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Product

industrial data rf cable seriesMIL-DTL-17/129 · /130 · /13350 Ω · .250" / .141" / .086"DC–67 GHz · >120 dB Isolation

RG-401-U / RG-402-U / RG-405-U Semi-Rigid Coaxial CableMIL-DTL-17 · Semi-rigid solid Cu tubing PTFE microwave coax · 50 Ω · DC–65 GHz · >120 dB

50 Ω semi-rigid solid copper-tubing microwave coaxial cable (RG-401/U .250", RG-402/U .141", RG-405/U .086" — M17/129, M17/130, M17/133) per MIL-DTL-17 with a silver-plated core, PTFE dielectric (69.5 % VoP), and seamless copper outer tube (> 120 dB).

Low-EMC design
EMC screen
Approved
Flame-retardant
Order designation
M17/130-RG402 (.141" Cu)
Outer Ø ≈
3.58 mm
Wall thickness
0.30 mm
Total weight ≈
53.6 kg/km
Min. bend R (fixed)
6 mm
All sizes (8)
Request a quoteDatasheetWhatsApp
Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum
Impedance
50 Ω ± 1.0 Ω
Precision microwave transmission
Max frequency
20 / 34 / 67 GHz
RG-401 / RG-402 / RG-405 cutoff
Velocity (VoP)
69.5 %
95.1 pF/m virgin solid PTFE
RF shielding
> 120 dB
Seamless drawn solid Cu tube
Tube diameters
.250/.141/.086"
6.35 mm / 3.58 mm / 2.20 mm
Temperature
-55…+125 °C
Up to +200 °C low-expanding PTFE

Typical values for this cable type, based on MIL-DTL-17/129, /130 & /133 (RG-401 .250", RG-402 .141", RG-405 .086" Semi-Rigid) — confirmed in the datasheet and quotation for your order.

Application fit

Is RG-401-U / RG-402-U / RG-405-U right for your machine?

Specify RG-401/U (.250"), RG-402/U (.141"), and RG-405/U (.086") for 3D-formed microwave transceiver modules, phased-array T/R bricks, radar exciters, satellite payloads, and cryogenic quantum interconnects.

Switchgear & control cabinet wiring

Suitable

Seamless copper tubing holds exact CNC-bent 3D shapes (3.2 mm bend radius on RG-405; 6.4 mm on RG-402) in RF chassis.

VFD inverter to AC motor screened feeder

Suitable

Solid seamless copper outer wall provides > 120 dB RF isolation with zero braid leakage between adjacent high-gain amplifier stages.

Fixed installation

Suitable

Direct-solderable bare, tin-plated, or silver-plated copper outer tube mates cleanly with SMA, 2.92 mm (K), 2.4 mm, and 1.85 mm connectors.

Energy chain / drag chain

Not suitable

Semi-rigid solid copper tubing is formed once prior to assembly; for flexible test leads, specify SUCOFLEX 100.

Use SUCOFLEX 100 Flexible
Typical machinesAESA Radar Transmit/Receive (T/R) ModulesSatellite & Deep-Space RF Payloads5G mmWave & Microwave Radio UnitsVector Network Analyzer & ATE ChassisCryogenic & Quantum Computing Dilution Fridges

Construction

Layer by layer

MIL-DTL-17 semi-rigid coax: solid silver-plated copper (RG-401) or SPCW (RG-402/405) center conductor, extruded virgin solid PTFE dielectric, and seamless drawn copper outer tube.

123
Schematic, not to scale — generated from the layer data
#LayerMaterial & reference
1Solid silver-plated copper / SPCW center conductorSolid SPC Ø 1.63 mm (RG-401, 14 AWG) or silver-plated copper-clad steel Ø 0.92 mm (RG-402, 19 AWG) / Ø 0.51 mm (RG-405, 24 AWG)High concentric stiffness and low microwave skin-effect resistance through 67 GHz
2Solid virgin PTFE microwave dielectricExtruded homogeneous polytetrafluoroethylene (εr = 2.07, 69.5 % VoP, 95.1 pF/m)Maintains tight ± 0.5 Ω to ± 1.0 Ω impedance tolerance during tube drawing and bending
3Seamless drawn solid copper outer conductor tubeSeamless oxygen-free copper tubing (Ø 6.35 mm [.250"], Ø 3.58 mm [.141"], or Ø 2.20 mm [.086"], bare, tin-plated, or silver-plated)100 % solid metallic barrier (> 120 dB isolation) and direct connector solderability

RG-402/U (M17/130-RG402 · .141" / 3.58 mm)

Industry-standard .141" semi-rigid coax for SMA and 2.92 mm assemblies up to 34 GHz

RG-405/U (.086" / 2.20 mm) & RG-401/U (.250" / 6.35 mm)

Miniature .086" coax up to 67 GHz (RG-405) and high-power .250" coax up to 20 GHz (RG-401)

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on MIL-DTL-17/129, /130 & /133 (RG-401 .250", RG-402 .141", RG-405 .086" Semi-Rigid). Values for your order are confirmed in the datasheet and quotation.

Electrical

Characteristic impedance
50 Ω ± 0.5 Ω (RG-401) · ± 1.0 Ω (RG-402) · ± 1.5 Ω (RG-405)
Max. operating frequency
20 GHz (RG-401) · 34 GHz (RG-402) · 67 GHz (RG-405)
Velocity of propagation
69.5 % nominal (capacitance 95.1 pF/m, 4.80 ns/m)
Attenuation @ 10 GHz
82 dB/100m (RG-401) · 138 dB/100m (RG-402) · 220 dB (RG-405)
Attenuation @ 20 GHz
128 dB/100m (RG-401) · 207 dB/100m (RG-402) · 328 dB (RG-405)
Dielectric withstand voltage
7,500 V (RG-401) · 5,000 V (RG-402) · 5,000 V RMS (RG-405)

Thermal

Operating temperature range
-55 °C to +125 °C (MIL-DTL-17) · up to +200 °C (LD-PTFE)
Avg CW power @ 10 GHz
205 W (RG-401) · 70 W (RG-402) · 22 W (RG-405)
Solder termination temp.
Withstands +260 °C direct connector soldering

Mechanical

Center / dielectric / outer Ø
1.63/6.35 (401) · 0.92/3.58 (402) · 0.51/2.20 mm (405)
Min. inside bend radius
12.7 mm (RG-401) · 6.35 mm (RG-402) · 3.18 mm (RG-405)
Outer tube plating options
Bare Copper, Tin-Plated Copper, or Silver-Plated Copper

Resistance

RF shielding effectiveness
> 120 dB (seamless drawn solid copper wall)
Vacuum & outgassing
Zero organic jacket outgassing (space & cryo ready)
Chemical & solvent immunity
PTFE + copper immune to all solvents and fuels

Reference standards

Military QPL slash sheets
MIL-DTL-17/129 (RG-401), /130 (RG-402) & /133 (RG-405)
International standard
IEC 61196-9 Semi-Rigid Coaxial RF Cables
RoHS & REACH
RoHS 3 & REACH SVHC compliant

Identification

Surface finish
Bright Copper (Bare) or Silver/Tin metallic finish
Lot / reel identification
TEBAOFLEX M17/130-RG402 .141" 50 OHM SEMI-RIGID COAX
Customs tariff (HS)
8544.20

Sizes

8 standard configurations (RG-401-U / RG-402-U / RG-405-U)

Engineering dimensions, impedance, propagation velocity, and electrical ratings for RG-401-U / RG-402-U / RG-405-U per MIL-DTL-17/129, /130 & /133 (RG-401 .250", RG-402 .141", RG-405 .086" Semi-Rigid).

Dimensions & weights
Order designationImpedance / sizeConductor & dielectricWall ≈
mm		Outer Ø ≈
mm		Metal
kg/km		Weight ≈
kg/km		Min. bend R
fixed mm		Enquiry
Standard RG-401-U / RG-402-U / RG-405-U configurations
M17/133-RG405 (.086" Cu)50 Ω · .086" (2.20 mm)SPCW Ø 0.51 + PTFE + Cu Tube0.262.2014.522.33
M17/133-00001 (.086" Sn)50 Ω · .086" Tin-PlatedSPCW Ø 0.51 + PTFE + Sn-Cu0.262.2014.522.53
M17/130-RG402 (.141" Cu)50 Ω · .141" (3.58 mm)SPCW Ø 0.92 + PTFE + Cu Tube0.303.5834.053.66
M17/130-00001 (.141" Sn)50 Ω · .141" Tin-PlatedSPCW Ø 0.92 + PTFE + Sn-Cu0.303.5834.054.06
M17/129-RG401 (.250" Cu)50 Ω · .250" (6.35 mm)SPC Ø 1.63 + PTFE + Cu Tube0.526.3598.0156.013
M17/129-00001 (.250" Sn)50 Ω · .250" Tin-PlatedSPC Ø 1.63 + PTFE + Sn-Cu0.526.3598.0157.013
M17/151-00001 (.047" Cu)50 Ω · .047" (1.19 mm)SPCW Ø 0.29 + PTFE + Cu Tube0.131.194.26.82
HF-141 Hand-Formable50 Ω · .141" Tin-SoakedSPCW Ø 0.92 + PTFE + Sn-Braid0.303.5832.048.08
  • 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 RG-401-U / RG-402-U / RG-405-U subject to standard manufacturing tolerances per MIL-DTL-17/129, /130 & /133 (RG-401 .250", RG-402 .141", RG-405 .086" Semi-Rigid).

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
Characteristic impedance, return loss (VSWR) & TDR sweep100 % frequency-domain return loss and TDR impedance verification per MIL-DTL-17/129, /130 & /133 (RG-401 .250", RG-402 .141", RG-405 .086" Semi-Rigid)Every manufactured length
Dielectric spark & high-voltage withstand test100 % in-line spark and AC/DC dielectric withstand per MIL-DTL-17/129, /130 & /133 (RG-401 .250", RG-402 .141", RG-405 .086" Semi-Rigid)Every spool or drum length
Sample tests
Insertion loss (attenuation), velocity & capacitance checkAttenuation (dB/100m), VoP (%), and capacitance within MIL-DTL-17/129, /130 & /133 (RG-401 .250", RG-402 .141", RG-405 .086" Semi-Rigid) limitsPer production batch
Screening attenuation, transfer impedance & environmental qualificationQualified to MIL-DTL-17/129, /130 & /133 (RG-401 .250", RG-402 .141", RG-405 .086" Semi-Rigid) EMC shielding, thermal, and flame/fluid criteriaType qualification

Inspection certificate

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

Product approvals

MIL-DTL-17/129, /130 & /133 (RG-401 .250", RG-402 .141", RG-405 .086" Semi-Rigid)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 M17/130-RG402 .141" 50 OHM SEMI-RIGID MICROWAVE COAX
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

PDFRG-401-U / RG-402-U / RG-405-U Semi-Rigid Coaxial Cable – technical datasheet8 sizes · construction, technical data, approvalsXLSXRG-401-U / RG-402-U / RG-405-U 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.

How do RG-401/U (.250"), RG-402/U (.141"), and RG-405/U (.086") differ in frequency and power capability?
RG-401/U (.250" / 6.35 mm) handles the highest CW microwave power (205 W at 10 GHz) with lowest insertion loss up to 20 GHz; RG-402/U (.141" / 3.58 mm) matches the internal geometry of standard SMA and 3.5 mm connectors for low-VSWR transitions up to 34 GHz; and RG-405/U (.086" / 2.20 mm) supports tight 3.18 mm bends and millimeter-wave operation up to 67 GHz with 2.4 mm and 1.85 mm connectors.
Why does RG-402/U (.141") interface directly with SMA connectors without an adapter pin?
The SMA connector interface was originally engineered around the .141-inch RG-402/U cross-section: the cable's Ø 0.92 mm (0.036 in) SPCW center conductor and Ø 2.98 mm PTFE dielectric serve directly as the male SMA center pin and insulator when soldered into a direct-solder SMA body.
Why is the maximum operating temperature of standard solid-PTFE semi-rigid cable limited to +125 °C?
Although PTFE melts above +327 °C, its thermal expansion coefficient is roughly 10× higher than copper tubing; above +125 °C (or +150 °C on RG-405), solid PTFE expands radially and extrudes out the open ends unless low-density microporous PTFE is specified.
When should I choose tin-plated (-00001) versus bare copper semi-rigid tubing?
Tin-plated copper outer tubing prevents surface oxidation in humid environments and wets immediately during automated induction or hand soldering without aggressive flux.

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