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HASL Lead Free Rigid Flex PCB 4 Layer Blank Printed Circuit Board For Electronic Systems

Categories Rigid Flex PCB
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: 15-16 work days
Min. Solder Mask Clearance: 0.1mm
Pcba Standard: IPC-A-610E
Aspect Ratio: 20:1
Board Thinkness: 1.2mm
Minimum Line Space: 3mil (0.075mm)
Surface Finishing: HASL/OSP/ENIG
Materila: FR4
Product: Print Circuit Board
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HASL Lead Free Rigid Flex PCB 4 Layer Blank Printed Circuit Board For Electronic Systems

4-layer HASL rigid-flex PCB


1.Product Description:

The 4-layer lead-free HASL (Hot Air Solder Leveling) flex-rigid PCB merges structural adaptability with robust solder performance, engineered for reliable operation in demanding electronic systems.Constructed with a 4-layer configuration, it integrates rigid FR-4 substrates for mechanical robustness and flexible polyimide (PI) layers for superior bending capability, enabling seamless 3D integration in compact assemblies. Its standout feature is the lead-free HAL surface finish—a RoHS-compliant process that deposits a uniform tin-lead alloy (or tin-silver-copper for lead-free variants) via hot air leveling, ensuring excellent solderability, enhanced wear resistance, and strong adhesion to copper traces.



2.Product Features:

  • Rigidity and flexibility combined
  • Space saving
  • High-density wiring
  • Good seismic and anti-interference performance
  • Improve the reliability of the system
  • Design flexibility


3. Application Scenarios (Categorized by Industry to Help Buyers Match Needs Quickly)

Application FieldTypical Usage ScenariosCore Adaptation Advantages
Smart WearablesScreen-mainboard connection for smart watches/bracelets, internal wiring of earbud charging casesThin and light (total thickness down to 0.2mm), bend-resistant, space-saving
Industrial ControlRobot joint sensors, internal connection of PLC controllersVibration-resistant (vibration frequency: 10-2000Hz), high and low temperature resistant
Medical DevicesPortable ultrasound probes, blood glucose meter circuit boardsBiocompatibility (medical-grade PI), high-precision wiring
Automotive ElectronicsIn-vehicle cameras, millimeter-wave radar circuit boardsHumidity and heat resistant (85℃/85%RH for 1000h), electromagnetic interference resistant


4.FAQ about PCB 4-layer HASL rigid-flex PCB

1.What’s the minimum order quantity (MOQ)?
We accept MOQ 1 piece(5 square meters) for prototypes and small batches. Mass production MOQ depends on complexity.

2.What file formats do you need for quotation?
Please provide Gerber files, IPC-2581, or ODB++, along with BOM and assembly drawing if available.

3.What’s the lead time for mass production?
Typically 15–25 days, depending on layer count, testing requirements, and order volume.

4.Do you offer assembly (PCBA)?
Yes, we provide full turnkey PCBA services, including component sourcing, SMT and testing.

5.Are your products compliant with the quality production standards, and conflict minerals regulations?
Yes, all our materials are RoHS, CE,ISO compliant, and we follow conflict-free sourcing policies.


Quality HASL Lead Free Rigid Flex PCB 4 Layer Blank Printed Circuit Board For Electronic Systems for sale
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