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industrial data rf cable seriesIEC 61196-7 · 1/2-Inch Feeder50 Ω · 88% VoP · ≤-160 dBc PIMDC–8.8 GHz

CELLFLEX LCF12-50J 1/2-Inch Low-Loss Foam-Dielectric RF Feeder50 Ω 1/2-inch annularly corrugated copper RF feeder cable with 88 % VoP foam PE

50 Ω 1/2-inch low-loss RF feeder cable (LCF12-50J) per IEC 61196-4 with a 4.8 mm copper-clad aluminum inner conductor, gas-injected foam PE dielectric (88 % VoP, 76 pF/m), annularly corrugated copper outer tube (> 120 dB RF shielding), and PE or LSZH jacket.

Low-EMC design

EMC screen

Outdoor & humid

Ozone, UV & moisture

Configuration

Order designation: CELLFLEX LCF12-50J
Outer Ø ≈: 15.80 mm
Wall thickness: 1.00 mm
Total weight ≈: 210.0 kg/km
Min. bend R (fixed): 70 mm

All sizes (8)

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

Impedance: 50 Ω ± 1 Ω
Velocity (VoP): 88 %
Attenuation: 6.87 dB/100m
Outer conductor: Corrugated Cu
PIM3 (2×43 dBm): ≤ -160 dBc
Min bend radius: 70 mm single

Typical values for this cable type, based on IEC 61196-7 / EN 50289 (1/2-Inch Corrugated Copper Foam-PE RF Feeder) — confirmed in the datasheet and quotation for your order.

Application fit

Is CELLFLEX LCF12-50J right for your machine?

Specify CELLFLEX LCF12-50J for 4G/5G macro base-station towers, VHF/UHF land-mobile repeaters, rooftop DAS trunks, and microwave backhaul antenna feeders.

Fixed installation

Suitable

Annularly corrugated solid copper tube gives 100 % RF shielding (≥ 120 dB), ≤ -160 dBc PIM3, and radial crush strength.

Immersion & wet locations

Suitable

Closed-cell nitrogen-foamed PE dielectric bonded to the inner core prevents longitudinal moisture migration.

VFD inverter to AC motor screened feeder

Suitable

Solid corrugated copper outer conductor acts as a continuous Faraday shield, completely immune to tower lightning surges and industrial EMI.

Energy chain / drag chain

Not suitable

Semi-flexible corrugated copper tube is built for fixed tower, tunnel, and building risers—not continuous drag-chain flexing.

Use LMR-400 Flexible Coax

Typical machines4G LTE & 5G NR Base Station TowersTETRA / P25 Public Safety RadioIn-Building DAS & Stadium NetworksMaritime Coastal Radar & VTS MastsBroadcast Translator Links

Construction

Layer by layer

1/2-inch corrugated RF feeder: Ø 4.8 mm copper-clad aluminum center conductor, closed-cell foam PE dielectric, annularly corrugated solid copper tube, and UV PE jacket.

Schematic, not to scale — generated from the layer data

#	Layer	Material & reference
1	Copper-clad aluminum (CCA) inner conductor	Smooth solid copper-clad aluminum rod (Ø 4.80 mm)Combines pure copper skin-depth conductivity with lightweight tower hanging mass
2	Closed-cell physical foam PE dielectric	High-expansion nitrogen-injected closed-cell polyethylene foam (Ø 12.3 mm, 88 % VoP)Achieves ultra-low dielectric loss and moisture-blocking cell structure
3	Annularly corrugated solid copper outer conductor	Continuously RF-welded and annularly corrugated high-purity copper tube (Ø 13.8 mm)100 % RF screening (≥ 120 dB) and ≤ -160 dBc passive intermodulation
4	UV-stabilized polyethylene (J) or LSZH (B) jacket	Carbon-black UV-stabilized linear low-density PE ('J', Ø 15.8 mm) or halogen-free FRNC ('B')20+ year outdoor tower UV weatherability or EN 50575 CPR indoor fire compliance

LCF12-50J (Standard PE)

UV-black polyethylene jacket for outdoor cellular towers and rooftop feeder trays

LCF12-50B / LCF12-50JFN

Halogen-free flame-retardant LSZH jacket for indoor DAS risers and metro stations

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on IEC 61196-7 / EN 50289 (1/2-Inch Corrugated Copper Foam-PE RF Feeder). Values for your order are confirmed in the datasheet and quotation.

Electrical

Characteristic impedance: 50 Ω ± 1 Ω
Velocity of propagation: 88 % nominal (capacitance 76.0 pF/m)
Max. operating frequency: 8.8 GHz (cutoff mode limit)
Attenuation @ 0.9 / 1.8 / 2.7 GHz: 6.49 / 9.48 / 11.9 dB/100m
Passive intermodulation (PIM3): ≤ -160 dBc (2 × 43 dBm carriers)
Peak RF power / RF peak voltage: 40.0 kW peak · 4.0 kV RMS

Thermal

Operating temperature range: -55 °C to +85 °C
Installation temperature: -40 °C to +60 °C (PE) · -25 to +60 °C (LSZH)
Average power @ 900 / 1800 MHz: 1.66 kW / 1.13 kW at +40 °C ambient

Mechanical

Inner / dielectric / outer Cu Ø: 4.80 mm / 12.3 mm / 13.8 mm
Overall jacket diameter: 15.8 mm ± 0.25 mm (1/2-inch nominal)
Min. bending radius: 70 mm (single bend) · 125 mm (repeated)
Max. tensile pulling force: 1,100 N

Resistance

Screening attenuation: ≥ 120 dB (solid corrugated copper tube)
UV & weather resistance: ISO 4892-2 carbon-black PE outdoor sheath
Water penetration: IEC 60529 IP68 with O-ring feeder connectors

Reference standards

Product standard: IEC 61196-7 / EN 50289
Flame retardancy (B-version): IEC 60332-1-2, IEC 60332-3-24 & IEC 60754
RoHS & REACH: RoHS 3 (2015/863/EU) & REACH compliant

Identification

Sheath colour: Black (RAL 9005) with metric length markings
Jacket marking: TEBAOFLEX CELLFLEX LCF12-50J 1/2" 50 OHM LOW LOSS
Customs tariff (HS): 8544.20

Sizes

8 standard configurations (CELLFLEX LCF12-50J)

Engineering dimensions, impedance, propagation velocity, and electrical ratings for CELLFLEX LCF12-50J per IEC 61196-7 / EN 50289 (1/2-Inch Corrugated Copper Foam-PE RF Feeder).

Dimensions & weights
Order designation	Impedance / size	Conductor & dielectric	Wall ≈ mm	Outer Ø ≈ mm	Metal kg/km	Weight ≈ kg/km	Min. bend R fixed mm
Standard CELLFLEX LCF12-50J configurations
CELLFLEX LCF12-50J	1/2" · 50 Ω (PE)	CCA Ø 4.8 + Foam PE	1.00	15.80	118.0	210.0	70
CELLFLEX LCF12-50B	1/2" · 50 Ω (LSZH)	CCA Ø 4.8 + Foam PE	1.05	15.90	118.0	235.0	70
SCF12-50J Superflex	1/2" · 50 Ω Superflex	CCA Ø 3.6 + Foam PE	0.95	12.20	92.0	165.0	32
LCF14-50J	1/4" · 50 Ω (PE)	CCA Ø 2.6 + Foam PE	0.80	7.60	48.0	82.0	35
LCF38-50J	3/8" · 50 Ω (PE)	CCA Ø 3.1 + Foam PE	0.85	10.90	70.0	120.0	50
LCF78-50J	7/8" · 50 Ω (PE)	Cu Tube Ø 9.3 + Foam PE	1.25	27.80	285.0	490.0	120
LCF114-50J	1-1/4" · 50 Ω (PE)	Cu Tube Ø 13.1 + Foam PE	1.45	39.20	460.0	790.0	180
LCF158-50J	1-5/8" · 50 Ω (PE)	Cu Tube Ø 17.6 + Foam PE	1.60	50.20	680.0	1,140.0	250

Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
Outer diameters and weights are nominal engineering values for CELLFLEX LCF12-50J subject to standard manufacturing tolerances per IEC 61196-7 / EN 50289 (1/2-Inch Corrugated Copper Foam-PE RF Feeder).

RF & electrical data
Configuration	Max. DC R @ 20 °C Ω/km	Char. Z0 Ω	Velocity VoP / L (% or nH/m)	Dielectric test V AC rms
CELLFLEX LCF12-50J (1/2" · 50 Ω (PE))	1.48	50.0	88.0	4,000
CELLFLEX LCF12-50B (1/2" · 50 Ω (LSZH))	1.48	50.0	88.0	4,000
SCF12-50J Superflex (1/2" · 50 Ω Superflex)	2.65	50.0	82.0	3,000
LCF14-50J (1/4" · 50 Ω (PE))	5.10	50.0	84.0	2,200
LCF38-50J (3/8" · 50 Ω (PE))	3.40	50.0	86.0	2,800
LCF78-50J (7/8" · 50 Ω (PE))	0.92	50.0	89.0	6,000
LCF114-50J (1-1/4" · 50 Ω (PE))	0.58	50.0	89.0	8,000
LCF158-50J (1-5/8" · 50 Ω (PE))	0.42	50.0	90.0	10,000

Characteristic impedance, propagation velocity, DC resistance at +20 °C, and dielectric withstand voltages verified per IEC 61196-7 / EN 50289 (1/2-Inch Corrugated Copper Foam-PE RF Feeder).

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
Characteristic impedance, return loss (VSWR) & TDR sweep	100 % frequency-domain return loss and TDR impedance verification per IEC 61196-7 / EN 50289 (1/2-Inch Corrugated Copper Foam-PE RF Feeder)	Every manufactured length
Dielectric spark & high-voltage withstand test	100 % in-line spark and AC/DC dielectric withstand per IEC 61196-7 / EN 50289 (1/2-Inch Corrugated Copper Foam-PE RF Feeder)	Every spool or drum length
Sample tests
Insertion loss (attenuation), velocity & capacitance check	Attenuation (dB/100m), VoP (%), and capacitance within IEC 61196-7 / EN 50289 (1/2-Inch Corrugated Copper Foam-PE RF Feeder) limits	Per production batch
Screening attenuation, transfer impedance & environmental qualification	Qualified to IEC 61196-7 / EN 50289 (1/2-Inch Corrugated Copper Foam-PE RF Feeder) EMC shielding, thermal, and flame/fluid criteria	Type qualification

Inspection certificate

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

Product approvals

IEC 61196-7 / EN 50289 (1/2-Inch Corrugated Copper Foam-PE RF Feeder)CE (2014/35/EU) & RoHS 3 (2015/863/EU) CompliantREACH SVHC Compliance Verified

Company certificates

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

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX CELLFLEX LCF12-50J 1/2" 50 OHM FOAM RF FEEDER IEC 61196-7

Delivery form: Export wooden drums, flange reels or precision coils
Standard lengths: 100 m · 305 m · 500 m · 1000 m (or custom cut lengths)
MOQ: 100 m (stock sizes) · 300–500 m (custom build)
Lead time: 2–4 weeks ex-works
Incoterms: EXW, FOB, CIF, DAP

Technical documents

Downloads

PDFCELLFLEX LCF12-50J 1/2-Inch Low-Loss Foam-Dielectric RF Feeder – technical datasheet8 sizes · construction, technical data, approvals XLSXCELLFLEX LCF12-50J spec data (Excel)All 8 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.

What gives CELLFLEX LCF12-50J its 88 % velocity of propagation?

High-expansion physical nitrogen-foamed closed-cell polyethylene reduces the effective permittivity to ~1.29, achieving 88 % velocity of propagation and 6.87 dB/100m attenuation at 1 GHz without requiring air pressurization.

Why is PIM3 (≤ -160 dBc) critical in 4G/5G cellular base stations?

Multi-carrier LTE and 5G NR base stations transmit high composite RF power across shared feeders; the seam-welded annularly corrugated solid copper outer conductor eliminates braided wire contact non-linearities that cause passive intermodulation interference in uplink receivers.

When should I select LCF12-50J versus Superflexible SCF12-50J?

Use LCF12-50J (88 % VoP, 70 mm single bend radius) for main vertical tower runs and rooftop trunks where lowest attenuation is paramount; use SCF12-50J (32 mm bend radius) for short RRU-to-antenna jumpers.

What is the difference between the -50J and -50B sheath versions?

The -50J version features a carbon-black UV-stabilized polyethylene jacket for outdoor towers, whereas -50B uses a low-smoke zero-halogen flame-retardant (LSZH / FRNC) jacket for indoor tunnels and building risers.

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CELLFLEX LCF12-50J 1/2-Inch Low-Loss Foam-Dielectric RF Feeder

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Datasheet Request a quote

CELLFLEX LCF12-50J 1/2-Inch Low-Loss Foam-Dielectric RF Feeder50 Ω 1/2-inch annularly corrugated copper RF feeder cable with 88 % VoP foam PE

Fixed installation

Immersion & wet locations

VFD inverter to AC motor screened feeder

Energy chain / drag chain

LCF12-50J (Standard PE)

LCF12-50B / LCF12-50JFN

Electrical

Thermal

Mechanical

Resistance

Reference standards

Identification

Inspection certificate

Product approvals

Company certificates

01Selected sizes

02Reel & motion

03Message for our engineers

HELIFLEX HCA78-50JM / HCA158-50JM

RADIAFLEX RCF12-50 / RCF78

LMR-400

LS1S50MU / LS1S50MUS / LS1SMU