms at 60 Hz without breakdown or partial dischargeEvery drum
Sweep impedance & structural return loss50 Ω ± 2 Ω; VSWR verified across 10–1000 MHzEvery drum
Sample tests
Attenuation & conductor DC resistance≤ 3.1 Ω/km center conductor; meets MIL-DTL-17/78 lossPer batch
Type IIA jacket non-contamination & cold bendPasses -40 °C cold bend and thermal stabilityQualification

Inspection certificate

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

Product approvals

MIL-DTL-17/78-RG217MIL-DTL-17/165RoHS 3 / CE

Company certificates

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

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX MIL-DTL-17/78-RG217 50 OHM 5200V
Delivery form
Spools, reels or export wooden drums
Standard reel lengths
100 m · 305 m (1000 ft) · 500 m · 1000 m
MOQ
100 m (stock) · 305–500 m (production)
Lead time
1–3 weeks ex-works
Incoterms
EXW, FCA, FOB, CIF, DAP

Technical documents

Downloads

PDFRG-217/U RF Coaxial Cable – technical datasheet4 sizes · construction, technical data, approvalsXLSXRG-217/U spec data (Excel)All 4 sizes with dimensions and data, for your BOM or quotation
Revision
2026-10-20
Updated
2026-10-20

FAQ

Questions engineers ask first

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

Why is RG-217/U the standard cable for 13.56 MHz semiconductor RF plasma generators?
Semiconductor plasma etch and PECVD tools deliver 3 kW to 10 kW of 13.56 MHz RF power into reactive impedance matchers where standing-wave peak voltages exceed 3,000 V; RG-217/U provides a 5,200 V rms rating (15 kV test), a massive 10 AWG solid copper center conductor, and dual copper braids that contain high RF return currents.
How much more RF power does RG-217/U handle compared to RG-213 or RG-214?
With its 9.40 mm dielectric and 2.70 mm solid copper conductor, RG-217/U carries roughly 55 % to 65 % more continuous CW power and 40 % higher working voltage (5,200 V rms vs 3,700 V rms) than RG-213 or RG-214. Each production reel undergoes sweep-frequency impedance and return-loss verification, dielectric spark testing, and dimensional inspection before dispatch with an EN 10204 3.1 test certificate.
Which high-power RF connectors are used with RG-217/U?
RG-217/U is terminated with heavy-duty 7/16 DIN, Type HN (high-voltage), Type N (RG-217 clamp/crimp entry), SC, or LC connectors depending on operating voltage and frequency. Each production reel undergoes sweep-frequency impedance and return-loss verification, dielectric spark testing, and dimensional inspection before dispatch with an EN 10204 3.1 test certificate.
When should flexible RG-214 be chosen instead of RG-217/U?
Because RG-217/U has a solid 2.70 mm copper center conductor and an 85 mm minimum static bend radius, choose stranded-conductor RG-214 whenever the cable must flex repeatedly or bend tighter than 85 mm. Each production reel undergoes sweep-frequency impedance and return-loss verification, dielectric spark testing, and dimensional inspection before dispatch with an EN 10204 3.1 test certificate.

Request a quote

Get an engineering quote for RG-217/U

Your selection and application details are copied into the enquiry form below.

01Selected sizes

Use + Add next to a size or configuration.

02Reel & motion

Add your operating conditions here to include them in your enquiry.

03Message for our engineers

RG-217/U RF Coaxial Cable

Selected sizes:


Reel & motion:
- Reel type: 
- Drum core diameter (mm): 
- Cable length on drum (m): 
- Travel speed (m/min): 
- Max. acceleration: 
- Cycles per hour: 
- Length and quantity: 
- Ambient temperature: 
- Exposure (outdoor, water, oil, abrasion): 
- Destination country: 
- Equipment and operating conditions:
Send via WhatsApp

MIL-DTL-17

RG-214

50 Ω Ø 10.80 mm Double-Shielded Silver-Plated Coax

View productMIL-DTL-17

RG-213

50 Ω Ø 10.30 mm Low-Loss Base Station RF Coax

View productMIL-DTL-17

RG-223/U

50 Ω Ø 5.38 mm Double-Shielded Silver-Plated Coax

View productMIL-DTL-17

RG-400

50 Ω Double-Shielded Avionics FEP/PTFE Coax

View product
DatasheetRequest a quote