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trc-50-2-triaxial-cable---50-ohm-guarded-coax, trc-50-2-triaxial-cable---50-ohm-guarded-coax, /triaxial-coaxial-cable
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Certification: Manufactured under Worldpeak's strict quality control standards.
Tech & Material: 50-ohm dual-shielded, solid bare copper core with PE/PVC insulation.
Effect & Scenario: Eliminates leakage for femtoamp accuracy; ideal for engineers in semiconductor and lab testing.
Zhenjiang Worldpeak Communication Co., Ltd. presents the TRC-50-2 triaxial cable, a high-precision 50 ohmguarded coaxial cable engineered for critical low-current and high-isolation measurement environments. Featuring a specialized dual-shield structure with two tinned copper braids separated by a solid polyethylene dielectric layer, the TRC-50-2 triaxial cable drives leakage current to near-zero levels. This low noise measurement cable ensures high signal integrity for semiconductor testing, electrometer routing, and high-impedance voltage evaluations down to the femtoamp level.
In modern electronic test environments, standard coaxial cables often introduce subtle dielectric leakage currents that obscure ultra-low current measurements. The TRC-50-2 triaxial cable solves this fundamental limitation through a triaxial architecture designed to support active guarding.
By surrounding the center conductor with an inner shield driven at the exact same electrical potential, the voltage drop across the primary dielectric drops to near zero, effectively eliminating dielectric leakage paths. Manufactured by Zhenjiang Worldpeak Communication Co., Ltd., this TRC-50-2 guarded cable is encased in a robust 6.80 mm PVC outer jacket to withstand repeated laboratory manipulation and industrial testing setups.
Dual-Shield Guarded Architecture: Features an inner tinned copper braid guard shield and a separate outer ground shield for optimal isolation.
Femtoamp-Level Leakage Control: Suppresses internal dielectric current paths when connected to active instrument guard outputs.
Low Noise Transmission: Incorporates physical charge-bleed layers between materials to reduce triboelectric charge buildup caused by flexing.
Standardized 50 Ohm Impedance: Matches standard RF, high-impedance, and parametric test equipment interfaces.
Broad Connector Compatibility: Perfectly supports industry-standard 3-Lug TRB connectors and BNC Triax termination hardware.
From an engineering perspective, replacing standard coaxial lines with a high-performance guarded coaxial cable is crucial when measuring signals below 1 nA.
In standard coaxial cables, a potential difference between the center conductor and the grounded braid creates microscopic leakage currents across the dielectric insulation. The TRC-50-2 triaxial cable breaks this paradigm. The inner guard shield is driven by an electrometer or Source-Measure Unit (SMU) buffer amplifier to the exact voltage of the center signal wire. According to Ohm's Law, because the voltage difference between the center conductor and the inner guard shield is zero, no leakage current can flow across the inner dielectric material.
Mechanical flexing of standard measurement cables generates static electricity via triboelectric friction between the braid and the insulator. The TRC-50-2 triaxial cable uses optimized layer clearances and material interfaces to rapidly dissipate static charges before they inject noise into high-impedance measurement channels.
| Parameter | Specification Value | Engineering Notes |
| Impedance | 50 ohm | Characteristic system impedance |
| Inner Conductor | 0.94 mm Solid Bare Copper (BC) | High-conductivity core conductor |
| Inner Dielectric | 2.80 mm Solid Polyethylene (PE) | Primary conductor insulation |
| Inner Shield (Guard) | 3.30 mm Tinned Copper Braid | Active driven guard layer |
| Outer Dielectric | 5.00 mm Solid Polyethylene (PE) | Inter-shield insulation layer |
| Outer Shield (Ground) | 5.80 mm Tinned Copper Braid | Environmental EMI/RFI shielding |
| Outer Jacket | 6.80 mm Polyvinyl Chloride (PVC) | Outer mechanical protection |
| Velocity of Propagation | 66% | Nominal signal velocity ratio |
| Nominal Capacitance | 98 pF/m | Core-to-guard capacitance |
| Attenuation @ 100 MHz | 26 dB/100m | RF signal loss reference |
| Attenuation @ 400 MHz | 56 dB/100m | Upper-frequency loss reference |
| Operating Temperature | -25°C to +75°C | Industrial test range |
| Min. Bend Radius | 35 mm | Preserves dielectric integrity |
| Cable Weight | 0.055 kg/m | Bulk cable density |
Semiconductor Parametric Characterization: Connects wafer probe stations to SMUs for accurate femtoamp leakage, threshold voltage, and transistor modeling.
Capacitance-Voltage (C-V) Testing: Eliminates stray capacitance and dielectric absorption during high-frequency junction testing.
High-Impedance Electrometer Cabling: Connects low-noise electrometers to high-resistance materials without loading down the signal source.
Advanced Physics Research: Serves as a primary triaxial interconnect cable in particle detection, radiation sensing, and cryogenic sensor interfaces.
Partnering with Zhenjiang Worldpeak Communication Co., Ltd. for your TRC-50-2 triaxial cable needs offers clear commercial advantages:
Reduced Test Downtime: Premium manufacturing reduces measurement errors, false test failures, and recalibration delays.
Custom OEM Integration: Zhenjiang Worldpeak Communication Co., Ltd. provides factory-terminated assemblies, customized jacket markings, and specific assembly lengths for equipment manufacturers.
Cost-Effective Scalability: Get enterprise-grade measurement cable performance at factory-direct pricing for both development and production scale.
Guarded Terminal Wiring: Always connect the inner shield to the active instrument guard output terminal and the outer shield to chassis ground.
Maintain Minimum Bend Radius: Do not bend the TRC-50-2 guarded cable beyond its 35 mm bend radius limit to prevent physical displacement of dielectric layers.
Dedicated Triaxial Connectors: Terminate exclusively with 3-Lug TRB or BNC Triax connectors to maintain proper isolation between shield layers.
Standard coax cannot support active guarding. The TRC-50-2 triaxial cable features an isolated inner guard shield that neutralizes the voltage differential across the inner dielectric, eliminating dielectric leakage currents during low-current measurements.
The TRC-50-2 triaxial cable is optimized for industry-standard 3-Lug TRB connectors and BNC Triax connectors designed for 6.80 mm cable profiles.
Zhenjiang Worldpeak Communication Co., Ltd. subjects all manufactured cable lots to rigorous shield-to-shield insulation resistance testing, dimensional inspections, and impedance continuity checks.
