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Aerospace & Avionics Data Bus & RF CablesAEEC ARINC 708 / 45378 Ω ± 4 Ω · 1 Mbps WXRLow-Loss ≤ 56 pF/m Twinax

ARINC 708 / 453 Weather-Radar Avionics Data Bus CableAEEC ARINC 708 / 453 · 78 Ω ± 4 Ω · 1 Mbps · 22/24/26 AWG · Foam FEP (≤ 56 pF/m) · Foil

ARINC 708 / 453 Weather Radar Avionics Data Bus Cable is a tight-tolerance 78 Ω ± 4 Ω high-speed twinax cable engineered to AEEC ARINC Characteristic 708 and ARINC 453 for 1 Mbps Manchester-coded airborne weather radar (WXR), predictive windshear, and

EMC screen

Low-EMC design

Flame-retardant

Approved

Variant

Order designation: ARINC 708/453 1×2×24 AWG Foam FEP Twinax
Outer Ø ≈: 2.95 mm
Metal weight: 10.5 kg/km
Total weight ≈: 17.2 kg/km
Min. bend R (fixed): 15 mm

All sizes (4)

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

Impedance Z₀: 78 Ω ± 4 Ω
Bus protocol: 1 Mbps Manchest
Mutual cap.: ≤ 54–59 pF/m
Attenuation: ≤ 3.9 dB/100m
HIRF shielding: Foil + 95 % SPC
Temp. rating: -55 to +200 °C

Typical values for this cable type, based on AEEC ARINC 708 / ARINC 453 / MIL-DTL-27500 — confirmed in the datasheet and quotation for your order.

Application fit

Is ARINC 708 / 453 right for your machine?

Engineered specifically for airborne weather radar receiver-transmitter (R/T) to cockpit EFIS/ND/MFD display buses, terrain awareness (TAWS/EGPWS) high-speed picture buses, and ARINC 453 Very High

Fixed installation

Suitable

Routes from the unpressurized forward nose radome bulkhead through the avionics bay to the flight deck.

Switchgear & control cabinet wiring

Suitable

Fits ARINC 600 Size 8 and MIL-DTL-38999 Size 8 twinax contacts on WXR R/T trays.

Furnace, kiln & high-temp zone

Suitable

Withstands -55 °C high-altitude cold soak in the nose cone up to +200 °C thermal environments.

Energy chain / drag chain

Not suitable

Designed for fixed airframe harnesses; for antenna gimbal RF use RG-400 or BCB009.

BCB009

Typical machinesAirborne Weather Radar (WXR-2100 / RDR-4000)Predictive Windshear & Turbulence DisplaysCockpit Multi-Function Displays (MFD / ND)TAWS / EGPWS Terrain Picture BusesMilitary Tanker, Awacs & Maritime Patrol

Construction

Layer by layer

2 × 19-strand (22, 24, or 26 AWG) silver-plated copper or silver-plated high-strength copper-alloy conductors (blue & white), low-loss

Schematic, not to scale — generated from the layer data

#	Layer	Material & reference
1	19-strand SPC / Ag-Cu alloy twinax pair	2 × 22, 24, or 26 AWG (19-strand) silver-plated copper or high-strength Cu-Ag/Cu-Cr alloyARINC 708 / AS22759
2	Low-capacitance cellular foam FEP / PTFE	Gas-injected fluoropolymer pair insulation (Blue & White), 78 % VoP, ≤ 54–59 pF/m mutualARINC 708 / 453
3	100 % aluminised fluoropolymer/polyimid	Full-coverage metallic vapour-deposited tape blocking nose-radome X-band radar andARINC 708
4	High-coverage silver-plated copper braid	38 AWG silver-plated copper braid (≥ 95 % coverage; dual shield option for unpressurizedMIL-DTL-27500
5	Laser-markable FEP / ETFE / PTFE outer	White UV-laser-printable fluoropolymer outer sheath (-55 °C to +200 °C, FAR 25.853FAR 25.853

ARINC 708 24 AWG Low-Loss Twinax (Ø 2.95 mm)

Standard 78 Ω ± 4 Ω weather radar display bus cable with foamed FEP dielectric and foil + 95 % SPC braid.

ARINC 708 22 AWG Extended-Reach Twinax (Ø 3.40 mm)

Lower DC resistance and RF attenuation for wide-body aircraft nose-to-tail / dual-cockpit WXR runs.

ARINC 708 Dual-Braid HIRF Grade (Ø 3.35 mm)

Foil + double silver-plated copper braid (> 90 dB isolation) for routing through composite fuselage and

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on AEEC ARINC 708 / ARINC 453 / MIL-DTL-27500. Values for your order are confirmed in the datasheet and quotation.

Electrical

Characteristic impedance Z₀: 78 Ω ± 4 Ω (swept 1 MHz to 20 MHz)
Mutual pair capacitance: 54.0 to 59.0 pF/m (16.5 to 18.0 pF/ft)
Velocity of propagation (VoP): 78.0 % (4.27 ns/m delay)
Attenuation at 1 MHz / 10 MHz: ≤ 3.9 dB/100m / ≤ 11.8 dB/100m
Pair capacitive unbalance: ≤ 1.5 pF/m to shield
Dielectric test voltage: 1,500 V rms at 60 Hz

Thermal

Operating temperature range: -55 °C to +200 °C continuous
Unpressurized nose-bay cold soak: -55 °C at 55,000 ft altitude
Flammability & smoke rating: FAA FAR 25.853, Airbus ABD0031, BSS 7230
Thermal shock stability: -55 °C to +200 °C without impedance drift
Soldering heat resistance: Fluoropolymer resists termination iron heat
UV laser markability: High-contrast 355 nm UV laser printable

Mechanical

Conductor gauges available: 22 AWG, 24 AWG, and 26 AWG (19-strand)
Outer jacket diameter (24 / 22 AWG): 2.95 mm (0.116 in) / 3.40 mm (0.134 in)
Min. bend radius (fixed / install): 15 mm (5×D) / 30 mm (10×D)
Nominal weight (24 / 22 AWG): 17.2 kg/km / 24.5 kg/km
Connector contact size: MIL-DTL-38999 & ARINC 600 Size 8 twinax
Pair lay symmetry: Precision concentric twinax stranding

Resistance

Aviation fluids & Skydrol: Inert to Skydrol, Jet-A, hydraulic oil &
X-band radar HIRF immunity: Foil + 95 % SPC braid blocks radome RF
Composite airframe lightning guard: Optional dual SPC braid for CFRP airframes
Moisture & altitude sealing: Closed-cell fluoropolymer resists
Arc-tracking resistance: Passes SAE AS4373 wet/dry arc track
RoHS / REACH status: Aerospace RoHS compliant

Reference standards

Weather radar bus standard: AEEC ARINC Characteristic 708 & 708A
High-speed data bus standard: AEEC ARINC Specification 453
Military twinax reference: MIL-DTL-17/176 & MIL-DTL-27500
Airframe flammability standard: FAA FAR 25.853 / EASA CS-25
Aerospace wire test standard: SAE AS4373 / EN 3475
Quality certification: EN 10204 3.1 + 1–20 MHz TDR/VNA report

Identification

Insulated core colours: Blue & White
Outer jacket colour: White (UV-laser markable) or Blue stripe
Surface legend: TEBAOFLEX ARINC 708/453 78 OHM WXR BUS 200C
Standard spool lengths: 152 m (500 ft), 305 m (1000 ft), 500 m
Bus designation: ARINC 708 / 453 1 Mbps Weather Radar Twinax
Batch traceability: Aerospace lot number & conformity cert

Sizes

4 standard configurations (ARINC 708 / 453)

Dimensional, physical and high-frequency electrical parameters for ARINC 708 / 453 per AEEC ARINC 708 / ARINC 453 / MIL-DTL-27500.

Dimensions & construction
Order designation	Construction / Variant	Conductor	Outer Ø ≈ mm	Metal kg/km	Weight ≈ kg/km	Min. bend R fixed mm
Standard ARINC 708 / 453 variants
ARINC 708/453 1×2×24 AWG Foam FEP Twinax	78 Ω ± 4 Ω + Foil + 95% SPC Braid	24 AWG (19×36 Alloy)	2.95	10.5	17.2	15
ARINC 708/453 1×2×22 AWG Extended-Run Twinax	78 Ω ± 4 Ω + Foil + 95% SPC Braid	22 AWG (19×34 SPC)	3.40	15.2	24.5	17
ARINC 708/453 1×2×24 AWG Dual-Braid CFRP Grade	78 Ω ± 4 Ω + Foil + Dual SPC Braid	24 AWG (19×36 Alloy)	3.35	16.8	24.8	17
ARINC 708/453 1×2×26 AWG Ultra-Lightweight	78 Ω ± 4 Ω + Foil + 95% SPC Braid	26 AWG (19×38 Alloy)	2.55	7.4	12.8	13

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 AEEC ARINC 708 / ARINC 453 / MIL-DTL-27500.

Impedance, capacitance & electrical data
Configuration	Max. conductor DC R Ω / km @ 20 °C	Characteristic Z₀ Ω	Capacitance pF / m	Velocity VoP %	Test voltage V rms
78 Ω ± 4 Ω + Foil + 95% SPC Braid	1.5	78	48.0	78	1,500
78 Ω ± 4 Ω + Foil + 95% SPC Braid	1.6	78	48.0	78	1,500
78 Ω ± 4 Ω + Foil + Dual SPC Braid	1.5	78	48.0	78	1,500
78 Ω ± 4 Ω + Foil + 95% SPC Braid	1.4	78	48.0	78	1,500

Transmission parameters measured at 1–100 MHz (+20 °C) in accordance with AEEC ARINC 708 / ARINC 453 / MIL-DTL-27500.

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
Sweep impedance & return loss (1–20 MHz)	78 Ω ± 4 Ω; low structural reflections across Manchester spectrum	Every spool
Mutual capacitance, unbalance & 1.5 kV HV	≤ 59 pF/m mutual cap; ≤ 1.5 pF/m unbalance; 1.5 kV AC pass	Every spool
Sample tests
1 Mbps Manchester eye-diagram & HIRF transfer	Clean zero-crossing eye pattern; > 85 dB shield isolation	Per batch
FAR 25.853 burn test & -55/+200 °C thermal shock	Meets FAA/EASA airframe flammability and thermal aging	Qualification

Inspection certificate

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

Product approvals

AEEC ARINC 708 & ARINC 453MIL-DTL-27500 / AS4373FAA FAR 25.853 / ABD0031

Company certificates

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

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX ARINC 708/453 78 OHM WEATHER

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

PDFARINC 708 / 453 Weather-Radar Avionics Data Bus Cable – technical datasheet4 sizes · construction, technical data, approvals XLSXARINC 708 / 453 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.

How does ARINC 708 / 453 weather radar cable differ from standard 100 kbps ARINC 429 cable?

While ARINC 429 operates at 12.5 or 100 kbps, ARINC 708 (built on the ARINC 453 electrical layer) transmits 1 Mbps (1 MHz) Manchester II bi-phase weather radar display bursts requiring harmonic bandwidth past 10 MHz; our ARINC 708 cable tightens impedance tolerance to 78 Ω ± 4 Ω and uses gas-injected foam fluoropolymer (78 % VoP, 54 pF/m) to prevent pulse distortion.

Why is extra HIRF shielding important for weather radar data bus cables?

The ARINC 708 bus originates directly behind the forward nose radome bulkhead in close proximity to the high-power X-band weather radar antenna and lightning attachment zone, so 100 % foil plus a ≥ 95 % (or dual) silver-plated copper braid is essential. 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.

Does this cable fit standard ARINC 600 and MIL-DTL-38999 Size 8 twinax contacts?

Yes, our 22 AWG and 24 AWG ARINC 708 twinax constructions match the strip dimensions and crimp barrels of standard M39029 Size 8 concentric twinax contacts used on Collins, Honeywell, and Garmin weather radar R/T units. 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.

Can the same cable be used on both ARINC 708 and ARINC 429 / MIL-STD-1553B buses?

Yes—because 78 Ω ± 4 Ω and 54 pF/m exceed all electrical requirements of ARINC 429 and MIL-STD-1553B, airlines and MRO facilities often standardize on this low-loss 78 Ω twinax across all three bus types. 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.

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ARINC 708 / 453 Weather-Radar Avionics Data Bus Cable

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ARINC 708 / 453 Weather-Radar Avionics Data Bus CableAEEC ARINC 708 / 453 · 78 Ω ± 4 Ω · 1 Mbps · 22/24/26 AWG · Foam FEP (≤ 56 pF/m) · Foil

Fixed installation

Switchgear & control cabinet wiring

Furnace, kiln & high-temp zone

Energy chain / drag chain

ARINC 708 24 AWG Low-Loss Twinax (Ø 2.95 mm)

ARINC 708 22 AWG Extended-Reach Twinax (Ø 3.40 mm)

ARINC 708 Dual-Braid HIRF Grade (Ø 3.35 mm)

Electrical

Thermal

Mechanical

Resistance

Reference standards

Identification

Inspection certificate

Product approvals

Company certificates

01Selected sizes

02Reel & motion

03Message for our engineers

ARINC 429

ASCB-C / ASCB-D

BCB009

RG-400