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FR4 Green Soldermask Automotive PCB Double Sided Multilayer Circuit Board

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FR4 Green Soldermask Automotive PCB Double Sided Multilayer Circuit Board

Name: FR4 Green Soldermask Automotive PCB Double Sided Multilayer Circuit Board
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

Size : 71mm*138mm

Solder Mask : Green/Red/Black/Blue/White

Flame Resistance : UL 94V0

Product : PCB

Surface : ENIG/HASL/OSP

Lead Time : 4 Working Days

Pcba : Support

Max Board Size : 528 mm x 600 mm

Material : FR-4

Copper : 1oz

Key Word : Heavy Copper PCB

Copper Thickness : 2OZ

Standard : IPC Class2

Pcb Type : FR4 Multilayer PCB

Copper Weight : 1-3oz

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FR4 Green Soldermask HASL Material SMT Multilayer PCB Board

FR4 Green Soldermask HASL Material SMT Multilayer PCB Board is a multilayer printed circuit board (Multilayer PCB) engineered for Surface Mount Technology (SMT) assembly, with its core substrate made of FR4—a glass-reinforced epoxy laminate, one of the most widely used materials in the electronics industry. Its manufacturing process involves laminating multiple FR4 layers (each with pre-defined internal circuits) to form a robust multilayer structure. The outer layers are coated with green solder mask ink to insulate non-solder areas, while exposed copper pads undergo HASL (Hot Air Solder Leveling)—a process that applies a uniform layer of solder (typically tin-lead or lead-free alloys) to ensure reliable soldering. This board combines the mechanical stability of FR4, the protective properties of green solder mask, and the solderability of HASL, making it a versatile choice for a broad range of electronic devices.​​

Material and Structural Features​

FR4 substrate excellence: The FR4 core provides high mechanical strength, good dimensional stability, and excellent electrical insulation (dielectric constant around 4.2-4.7), ensuring the board withstands thermal stress during SMT assembly and long-term operation. Its glass fiber reinforcement resists warping, even in environments with temperature fluctuations.​

Multilayer design flexibility: With 4 or more layers, the board supports complex routing, allowing for separate power and ground planes. This structure reduces signal interference and enables high component density, critical for compact electronic devices.​

Surface and Solderability Features​

Uniform green solder mask: The green solder mask creates a consistent, high-contrast surface that simplifies visual inspection during SMT, aiding in the detection of defects like misaligned components or solder bridges. It also protects the underlying copper traces from moisture, dust, and mechanical damage.​

HASL-enhanced solderability: HASL forms a solderable coating on copper pads, ensuring strong adhesion during SMT soldering. The hot air leveling process results in a flat, uniform surface, compatible with both leaded and lead-free solders (e.g., tin-silver-copper alloys), meeting diverse industry standards.​​

Cost and Application Adaptability​

Cost-effectiveness: FR4 is an economical substrate, and green solder mask is a standard, low-cost material. HASL is more affordable than precious metal surface treatments (e.g., gold plating), making the board ideal for mass-produced electronics where budget is a consideration.​

Broad application range: Perfect for consumer electronics (smartphones, laptops, home appliances), industrial control systems (motors, controllers), and automotive electronics (dashboard modules, lighting systems). Its compatibility with SMT and ability to support dense components make it a go-to choice for high-volume, mid-complexity devices.​

Product Tags:

FR4 Green Soldermask Automotive PCB

FR4 Automotive Multilayer Circuit Board

FR4 Green Soldermask Automotive PCB Double Sided Multilayer Circuit Board Images

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