UL3321 Economical high density UL-Certified Cable

UL3321 Advantages  
Ultra-Fine and Ultra-Soft Design: Ultra-fine conductor stranding, suitable for extremely high-density precision wiring  
Stable Electrical Performance: Uniform insulation, reliable voltage resistance, suitable for micro signal transmission  
Rich Color Identification: Provides standard color coding, supports complex circuit identification  
Compliant with U.S. Standard High-Density Wiring: Passes UL certification, meets U.S. internal high-density wiring requirements for electronic devices  
Excellent Cost Control: Good value for money among ultra-fine electronic wires  

UL3321 Selling Points  
Specialized Wire for High-Density Wiring in North America: Widely used for internal wiring in micro sensors and wearable devices in the U.S. and Canadian markets  
UL-Certified Ultra-Fine Soft Wire: Complies with UL 758 standard, supports rapid product certification for North American micro devices  
Plug-and-Play Miniature Connections: Compatible with miniature connectors and flexible circuit board interfaces, requiring no special processing  
Economical High-Density Solution: Provides low-cost internal connections for microelectronic products exported to North America  
Flexible Specifications and Fast Response: Supports AWG 38–30 ultra-fine wire gauge customization, optional colors, and short lead times  

UL3321 Application Scope  
Wiring for Micro Sensors: Internal signal wires for MEMS sensors and biosensors in the U.S. and Canadian markets  
Internal Connections for Wearable Devices: Flexible circuit jumpers inside smartwatches and fitness trackers  
Connections for Micro Camera Modules: Fine signal wires inside mobile phone cameras and endoscope modules  
Internal Jumpers for Precision Instruments: Micro connections inside miniature test probes and high-precision instruments  
Repair and Replacement for Micro Devices in North America: Specialized ultra-fine wires for micro electronic device repairs in the U.S. and Canada  
Compliance Certifications: UL, ROHS

Conductor Material: Tinned copper or stranded bare copper (Class B/C)  
Conductor Specifications: Typically 30 AWG to 8 AWG (single-core or multi-core structure)  
Insulation Material: Silicone rubber (high temperature resistant, ageing resistant)  
Insulation Thickness: ≥0.76 mm (20 AWG)  
Outer Sheath Colour: Red, black, yellow, white, etc. (customizable)  
Chemical Resistance: Oil resistant, acid and alkali resistant (not suitable for strong oxidizers)  
Flexibility: Remains soft without cracking at -60°C  
Bending Radius:Static ≥ 4 × outer diameter, dynamic ≥ 6 × outer diameter  
Rated Voltage:600 V  
Temperature Range:  
- Continuous operating temperature: -60°C to +200°C  
- Short-term temperature resistance: +250°C (≤ 4 hours)  
Flame Retardant Rating: VW-1 (passes UL vertical flame test)  
Environmental Certification: RoHS