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Construction & real estate›💡Electronic & Electrical›🍎Food & Beverages›🛋️Home furnishing & supplies›⚗️Industrial goods & chemical›🪨Minerals & metals›📦Miscellaneous›
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Construction & real estate›💡Electronic & Electrical›🍎Food & Beverages›🛋️Home furnishing & supplies›⚗️Industrial goods & chemical›🪨Minerals & metals›📦Miscellaneous›This double and multilayer FR4 PCB board is manufactured using standard FR-4 epoxy glass laminate with optional alternatives including FR-1, CEM-1, CEM-3, and aluminum core substrates. The boards support surface finishes such as HASL, immersion gold, Ni/Au, OSP, and immersion tin, with minimum trace width and spacing of 4mil and minimum drill diameter of 0.2mm.
The base material meets standard IPC-4101 specifications for FR-4, with high TG variants and halogen-free options available. Board thickness ranges from 0.6mm to 3.00mm, and maximum panel size is 560mm by 720mm. Solder mask colors include green, black, red, white, blue, and transparent, with silk screen legend in white, yellow, or black.
Buyers in consumer electronics, automotive control systems, and industrial instrumentation source these boards for high-density circuitry requiring reliable signal integrity. All boards undergo 100% electrical testing and high-voltage testing. Trade terms require direct confirmation of lead time, minimum order quantity, and RoHS compliance documentation.
| Base material | FR-4, FR-1, CEM-1, CEM-3, Aluminum Core |
| Surface finish options | HASL (lead-free), immersion gold, Ni/Au, OSP, immersion tin |
| Layer count | Single-sided, double-sided, multilayer up to 12 layers |
| Minimum trace width | 4mil (0.102mm) |
| Minimum trace spacing | 4mil (0.102mm) |
| Minimum drill diameter | 0.2mm |
| Max board size | 560mm x 720mm |
| Board thickness range | 0.6mm to 3.00mm |
| Solder mask color options | Green, yellow, black, red, white, blue, transparent |
| Typical dielectric constant (FR-4) | Standard εr of 4.4 to 4.8 at 1GHz, typical for general-purpose PCBs |
Shenzhen Welsun Electronic Co., Ltd. is a PCB manufacturer located in Fuyo, Shenzhen, with harbor-tier verification and imported-tier supplier classification. The listing does not disclose production capacity, years in business, or client names. Response rate and average response time are not available, indicating limited buyer communication on the platform.
The company processes standard and high-performance PCB materials including halogen-free FR-4 and Rogers substrates. No certifications such as ISO 9001, IATF 16949, or IPC-A-600 compliance are stated. Buyers must request test reports for electrical performance and RoHS compliance directly.
| 企业类型 | Supplier |
| 成立年份 | Contact Supplier |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| 响应时间 | <4h |
| 响应率 | Contact Supplier |
Before ordering, verify the exact material grade of the FR-4 substrate, including Tg value, CTE, and flammability rating. Request RoHS and REACH compliance certificates if exporting to regulated markets. Confirm that the supplier uses verified raw material suppliers for the laminate and copper foil.
Lead time, Incoterms, and MOQ are not stated. Confirm whether the supplier offers FOB Shenzhen or EXW, and request written lead time estimates based on layer count and finish. Payment terms are typically 30% deposit with balance before shipment. Ask for packaging details to prevent board warpage during transit.
Upon delivery, inspect for solder mask defects, copper exposure, and drill alignment. Request a copy of the electrical test report and a sample of the final finish for microscopic inspection. Retain a board from each batch for future failure analysis. Confirm the supplier provides a lot traceability number on each shipment.
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Securing a reliable supply chain for Double And Multilayer Fr4 Pcb Board is critical for maintaining your business operations. Shenzhen Welsun Electronic Co., Ltd., a verified supplier located in China, provides high-quality Double And Multilayer Fr4 ready for international export. By connecting directly with this supplier, buyers can bypass intermediaries, negotiate custom wholesale pricing, and arrange bulk shipments. This product is a key offering within the Products industry, catering to distributors, wholesalers, and importers worldwide.
Navigating the complexities of global sourcing is easier when you have direct access to the right manufacturers and exporters. When importing Double And Multilayer Fr4 from China, buyers can discuss shipping logistics, packaging requirements, and preferred payment terms directly with Shenzhen Welsun Electronic Co., Ltd.. This seamless communication is powered by EximNext, a premier global B2B marketplace that connects ambitious buyers with verified global sellers across every major industry.
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When importing Double And Multilayer Fr4 from China, buyers should consider shipping terms (FOB, CIF, EXW), customs documentation requirements, and payment security. Contact the supplier to discuss the best logistics options for your destination country.
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Yes, Shenzhen Welsun Electronic Co., Ltd. provides Double And Multilayer Fr4 for bulk export from China. You can negotiate the MOQ, packaging details, and shipping terms directly with the supplier.
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