3659 series flat data cable 28 AWG stranded, Mass-Term, PVC/PVC, meets the external wiring requirements of National Electrical Code Article 725 (CL2), UL listed for USA and Canadian markets, dual shielding provides 35 db average shielding effectiveness.
The .050″ round shielded/jacketed flat cable from 3M’s 3659 Series is a 28 AWG stranded, mass‑term, PVC‑on‑PVC cable. Its round construction eases routing, and the primary cable can be zipped for branching or discrete terminations. Dual shielding—0.001 in aluminum/polyester film foil plus 90 % tinned copper braid—delivers about 35 dB average shielding effectiveness and meets NEC Article 725 (CL2) requirements, with UL listing for U.S. and Canadian markets.
Electrical characteristics include a 300 V rating (U.S. CL2/AWM, Canada 300 V, EU <50 V), characteristic impedance of 62 Ω (unbalanced) or 106 Ω (balanced), capacitance of 27.7 pF/ft (unbalanced) or 15.2 pF/ft (balanced), and inductance of 0.13 µH/ft (unbalanced) or 0.20 µH/ft (balanced). The cable operates from –20 °C to +80 °C (U.S. CL2) and carries a flammability rating of NEC 725 CL2 (U.S.) or FTI (Canada). Ordering options include standard black jacket or special colors, with roll lengths of 100 ft or 300 ft.
| Cable type | .050" Round Shielded/Jacketed Flat Cable |
|---|---|
| AWG | 28 AWG |
| Voltage rating (USA) | 300 V (NEC 725 CL2 or AWM) |
| Characteristic impedance (unbalanced) | 62 Ω |
| Capacitance (unbalanced) | 27.7 pF/ft |
| Inductance (unbalanced) | 0.13 µH/ft |
| Shielding effectiveness | ≈35 dB average |
| Temperature rating | -20 °C to +80 °C (CL2) |
| UL listing | UL listed for USA and Canada (File No. E118773) |
The cable is rated for 300 V and complies with NEC Article 725 CL2 or AWM standards.
It uses dual shielding: a 0.001 in thick aluminum/polyester film foil and a 90 % coverage tinned copper braid, giving about 35 dB average shielding effectiveness.
The cable is rated for –20 °C to +80 °C (CL2) in the United States and up to 80 °C in Canada.
The cable offers 7 × 36 (7 × 0.127 mm) tinned stranded copper conductors, with part numbers ranging from 3659/09 to 3659/64 indicating various overall dimensions.