Semi-Finished FTP CAT5e LAN Cable
Foil Shielded CAT5e Core for Moderate EMI Environments
View specifications →
Double Shielded CAT5e Core for Electrically Noisy Sites
S/FTP CAT5e is the most heavily shielded CAT5e construction we supply: every pair is wrapped in aluminium-polyester foil and the whole core sits inside a tinned copper braid, with the jacket left for your line. It is specified where motors, fluorescent lighting or HVAC equipment sit close to the cable route, and it is the core behind CPR-compliant shielded patch cable for airports, hospitals and rail projects.
Semi-Finished LAN CableCAT5e Semi-Finished Cores

Foil on each pair separates the pairs internally, while the braid deflects interference arriving from outside.
NEXT, return loss and attenuation stay within CAT5e limits near motors, lighting ballasts and HVAC gear.
60, 70 or 80 percent and above, so shielding cost matches the installation rather than a fixed catalogue figure.
Suits 1000BASE-T, PoE, VoIP and industrial Ethernet runs where downtime is expensive.
A cable that passes on the bench can fail beside a variable-speed drive. Double shielding removes that risk before it reaches the installer.
Braiding LAN cores is slow and machine-hungry. Buying the braided core keeps your jacketing line the only thing you schedule.
LSZH jacketing on this core produces cable classified for enclosed public spaces without redesigning the core.
| Characteristic Impedance | 100 ± 15 Ω |
|---|---|
| NEXT | ≥ 45 dB @ 100 MHz |
| PSNEXT | ≥ 43 dB |
| Return Loss | ≥ 16 dB |
| Attenuation | ≤ 22.0 dB/100m |
| DC Resistance | ≤ 9.5 Ω/100m |
| Propagation Delay | ≤ 538 ns/100m |
| Delay Skew | ≤ 45 ns/100m |
| Core Outer Diameter | Approx. 5.4 – 6.2 mm without jacket |
| Reel Lengths | 1,000 m / 2,000 m wooden drums |
| Packaging | PE-wrapped wooden reels or palletised rolls |
| Core Marking | Unprinted — for post-jacketing marking |
| MOQ | 3,000 – 5,000 metres per order |
| Standards | TIA/EIA-568.2-D, ISO/IEC 11801 Class D, EN 50173 |
Figures are the published specification for this product. Values outside this table are confirmed in writing before order rather than estimated.
Conductors are insulated in HDPE and colour-coded, twisted into pairs with lay length controlled pair by pair, then shielded with foil and where specified a braid. Electrical performance is verified against the published limits before the core is reeled. The jacket is not applied.
Solid bare copper to IEC 60228 Class 1 insulated in colour-coded HDPE.
Pair twist pitch controlled per pair, which is what decides NEXT and PSNEXT margin.
Foil coverage and drain wire contact checked where the construction is shielded.
NEXT, PSNEXT, return loss, attenuation and delay skew checked against the published limits.
PE film-wrapped wooden drums, cores left unprinted for your own marking.
Semi-Finished S/FTP CAT5e LAN Cable sits inside the Semi-Finished LAN Cable range. The products below are the closest alternatives or the parts most often ordered alongside it — compare the published specification tables rather than the descriptions when the choice is close.
Foil Shielded CAT5e Core for Moderate EMI Environments
View specifications →Individually Screened Pairs Plus Braid for High Interference Sites
View specifications →Unjacketed CAT5e Core for High Volume LAN Cable Production
View specifications →S is the overall tinned copper braid screen and FTP is the foil around each individual twisted pair. Both are present.
60 to 80 percent optical coverage, and the exact figure can be specified at 60, 70 or 80 percent and above.
It is compatible with RoHS, REACH, UL, CPR and CE requirements; the finished classification depends on the jacket you apply.
Approximately 5.4 to 6.2 mm outer diameter.
Yes. The construction is used for 1000BASE-T, PoE, VoIP and industrial Ethernet applications.
Send the construction, grade and quantity you need. We confirm the specification in writing before quoting.