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LMR-500 is a super-flexible low-loss RF coaxial cable utilizing a foam polyethylene dielectric material. Compared to traditional RG series cables, it exhibits significantly optimized attenuation values within the 900MHz to 5.8GHz frequency band, with lower insertion loss (such as loss control within a reasonable threshold at 5.8GHz), making it suitable for high-frequency signal transmission. With a characteristic impedance of 50 ohms, it closely matches communication systems and boasts voltage standing wave ratio (VSWR) performance, reducing signal reflection.
| Structure parameters | ||
| Item | Material | Diamenter (mm) |
| Inner Conductor | Copper clad aluminum wire | 3.61 |
| Dielectric | PE | 9.4 |
| Outer Conductor | Tin plated copper wire weaving | 10.29 |
| Sheath | PE | 12.7 |
| Performance parameters | ||
| Capacitor | 77.4pF/m | |
| Impedance | 50ohm | |
| Transmission rate | 86% | |
| Internal conductor DC resistance | 2.82 ohm/m | |
| Outer conductor DC resistance | 4.17 OHM/m | |
| Maximum operating voltage | 8000Vrms | |
| Maximum operating frequency | 22000MHz | |
| Working temperature range | -40～+80℃ | |
| Bending radius | 64mm | |
| ROHS/CE/FCC | YES | |
| Frequency | 30MHz | 1.8dB/m |
| 50MHz | 2.3dB/m | |
| 150MHz | 4.0dB/m | |
The LMR500 coaxial cable boasts an ultra-flexible structure and convenient installation. With a diameter of 0.5 inches (approximately 12.7mm), it features a small bending radius, enabling wiring in confined spaces. Its internal structure remains intact even after repeated bending. It is compatible with conventional manual tools for installation, eliminating the need for specialized jumper cables and serving as a viable replacement for traditional corrugated copper cables. The sheath is made of black TPE or UV-resistant polyethylene, offering strong weather resistance and adapting to a wide temperature range from -40°C to +85°C, making it suitable for long-term outdoor exposure. The dual-shield design (aluminum foil + braided copper mesh) provides a shielding effectiveness of ≥90dB, effectively suppressing electromagnetic interference.
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