UL2501 Effective anti-interference UL-Certified Cable

UL2501 Advantages  
Flexible Single-Core Shielding Design: Can be used individually or combined in multiple cables to meet different signal loop requirements  
Highly Flexible and Easy to Wire: Fine-stranded soft conductor combined with PVC sheathing, suitable for space-constrained scenarios  
Effective Shielding Against Interference: Aluminum foil shielding effectively suppresses electromagnetic interference, ensuring signal purity  
Dual U.S.-Canada Certification: Simultaneously passes UL and cUL certification, allowing access to the North American market  
Excellent Cost-Effectiveness: Significant price advantage among single-core shielded wires, suitable for bulk procurement  

UL2501 Selling Points  
Standard Single-Core Shielded Wire for North America: Widely used for single-point signal transmission in instruments, meters, and industrial control equipment in the U.S. and Canadian markets  
Dual-Certified Single-Core Cable: UL + cUL certification supports rapid entry into the North American precision equipment supply chain  
Plug-and-Play Single-Point Solution: Compatible with single-core connectors such as BNC and RCA, simplifying high-frequency signal wiring  
Economical Single-Point Shielding Choice: Provides low-cost signal wires for test equipment and audio equipment exported to North America  
Flexible Specifications and Fast Supply: Supports AWG 30–20 customization, full color range, supports small-batch quick response  

UL2501 Application Scope  
Signal Connections for Test Instruments: Oscilloscope probe wires, signal generator output wires, data acquisition input wires  
Internal Wiring for Audio Equipment: Amplifier input/output wires, mixer signal wires, recording equipment connection wires  
Sensor Wiring for Medical Equipment: Sensor wires for life monitoring equipment, signal wires for medical imaging devices  
Single-Point Signals for Industrial Control Equipment: PLC analog input wires, temperature sensor shielded wires, pressure transmitter connection wires  
RF Auxiliary for Communication Equipment: Base station antenna calibration wires, RF module test connection wires  
Compliance Certifications: UL

Conductor: Tinned annealed copper, fine-stranded structure.  
Key Wire Pairs: One twisted pair for USB 2.0 (D+/D-), two shielded twisted pairs for USB 3.0 (SSTX+/-, SSRX+/-), along with power and ground wires.  
Insulation Material: High-density polyethylene or foamed polyethylene, used to achieve 90Ω differential impedance.  
Wire Pair Structure: Four differential pairs: 
1. USB 2.0 differential pair: Unshielded or lightly shielded.  
2. USB 3.0 SuperSpeed TX differential pair: Independently shielded.  
3. USB 3.0 SuperSpeed RX differential pair: Independently shielded.  
4. Power wire pair: VBUS and GND, typically thicker.  
Layered Shielding: Multi-layer shielding structure:  
• Each SuperSpeed differential pair has independent aluminum foil shielding.  
• The overall structure uses braided copper mesh shielding (typically ≥65% coverage).  
Sheath:Polyvinyl chloride (PVC) or flame-retardant polyolefin, with strict outer diameter limits to ensure compatibility with standard USB-A/B plugs.  
Characteristic Impedance: Differential impedance: 90Ω ±15% (for SuperSpeed pairs), which is critical for ensuring 5 Gbps high-speed signal integrity.  
Rated Voltage:30V DC (VBUS power wire).  
Long-term Operating Temperature:60°C to 80°C (common).  
Data Transfer Rate: USB 3.0: 5 Gbps (SuperSpeed); USB 2.0: 480 Mbps (High-Speed), backward compatible.  
Maximum Length: Recommended ≤3 meters (typical length to guarantee performance under USB 3.0 specifications).  
DC Resistance: Strict requirements for VBUS and GND conductors to ensure sufficient power delivery capability (e.g., 900mA @ 5V).