General Product Overview
| Feature | Specification |
| Product Model | 137L/50 |
| Part Number | YZ137L/50 |
| Insulation Material | FEP (Fluorinated Ethylene Propylene) |
| Jacket Material | FEP (Fluorinated Ethylene Propylene) |
| Maximum Operating Voltage | 1000 Volts |
| Operating Temperature Range | -55 degrees Celsius to +125 degrees Celsius (-67 degrees Fahrenheit to +257 degrees Fahrenheit) |
| Minimum Bending Radius (Static) | 4.0 Millimeters |
| Optimal Preservation Period | Two Months |
| Standard Packing Mode | Paper Plate (800 Meters per Plate) |
Precision Construction Details
| Layer Component | Material Specification | Construction Design (n/mm) | Diameter (mm) |
| 1. Inner Conductor | Silver-plated Copper Wire | 7 x 0.105 | 0.315 plus or minus 0.02 |
| 2. Insulation Layer | FEP (Fluorinated Ethylene Propylene) – Transparent | Not Applicable | 0.925 plus or minus 0.03 |
| 3. Outer Conductor 1 (Shield) | Copper-Plastic Composite Tape (100 percent Coverage) | 0.012 x 3.2 | 0.95 plus or minus 0.03 |
| 4. Outer Conductor 2 (Shield) | Tinned Copper Wire (90 plus or minus 5 percent Coverage) | 16 / 5 / 0.05 | 1.15 plus or minus 0.05 |
| 5. Outer Jacket | FEP (Fluorinated Ethylene Propylene) | Not Applicable | 1.37 plus or minus 0.05 |
Electrical Performance Characteristics
| Performance Parameter | Technical Value |
| Characteristic Impedance (at 1ns) | 50 plus or minus 4 Ohm |
| Capacitance | 98 plus or minus 2 picofarads per meter |
| Propagation Velocity | 70 plus or minus 2 percent |
| Voltage Standing Wave Ratio (0 to 6 Gigahertz) | Less than or equal to 1.30 |
| Maximum Operating Voltage | 1000 Volts |
Signal Attenuation Reference Table (DC to 10 GHz)
| Frequency (Gigahertz) | Maximum Attenuation (Decibels per meter) |
| 1 GHz | Less than or equal to 1.60 dB per meter |
| 2 GHz | Less than or equal to 2.10 dB per meter |
| 3 GHz | Less than or equal to 2.60 dB per meter |
| 4 GHz | Less than or equal to 3.00 dB per meter |
| 5 GHz | Less than or equal to 3.40 dB per meter |
| 6 GHz | Less than or equal to 3.70 dB per meter |
| 7 GHz | Less than or equal to 4.11 dB per meter |
| 8 GHz | Less than or equal to 4.41 dB per meter |
| 9 GHz | Less than or equal to 4.76 dB per meter |
| 10 GHz | Less than or equal to 5.09 dB per meter |
Professional Industry Advantages
-
Ultimate Signal Integrity (L-Series): The “L” series designation represents an enhanced dual-shielding architecture. By combining a 100 percent coverage copper-plastic composite tape with a high-density tinned copper braid, this cable achieves the lowest attenuation levels in its class (only 5.09 dB per meter at 10 GHz), ensuring maximum data throughput with near-zero signal loss.
-
Superior Electromagnetic Shielding: Specifically engineered for environments with intense high-frequency interference. The dual-layer shield provides a robust barrier against external Electromagnetic Interference (EMI) and Radio Frequency Interference (RFI), maintaining a clean signal path in critical medical and radar applications.
-
Premium FEP Material Consistency: Utilizing high-grade Fluorinated Ethylene Propylene (FEP) for both the primary insulation and the outer jacket ensures uniform dielectric properties and exceptional resistance to chemicals, moisture, and aging.
-
Optimized Micro-miniature Dimensions: With a finished outside diameter of only 1.37 mm, this cable supports high-density cabling in extremely restricted spaces such as multi-channel robotic surgical probes, compact aerospace avionics, and high-speed multi-pin connectors.
-
Extreme Thermal Stability: Designed to operate reliably across a wide temperature spectrum from -55 degrees Celsius to +125 degrees Celsius, preserving its high-frequency performance even under the thermal stress of intensive high-power signal transmission.