Precision Engineering & Optimized 3535 Chip Layout

At Tonghang, we prioritize structural precision for high-speed automated SMT assembly lines. We manufacture the 223×49.5mm linear LED PCB board with strict geometric tolerances, ensuring seamless compatibility with standard linear lighting extrusions.

Moreover, we optimize the 24-LED layout specifically for the 3535 LED package. This precise arrangement creates a balanced optical pitch that actively eliminates dark spots and improves light consistency across the entire linear array. As a result, the PCB delivers more uniform illumination, higher lumen-per-watt efficiency, and enhanced overall lighting performance.

Advanced Thermal Management & Long-Term Stability

To satisfy industrial-grade E-E-A-T quality benchmarks, our boards are structured to withstand continuous, high-current commercial workloads:

• High-Conductivity Substrates: Available in premium Aluminum-core PCBs (MCPCB) with a high dielectric thermal conductivity rating to quickly pull heat away from the 3535 LED junctions.

• Solder Mask Excellence: Finished with high-reflectivity white solder masks that resist yellowing under intense UV and thermal stress, preserving high optical reflectivity over a 50,000-hour lifespan.

• Robust Circuit Topologies: Engineered with optimized trace widths and copper weights (1oz/2oz) to eliminate voltage drops and guarantee uniform brightness across daisy-chained modules.

Comprehensive Turnkey OEM/ODM Customization

As a specialized PCB fabrication and assembly (PCBA) supplier, Tonghang provides end-to-end customization to perfectly fit your product design ecosystem:

• Circuit & Component Tailoring: We can alter the series-parallel circuit configuration to match your specific LED driver voltage/current specifications, or swap chips to customized CCT/CRI requirements.

• On-Board Connector Integration: Options to add push-in terminal blocks (such as WAGO or Poke-In connectors) for rapid, tool-less wiring during final fixture assembly.

• Prototyping to Mass Production: We accept custom Gerber files and BOM sheets, offering rapid SMT prototyping and scalable high-volume production under strict automated optical inspection (AOI).