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Product

industrial data rf cable seriesESA ESCC 3902/003 & /004100 Ω ± 6 Ω · <0.1 ns/m Skew400 Mbps LVDS · -100 to +200 °C

SpaceWire ESCC 3902 ESCC 3902 SpaceWire High-Speed LVDSESA ESCC 3902/003 & /004 100 Ω ± 6 Ω 4×2×28/26 AWG ePTFE SpaceWire LVDS spacecraft cable

Radiation-hardened 100 Ω SpaceWire LVDS spacecraft harness cable per ESA ESCC 3902/003 and ECSS-E-ST-50-12C (400 Mbps) with four individually braided 26/28 AWG SPC-alloy pairs, microporous ePTFE dielectric (76 % VoP), overall SPC braid, and PFA jacket.

Low-EMC design
EMC screen
Approved
Flame-retardant
Order designation
ESCC 3902/003-01 (28 AWG)
Outer Ø ≈
5.90 mm
Wall thickness
0.40 mm
Total weight ≈
68.0 kg/km
Min. bend R (fixed)
36 mm
All sizes (8)
Request a quoteDatasheetWhatsApp
Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum
Impedance
100 Ω ± 6 Ω
Differential LVDS (ECSS-E-50-12C)
Intra-pair skew
< 0.10 ns/m
Data-Strobe DS encoding sync
Data rate
2 to 400 Mbps
Full-duplex LVDS up to 10 m
Construction
4×2×28/26 AWG
3902/003 (28 AWG) · /004 (26 AWG)
Shielding
4×Braid + Braid
Individual SPC braids + overall
Temperature
-100…+200 °C
Vacuum outgas CVCM < 0.1%

Typical values for this cable type, based on ESA ESCC 3902/003 & 3902/004 / ECSS-E-ST-50-12C (100 Ω SpaceWire LVDS) — confirmed in the datasheet and quotation for your order.

Application fit

Is SpaceWire ESCC 3902 right for your machine?

Specify SpaceWire ESCC 3902/003 and 3902/004 for LEO/GEO satellite payload data handling, synthetic aperture radar (SAR), Earth-observation optical instruments, deep-space probes, and Micro-D 9-pin SpaceWire harnesses.

Switchgear & control cabinet wiring

Suitable

Ultra-tight < 0.10 ns/m intra-pair and < 0.15 ns/m inter-pair skew ensures error-free 400 Mbps SpaceWire Data-Strobe recovery.

VFD inverter to AC motor screened feeder

Suitable

Four individually braided SPC pairs inside an overall ≥ 90 % SPC braid deliver > 65 dB NEXT and > 85 dB EMI isolation.

Fixed installation

Suitable

ePTFE core and PFA jacket survive -100 to +200 °C thermal-vacuum cycling, space radiation, and ECSS-Q-ST-70-02 outgassing.

Motorised monospiral reel

Not suitable

Precision spacecraft harness cable is designed for satellite and launch-vehicle integration, not industrial reeling drums.

Use SABclean CATLine
Typical machinesLEO / MEO / GEO Communications SatellitesEarth Observation Optical & SAR PayloadsDeep-Space & Planetary Science ProbesLaunch Vehicle Avionics & TelemetrySpacecraft Ground EGSE Test Racks

Construction

Layer by layer

ESCC 3902 SpaceWire build: 4 twisted pairs of 28 AWG (19×40) or 26 AWG (19×38) SPC alloy with ePTFE insulation, 4 individual SPC pair braids + FEP/PTFE wraps, overall SPC braid, and white/blue PFA jacket.

12345
Schematic, not to scale — generated from the layer data
#LayerMaterial & reference
1Silver-plated high-strength copper-alloy pairs4 × 2 × 28 AWG (19×0.079 mm, ESCC 3902/003) or 26 AWG (19×0.10 mm, ESCC 3902/004) SPC alloyHigh tensile strength for 9-pin MDM Micro-D crimping and launch vibration survival
2Microporous expanded PTFE (ePTFE) insulationLow-density tape-wrapped/extruded ePTFE (80 % VoP, ≤ 45 pF/m) or Coax-Twinax parallel pair geometryAchieves < 0.10 ns/m intra-pair skew and 100 Ω ± 6 Ω differential impedance
34 × individual silver-plated copper pair braidsEach differential pair individually shielded with ≥ 90 % coverage 40 AWG SPC braid + fluoropolymer wrapIsolates Dout/Sout transmit pairs from Din/Sin receive pairs (> 65 dB NEXT)
4Overall silver-plated copper wire braid screenOverall 38 AWG silver-plated copper braid (≥ 90 % optical coverage)Provides 360° backshell grounding and spacecraft harness EMI containment
5Radiation-resistant PFA fluoropolymer outer jacketExtruded perfluoroalkoxy (PFA) jacket (Ø 6.1 mm max on 3902/003; Ø 7.0 mm on 3902/004)ECSS-Q-ST-70-02 vacuum outgassing compliant (TML < 1.0 %, CVCM < 0.1 %)

ESCC 3902/003-01 (4×2×28 AWG Standard)

Compact Ø 5.8–6.1 mm, ~68 g/m spacecraft harness cable for standard SpaceWire links up to 10 m

ESCC 3902/004-01 (4×2×26 AWG Low-Loss)

Lower-attenuation Ø 6.8–7.0 mm, ~88 g/m 26 AWG SpaceWire cable for extended satellite bus trunks

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on ESA ESCC 3902/003 & 3902/004 / ECSS-E-ST-50-12C (100 Ω SpaceWire LVDS). Values for your order are confirmed in the datasheet and quotation.

Electrical

Differential impedance
100 Ω ± 6 Ω (measured by TDR, tr ≤ 200 ps)
Intra-pair & inter-pair skew
< 0.10 ns/m (intra-pair) · < 0.15 ns/m (Data-to-Strobe)
Velocity of propagation
80 % nominal (4.17 ns/m delay, ≈ 43 pF/m)
Attenuation @ 100 / 400 MHz
≤ 23 / ≤ 45 dB/100m (28 AWG) · ≤ 17 / ≤ 34 dB/100m (26 AWG)
Conductor DC resistance @ 20 °C
≤ 256 Ω/km (28 AWG 3902/003) · ≤ 160 Ω/km (26 AWG 3902/004)

Thermal

Operating temperature range
-100 °C to +200 °C (thermal-vacuum orbital duty)
Max. operating voltage
250 V RMS · 1,000 V RMS dielectric test
Vacuum outgassing (ECSS)
TML < 1.0 % · RML < 1.0 % · CVCM < 0.10 %

Mechanical

Pair configuration
4 Individually Shielded Twisted Pairs (4 × STP) + Overall Braid
Overall diameter & mass
Ø 5.8–6.1 mm / 68 g/m (3902/003) · Ø 6.8–7.0 mm / 88 g/m (/004)
Min. bending radius
6 × OD (36 mm static) · 10 × OD dynamic

Resistance

Radiation resistance
≥ 100 Mrad (1 MGy) total ionizing dose (PFA/ePTFE)
Atomic oxygen & UV
Fluoropolymer sheath resists LEO atomic oxygen & UV
Flammability
Non-flammable in vacuum and 30 % O2 crewed cabin atmosphere

Reference standards

ESA / ESCC detail spec
ESCC 3902/003 (28 AWG) & ESCC 3902/004 (26 AWG)
Protocol standard
ECSS-E-ST-50-12C SpaceWire (9-pin Micro-D MDM)
RoHS & REACH
ESA Space QPL / RoHS 3 & REACH compliant

Identification

Outer jacket colour
White or Translucent Blue PFA (laser markable)
Surface legend
TEBAOFLEX ESCC 3902/003 SPACEWIRE 4x2x28AWG 100 OHM LVDS
Customs tariff (HS)
8544.49

Sizes

8 standard configurations (SpaceWire ESCC 3902)

Engineering dimensions, impedance, propagation velocity, and electrical ratings for SpaceWire ESCC 3902 per ESA ESCC 3902/003 & 3902/004 / ECSS-E-ST-50-12C (100 Ω SpaceWire LVDS).

Dimensions & weights
Order designationImpedance / sizeConductor & dielectricWall ≈
mm		Outer Ø ≈
mm		Metal
kg/km		Weight ≈
kg/km		Min. bend R
fixed mm		Enquiry
Standard SpaceWire ESCC 3902 configurations
ESCC 3902/003-01 (28 AWG)100 Ω · 4×2×28 AWG19×40 SPC Alloy + ePTFE + 5×Braid0.405.9042.068.036
ESCC 3902/003-02 Low-Mass100 Ω · 4×2×28 AWG Foil/Braid19×40 SPC + Pair Foil + Braid0.355.2034.052.031
ESCC 3902/004-01 (26 AWG)100 Ω · 4×2×26 AWG Low-Loss19×38 SPC Alloy + ePTFE + 5×Braid0.456.9058.088.042
ESCC 3902/004-02 Low-Mass100 Ω · 4×2×26 AWG Foil/Braid19×38 SPC + Pair Foil + Braid0.406.1046.071.037
SpaceWire Micro 30 AWG100 Ω · 4×2×30 AWG CubeSat7×38 SPC Alloy + ePTFE0.304.5025.039.027
SpaceWire Twin-Coax 28 AWG100 Ω · 4×(2×50 Ω Coax)Zero-Skew Matched Micro-Coax0.426.0045.070.036
SpaceFibre ESCC 3902-6G100 Ω · 6.25 Gbps Multi-GHzLow-Skew Multi-Gigabit Twinax0.456.4048.076.038
SpaceWire EGSE Ground Test100 Ω · 4×2×26 AWG PURFlexible Ground Lab Harness0.707.2052.084.043
  • 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 SpaceWire ESCC 3902 subject to standard manufacturing tolerances per ESA ESCC 3902/003 & 3902/004 / ECSS-E-ST-50-12C (100 Ω SpaceWire LVDS).

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 ESA ESCC 3902/003 & 3902/004 / ECSS-E-ST-50-12C (100 Ω SpaceWire LVDS)Every manufactured length
Dielectric spark & high-voltage withstand test100 % in-line spark and AC/DC dielectric withstand per ESA ESCC 3902/003 & 3902/004 / ECSS-E-ST-50-12C (100 Ω SpaceWire LVDS)Every spool or drum length
Sample tests
Insertion loss (attenuation), velocity & capacitance checkAttenuation (dB/100m), VoP (%), and capacitance within ESA ESCC 3902/003 & 3902/004 / ECSS-E-ST-50-12C (100 Ω SpaceWire LVDS) limitsPer production batch
Screening attenuation, transfer impedance & environmental qualificationQualified to ESA ESCC 3902/003 & 3902/004 / ECSS-E-ST-50-12C (100 Ω SpaceWire LVDS) EMC shielding, thermal, and flame/fluid criteriaType qualification

Inspection certificate

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

Product approvals

ESA ESCC 3902/003 & 3902/004 / ECSS-E-ST-50-12C (100 Ω SpaceWire LVDS)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 ESCC 3902/003 SPACEWIRE 4x2x28AWG 100 OHM LVDS ECSS-E-ST-50-12C
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

PDFSpaceWire ESCC 3902 ESCC 3902 SpaceWire High-Speed LVDS – technical datasheet8 sizes · construction, technical data, approvalsXLSXSpaceWire ESCC 3902 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 does SpaceWire's Data-Strobe (DS) encoding work across the four differential pairs in ESCC 3902?
Per ECSS-E-ST-50-12C, SpaceWire uses four 100 Ω LVDS differential pairs: two pairs in each direction (Data Out + Strobe Out, and Data In + Strobe In). The Strobe line changes state whenever the Data line remains constant from one bit period to the next, allowing the receiver to recover the bit clock purely by XORing Data and Strobe—provided cable intra-pair and Data-to-Strobe skew remain < 0.10–0.15 ns/m.
What is the difference between ESCC 3902/003 and ESCC 3902/004?
ESCC 3902/003 uses 28 AWG (19×0.079 mm) silver-plated copper-alloy conductors for minimum harness mass (~68 g/m, Ø 5.9 mm) and direct crimp termination into 9-pin Micro-D (MDM) contacts, whereas ESCC 3902/004 uses larger 26 AWG (19×0.10 mm) conductors (~88 g/m, Ø 6.9 mm) to cut RF attenuation by ~25 % on longer spacecraft bus runs.
Why are five separate braided shields (4 pair braids + 1 overall braid) used in ESCC 3902?
In full-duplex 400 Mbps LVDS links, near-end crosstalk (NEXT) from the local transmitter into the adjacent receiver pair can close the eye diagram. Wrapping each of the four pairs in its own ≥ 90 % silver-plated copper braid inside an overall ≥ 90 % SPC braid achieves > 65 dB pair-to-pair isolation and > 85 dB external EMI shielding.
Does ESCC 3902 meet ESA thermal-vacuum outgassing requirements?
Yes. Constructed entirely of silver-plated copper alloy, expanded PTFE, and extruded PFA, the cable passes ECSS-Q-ST-70-02 with Total Mass Loss (TML) < 1.0 % and Collected Volatile Condensable Material (CVCM) < 0.10 %.

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SpaceWire ESCC 3902 ESCC 3902 SpaceWire High-Speed LVDS

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