This 4-layer FR4 PCB addresses the needs of industrial control applications requiring extensive component integration, reliable power management, and robust mechanical stability. Với kích thước của 350mm×125mm và một 1.5độ dày mm, the board provides a large surface area for mounting high-power devices, rơle, and connectors while maintaining rigidity for panel installations in control cabinets. Xây dựng từ vật liệu FR4, it offers stable electrical insulation (Hằng số điện môi εr = 4,5) and mechanical strength, suitable for operation in industrial environments with temperature fluctuations and vibration.

Kiến trúc lớp & Power Design

  • 4-Xếp chồng lớp:
    • 2 Lớp tín hiệu + 2 power/ground planes for efficient EMI suppression
    • Inner power planes optimized for 24V DC distribution in industrial control systems
  • 1Oz (35μm) Độ dày đồng:
    • Supports moderate current loads (up to 10A per trace) for motor drivers and solenoid valves
    • Copper pour areas on power layers reduce resistive heating

Industrial-Grade Features

  • Green LPI Solder Mask:
    • Standard industrial color for easy visual inspection
    • Chemical resistance against oils, coolants, and cleaning agents
  • Bề mặt hoàn thiện ENIG:
    • 3–5μm nickel layer prevents corrosion in harsh environments
    • 0.05–0.1μm gold layer ensures reliable solder joints for field-replaceable components
  • Mixed SMT+DIP Capability:
    • SMT: High-density placement of microcontrollers and signal conditioning ICs
    • NHÚNG: Robust through-hole connectors (ví dụ., khối thiết bị đầu cuối, DB9 ports) for field wiring

Chế tạo & Kiểm soát chất lượng

  • Large-Format Fabrication:
    • Laser direct imaging (LDI) for 75μm line/space accuracy across the entire board
    • Electrolytic copper plating with uniform thickness verification
  • Rigorous Testing:
    • 100% AOI inspection for solder mask coverage and silkscreen clarity
    • Kiểm tra đầu dò bay để đảm bảo tính liên tục của điện (.10,1Ω) và sự cô lập (≥100MΩ)
    • Kiểm tra rung động (5–500Hz, 2G) to simulate industrial machine operation
  • Sự tuân thủ:
    • Lớp IPC-6012 2 for industrial electronics
    • RoHS/REACH compliant for hazardous substance restrictions

Ứng dụng công nghiệp

  • Bảng điều khiển PLC:
    Mounts programmable logic controllers, mô-đun I/O, and power supplies for factory automation.
  • Motor Drive Systems:
    Manages power distribution for variable frequency drives (VFDs) in conveyor systems.
  • Xây dựng tự động hóa:
    Integrates HVAC controllers, lighting panels, and security systems in commercial buildings.
  • Biến tần năng lượng tái tạo:
    Supports power conversion for solar or wind energy systems with robust thermal management.

 

By combining a large form factor, 4-layer power/signal separation, and mixed assembly capabilities, this PCB enables engineers to build comprehensive industrial control systems in a single board. The green solder mask and ENIG finish balance standardization with reliability, while the 350mm×125mm layout accommodates both high-power components and complex signal routing. Được hỗ trợ bởi ISO 9001:2015 chứng nhận, it delivers consistent performance for industrial applications where downtime and maintenance costs must be minimized.