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Black Oil OSP 4 Layer PCB Printed Circuit Board For Medical Equipment

    Buy cheap Black Oil OSP 4 Layer PCB Printed Circuit Board For Medical Equipment from wholesalers
     
    Buy cheap Black Oil OSP 4 Layer PCB Printed Circuit Board For Medical Equipment from wholesalers
    • Buy cheap Black Oil OSP 4 Layer PCB Printed Circuit Board For Medical Equipment from wholesalers

    Black Oil OSP 4 Layer PCB Printed Circuit Board For Medical Equipment

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    Brand Name : xingqiang
    Model Number : Varies by goods condition
    Certification : ROHS, CE
    Price : NA
    Payment Terms : ,T/T,Western Union
    Supply Ability : 3000
    Delivery Time : 7-10 work days
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    Black Oil OSP 4 Layer PCB Printed Circuit Board For Medical Equipment

    Black oil OSP 4-layer board PCB


    Product Description
    Black oil OSP 4-layer board PCB is a 4-layer printed circuit board that combines black solder mask, OSP (Organic Solderability Preservative) surface treatment, and a multi-layer wiring structure. The substrate (typically FR-4) consists of four conductive layers, interconnected by plated through-holes to enable complex signal transmission. The board is coated with black ink as the solder mask, providing insulation, circuit protection, and excellent light-shielding properties. Exposed copper pads on all layers undergo OSP treatment, forming a thin organic protective film through chemical reactions to prevent copper oxidation while maintaining solderability. This PCB is suitable for medium-complexity circuits, adapting to the welding needs of precision components like SMT and fine-pitch parts in general operating environments.
    Core Characteristics
    • 4-layer structure + black oil solder mask + OSP treatment: The 4-layer design offers ample wiring space for medium-complexity circuits; the black ink provides stable insulation, strong light-shielding, and a professional appearance; the ultra-thin (0.1-0.3μm) OSP film ensures oxidation resistance and reliable solderability on copper surfaces.
    • Interconnected layers: Plated through-holes enable electrical continuity between the four layers, supporting complex signal routing and power distribution.
    • Process compatibility: The integration of 4-layer lamination, black oil solder mask, and OSP treatment is stable, with good material compatibility, fitting into standard production workflows.
    Main Advantages
    • Enhanced wiring capacity: The 4-layer structure allows separate power, ground, and signal layers, reducing crosstalk and improving signal integrity, suitable for medium-complexity circuits in communication devices and industrial control systems.
    • Reliable solderability: The OSP film is easily removed during soldering, ensuring good solder wetting on copper surfaces, minimizing cold solder joints, and adapting to precision components like QFP and BGA.
    • Superior light-shielding and protection: The black solder mask effectively blocks light interference in sensitive circuits and isolates the board from external environments, boosting corrosion and abrasion resistance.
    • Cost-effectiveness: Compared to higher-layer boards, the 4-layer design balances performance and cost; combined with low-cost OSP and economical black ink, it offers controllable production expenses, suitable for cost-sensitive mid-complexity applications.
    • Environmental friendliness: The OSP process uses non-toxic organic compounds, and the black ink is generally eco-friendly, complying with environmental regulations and reducing hazardous waste.
    • Dimensional precision: The thin OSP layer and black ink do not significantly affect the board’s thickness or flatness, maintaining precision for high-density 4-layer circuit designs.
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