Home > Medical PCB >

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

Product Categories

Dongguan Xingqiang Circuit Board Technology Co., Ltd.

Trust Seal

Verified Supplier

Credit Check

Supplier Assessment

Contact Now

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

Name: Black Oil OSP 4 Layer PCB Printed Circuit Board For Medical Equipment
Brand: xingqiang
Price: 1 USD

Brand Name : xingqiang

Model Number : Varies by goods condition

Certification : ROHS, CE

Place of Origin : China

MOQ : Sample,1 pc(5 square meters)

Price : NA

Payment Terms : ,T/T,Western Union

Supply Ability : 3000

Delivery Time : 7-10 work days

Max. Panel Size : 528x600mm

Surface Finish : HASL, ENIG, OSP, Immersion Silver

Solder Mask Color : Green, Blue, Black, Red, Yellow, White

Min. Hole Size : 0.1mm

Silkscreen Color : White, Black, Yellow

Testing : 100% E-test

Copper Thickness : 1-3 oz

Application : Medical equipment

Min. Trace/Space : 0.1mm/0.1mm

Board Thickness : 0.2-5.0mm

Material : FR-4

Lead Time : 5-10 days

Layer Count : 2-8 layers

Contact Now

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.​

Product Tags:

Black Oil OSP 4 Layer PCB

Medical Equipment 4 Layer PCB

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

Inquiry Cart 0

Send your message to this supplier


*From:	Your email address is incorrect!
*To:	Dongguan Xingqiang Circuit Board Technology Co., Ltd.
*Subject:	Subject is empty!
*Message:	For the best results, we recommend including the following details: -Self introduction -Required specifications -Inquire about price/MOQ Characters Remaining: (0/3000) Please enter 20 to 3000 characters to contact this supplier!