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Product

industrial data rf cable seriesMIL-STD-1553B / M17/176-0000278 Ω ± 5 Ω @ 1 MHz · ≤98.4 pF/m-55 °C to +200 °C · PFA / ETFE

MIL-STD-1553 78 Ohm Twinaxial Avionics Command & Telemetry DataMIL-STD-1553B / M17/176-00002 78 Ω ± 5 Ω fluoropolymer twinaxial avionics data bus cable

78 Ω aerospace twinaxial command and telemetry data bus cable per MIL-STD-1553B and MIL-DTL-17/176 (M17/176-00002) with 1×2×24 AWG (19×36) silver-plated copper-alloy cores, blue/white PFA insulation, SPC braid, and +200 °C PFA jacket.

Low-EMC design
EMC screen
Flame-retardant
Approved
Order designation
M17/176-00002 Standard
Outer Ø ≈
3.28 mm
Wall thickness
0.38 mm
Total weight ≈
26.8 kg/km
Min. bend R (fixed)
17 mm
All sizes (8)
Request a quoteDatasheetWhatsApp
Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum
Impedance
78 Ω ± 5 Ω
Measured at 1 MHz per MIL-STD-1553B
Capacitance
≤ 98.4 pF/m
≤ 30.0 pF/ft core-to-core @ 1 kHz
Attenuation
≤ 4.92 dB/100m
≤ 1.5 dB/100ft at 1.0 MHz
Conductors
2 × 24/22 AWG
19×36 AWG Ag-Cu-alloy (blue/white)
Shielding
≥ 90 % Ag-Cu
Single or double SPC braid screen
Temperature
-55…+200 °C
PFA jacket (-65…+150 °C ETFE)

Typical values for this cable type, based on MIL-STD-1553B / SAE AS15531 / MIL-DTL-17/176 (78 Ω Avionics Twinax Bus) — confirmed in the datasheet and quotation for your order.

Application fit

Is MIL-STD-1553 right for your machine?

Specify MIL-STD-1553B (M17/176-00002) for military aircraft mission computers, flight control buses, stores management (MIL-STD-1760), naval combat buses, and launch-vehicle telemetry.

Switchgear & control cabinet wiring

Suitable

Sub-miniature Ø 3.28 mm OD and 19-strand Cu-alloy cores route easily into TRB plugs and D38999 size 8 twinax contacts.

Fixed installation

Suitable

PFA or cross-linked ETFE fluoropolymer jacket withstands -55 °C to +200 °C, Skydrol, Jet-A1 fuel, and FAR 25.869 flammability.

VFD inverter to AC motor screened feeder

Suitable

Tight ≤ 25.4 mm twist lay, ≤ 2 % unbalance, and ≥ 90 % SPC braid reject 400 Hz aircraft power and HIRF radar fields.

Motorised monospiral reel

Not suitable

Designed for airframe, missile, and spacecraft wire harnesses rather than industrial reeling drums.

Use DH+ 9463F Industrial Bus
Typical machinesFighter, Transport & Rotorcraft AvionicsMIL-STD-1760 Smart Weapons PylonsSpacecraft & Launch Vehicle OBCDH BusesMain Battle Tank & Armored VetronicsNaval Shipboard Combat Data Buses

Construction

Layer by layer

M17/176-00002 twinax build: 2 × 24 AWG (19×36 AWG) silver-plated copper-alloy conductors, blue & white PFA insulation, fluoropolymer binder, ≥ 90 % SPC braid, and blue PFA jacket.

12345
Schematic, not to scale — generated from the layer data
#LayerMaterial & reference
1Silver-plated high-strength copper-alloy pair2 × 24 AWG (19×36 AWG, Ø 0.61 mm) silver-coated high-strength copper alloy per ASTM B624 (or 22/20 AWG low-loss)High tensile break strength and vibration fatigue resistance in airframe harnesses
2PFA or microporous ePTFE core insulationExtruded perfluoroalkoxy (PFA, M17/176-00002) or expanded PTFE (1 × blue, 1 × white, Ø 1.14 mm)Holds 78 Ω ± 5 Ω at 1 MHz and ≤ 98.4 pF/m mutual capacitance across -55 to +200 °C
3Fluoropolymer core binder tapeConcentric PTFE/PFA binder wrap over the twisted blue/white pair (≥ 39.4 twists/m)Preserves pair symmetry and ≤ 2 % core-to-shield capacitance balance
4Silver-plated copper wire braid shieldASTM B298 38 AWG silver-plated copper braid (≥ 90 % optical coverage; double-braid on HIRF types)Low surface transfer impedance and 360° TRB/D38999 crimp termination
5PFA, ETFE or LSZH outer jacketBlue PFA jacket (Ø 3.28 mm on M17/176-00002), white laser-markable ETFE (EN 3375), or shipboard LSZHPasses FAR 25.869 vertical burn and aircraft fluid immersion tests

M17/176-00002 (24 AWG PFA · Ø 3.28 mm)

Qualified MIL-DTL-17/176 78 Ω twinax rated -55 °C to +200 °C with blue PFA jacket

1553B Low-Loss 22 AWG / Double-Shield (EN 3375)

Expanded-PTFE low-loss (≤ 2.8 dB/100m @ 1 MHz) and double-screened HIRF airframe variants

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on MIL-STD-1553B / SAE AS15531 / MIL-DTL-17/176 (78 Ω Avionics Twinax Bus). Values for your order are confirmed in the datasheet and quotation.

Electrical

Characteristic impedance
78 Ω ± 5 Ω at 1.0 MHz
Mutual capacitance
≤ 98.4 pF/m (30.0 pF/ft) max.
Capacitance unbalance
≤ 2.0 % (conductor-to-shield)
Attenuation @ 1.0 MHz
≤ 4.92 dB/100m (1.5 dB/100ft) max.
Conductor DC resistance @ 20 °C
≤ 93.5 Ω/km (24 AWG Cu-alloy) · ≤ 53.1 Ω/km (22 AWG)
Dielectric withstand voltage
1,500 V RMS (core/core) · 1,000 V RMS (core/shield)

Thermal

Operating temp. (M17/176-00002)
-55 °C to +200 °C continuous (PFA)
Operating temp. (ETFE / Space)
-65 °C to +150 °C (ETFE) · -65 to +200 °C (ePTFE)
Continuous working voltage
600 V RMS max.

Mechanical

Conductor build
2 × 24 AWG (19×36 AWG SPC alloy) or 22 AWG
Overall cable diameter
3.28 mm (0.129 in) M17/176-00002
Pair twist lay length
≤ 25.4 mm (≥ 12 twists per foot)
Min. bending radius
5 × OD (17 mm) fixed · 10 × OD dynamic

Resistance

Flammability & smoke
FAR 25.869 / ABD0031 / MIL-DTL-17 pass
Aircraft fluids
Resists Skydrol, Jet-A1, MIL-PRF-5606, de-icer
Shield optical coverage
≥ 90 % single braid · ≥ 95 % double shield

Reference standards

Bus & cable standards
MIL-STD-1553B, SAE AS15531, MIL-DTL-17/176
European aerospace
EN 3375-003, EN 3375-004, PAN 6421
RoHS & REACH
RoHS 3 & REACH SVHC compliant

Identification

Core / jacket colours
Blue & White cores · Blue PFA or White ETFE jacket
Surface legend
TEBAOFLEX M17/176-00002 MIL-STD-1553B 78 OHM TWINAX
Customs tariff (HS)
8544.49

Sizes

8 standard configurations (MIL-STD-1553)

Engineering dimensions, impedance, propagation velocity, and electrical ratings for MIL-STD-1553 per MIL-STD-1553B / SAE AS15531 / MIL-DTL-17/176 (78 Ω Avionics Twinax Bus).

Dimensions & weights
Order designationImpedance / sizeConductor & dielectricWall ≈
mm		Outer Ø ≈
mm		Metal
kg/km		Weight ≈
kg/km		Min. bend R
fixed mm		Enquiry
Standard MIL-STD-1553 configurations
M17/176-00002 Standard78 Ω · 2×24 AWG PFA19×36 SPC Alloy + PFA0.383.2814.526.817
EN 3375-003 24 AWG ETFE78 Ω · 2×24 AWG ETFE19×36 SPC Alloy + ETFE0.353.1514.524.016
1553B-DS24 Double Shield78 Ω · 2×24 AWG 2×Braid19×36 SPC + Foil/2×Braid0.423.8523.036.520
1553B-LL22 Low-Loss78 Ω · 2×22 AWG ePTFE19×34 SPC + ePTFE + ETFE0.403.9521.034.020
1553B-LL20 Long-Trunk78 Ω · 2×20 AWG ePTFE19×32 SPC + ePTFE + ETFE0.454.7531.048.024
1553B-26 Sub-Miniature78 Ω · 2×26 AWG ePTFE19×38 SPC Alloy + ETFE0.302.659.817.514
1553B-LSZH Shipboard78 Ω · 2×22 AWG LSZH19×34 Sn-Cu + PE + LSZH0.755.6026.052.028
1553B-SPACE Low-Outgas78 Ω · 2×24 AWG Polyimide19×36 SPC + ePTFE/PI Tape0.323.1014.523.016
  • 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 MIL-STD-1553 subject to standard manufacturing tolerances per MIL-STD-1553B / SAE AS15531 / MIL-DTL-17/176 (78 Ω Avionics Twinax Bus).

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-STD-1553B / SAE AS15531 / MIL-DTL-17/176 (78 Ω Avionics Twinax Bus)Every manufactured length
Dielectric spark & high-voltage withstand test100 % in-line spark and AC/DC dielectric withstand per MIL-STD-1553B / SAE AS15531 / MIL-DTL-17/176 (78 Ω Avionics Twinax Bus)Every spool or drum length
Sample tests
Insertion loss (attenuation), velocity & capacitance checkAttenuation (dB/100m), VoP (%), and capacitance within MIL-STD-1553B / SAE AS15531 / MIL-DTL-17/176 (78 Ω Avionics Twinax Bus) limitsPer production batch
Screening attenuation, transfer impedance & environmental qualificationQualified to MIL-STD-1553B / SAE AS15531 / MIL-DTL-17/176 (78 Ω Avionics Twinax Bus) 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-STD-1553B / SAE AS15531 / MIL-DTL-17/176 (78 Ω Avionics Twinax Bus)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 M17/176-00002 MIL-STD-1553B 78 OHM TWINAX AVIONICS BUS
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

PDFMIL-STD-1553 78 Ohm Twinaxial Avionics Command & Telemetry Data – technical datasheet8 sizes · construction, technical data, approvalsXLSXMIL-STD-1553 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 are the mandatory electrical parameters of a MIL-STD-1553B data bus cable?
Section 4.5.1.1 of MIL-STD-1553B specifies a characteristic impedance of 78 Ω ± 5 Ω at 1.0 MHz, core-to-core capacitance ≤ 30.0 pF/ft (98.4 pF/m), core-to-shield capacitance unbalance ≤ 2 %, attenuation ≤ 1.5 dB/100ft (4.92 dB/100m) at 1.0 MHz, ≥ 90 % shield coverage, and ≥ 12 twists/ft (≤ 25.4 mm lay).
Why does M17/176-00002 use silver-plated high-strength copper alloy instead of pure soft copper?
At 24 AWG (0.20 mm²), pure annealed copper can stretch or break during high-density airframe harness pulling and crimp termination. ASTM B624 high-strength copper alloy increases tensile breaking load by > 50 % and flex life by 3× while silver plating preserves 1 MHz skin-depth conductivity.
When should I use low-loss ePTFE 22 AWG or double-shielded MIL-STD-1553B cable?
Use M17/176-00002 (Ø 3.28 mm, PFA) for standard fighter/helicopter harnesses and +200 °C engine-bay zones; use 22 AWG expanded-PTFE low-loss variants (≤ 2.8 dB/100m @ 1 MHz) for large transport aircraft trunks, or double-shielded EN 3375 variants in open composite airframes exposed to HIRF radar fields.
Which connectors mate with MIL-STD-1553B twinax cables?
MIL-STD-1553B cables terminate to standard concentric twinax/triax bayonet plugs (TRB / TRS), threaded TRT plugs, and MIL-DTL-38999 Series III size 8 twinax contacts.

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MIL-STD-1553 78 Ohm Twinaxial Avionics Command & Telemetry Data

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Reel & motion:
- Reel type: 
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- Travel speed (m/min): 
- Max. acceleration: 
- Cycles per hour: 
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- Ambient temperature: 
- Exposure (outdoor, water, oil, abrasion): 
- Destination country: 
- Equipment and operating conditions:
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