PSE460L-31G-BF
High Frequency Low Loss Phase Stable Coaxial Cable
Engineered for high-reliability RF and microwave systems operating up to 31 GHz. Featuring extended Low-Density PTFE (LD-PTFE) dielectric material, a solid silver-plated copper conductor (1/1.02mm), and double shielding tape/braid construction, PSE460L-31G-BF achieves superior attenuation characteristics and excellent phase stability under flexure.
Max Frequency:DC-31GHz
Velocity of Prop.：76%
Inner ConductorStranded SPC (1/1.02mm)
Outer Diameter:4.6mm
Structure & Construction Characteristics
| Structure Layer | Material Description | Construction Details | Nom. O.D. (mm) |
|---|---|---|---|
| Inner Conductor | Silver Plated Copper | 1 / 1.02 mm | 1.02 |
| Insulation Dielectric | LD-PTFE (Low-Density PTFE) | — | 3.07 |
| Inner Shield | Silver Plated Copper Strip Tape | — | 3.27 |
| Interlayer | LD-PTFE Tape | — | 3.54 |
| Outer Shield | Silver Plated Copper Wire Braid | — | 3.94 |
| Outer Jacket | Blue FEP (Fluorinated Ethylene Propylene) | — | 4.60 |
Electrical & Mechanical Characteristics
| Electrical Parameter | Standard Value | Mechanical & Environmental | Standard Value |
|---|---|---|---|
| Impedance | 50 Ohm | Min. Static Bend Radius | 18.40 mm |
| Capacitance | 88 pF/m | Min. Dynamic Bend Radius | 46.00 mm |
| Velocity of Propagation | 76% | Nominal Weight | 0.051 kg/m |
| Max Operating Frequency | 31 GHz | Operating Temperature Range | -55°C to +165°C |
| Screening Effectiveness | > 90 dB | Phase Change VS Bending | ±0.2 °/GHz |
| Dielectric Withstanding Voltage | 1500 V DC | Phase Change VS Temp (-45~+85℃) | ≤ 1500 PPM |
Attenuation & Power Handling @ 25℃ & Sea Level
Insertion Loss Calculation Formula: IL = K1 * sqrt(F_MHz) + K2 * F_MHz (dB/100m)
Constants: K1 = 1.015556, K2 = 0.000598
| Frequency (MHz) | Nom. Attenuation (@25℃ & Sea Level) [dB/100m] | Max. Power Handling (@40℃ & Sea Level) [W] |
|---|---|---|
| 500 | 23.01 | 801 |
| 1000 | 32.71 | 563 |
| 2000 | 46.61 | 395 |
| 3000 | 57.42 | 321 |
| 6000 | 82.26 | 224 |
| 8000 | 95.62 | 193 |
| 10000 | 107.54 | 171 |
| 12400 | 120.51 | 153 |
| 18000 | 147.02 | 125 |
| 26500 | 181.18 | 102 |
| 31000 | 197.36 | 93 |
Cross-Reference & Form-Fit Interchangeability
Replaceable Equivalent: HUBER+SUHNER SUCOFLEX103
The PSE460L-31G-BF provides exact dimensional and electrical form-fit matching for seamless replacement of SUCOFLEX103 in high-frequency radar and test systems.
Frequently Asked Questions
How does the attenuation formula IL = K1 * sqrt(F_MHz) + K2 * F_MHz work for PSE460L-31G-BF?
The insertion loss (IL in dB/100m) at any frequency up to 31 GHz can be accurately predicted using K1 = 1.015556 and K2 = 0.000598. The K1 term models conductor skin effect losses, while K2 calculates the dielectric loss tangent within the LD-PTFE insulation, giving system designers high precision for budget analysis.
What advantages does LD-PTFE dielectric offer over standard solid PTFE in microwave assemblies?
Low-Density PTFE (LD-PTFE) introduces controlled micro-porosity, lowering the relative permittivity and enabling a higher velocity of propagation (76%). This significantly lowers insertion loss at higher microwave bands (up to 31 GHz) while improving phase stability vs bending (±0.2 °/GHz) and temperature changes (≤1500 PPM).
Is PSE460L-31G-BF fully interchangeable with HUBER+SUHNER SUCOFLEX103?
Yes, PSE460L-31G-BF is engineered as a direct form-fit-function alternative to SUCOFLEX103. It shares identical key specs, including 4.60 mm outer diameter, 18.40 mm static bend radius, 50 Ω impedance, and matching attenuation metrics across the DC to 31 GHz spectrum.
