Welcome to KEEP BEST
One-Stop PCBA Manufacturer with
14 SMT Lines
ISO13485 / IATF16949 Certified ｜ EMS & OEM ｜ Quick-turn PCBA from China & Thailand
About Us
One - stop Printed circuit board assembly Solution provider Keep Best PCB Assembly Co., Ltd serves many well-known brand customers in industrial control, security, medical, Internet of Things, automotive, artificial intelligence, smart home, power and communications industries at home and abroad. The company continues to be customer-centric, improves the level of digital intelligence, and is committed to meeting continued high-quality customer needs.
Get a free quote
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00
+Years of experience
Who we are
We provide the best
electronics manufacturing services
Keep BestPCBA is a one-stop EMS solution service provider who integrates PCB Layout, PCB manufacturing, PCBA solution and product design, component procurement, SMT, DIP, finished product assembly and testing, having over 13 years of experience in serving many domestic and foreign brand customers in a wide range of fields such as Medical.We have a 50-person R&D engineer team and a workforce of 600 employees, with production bases in Thailand, Shenzhen (China), and Jiangmen (China), totaling over 6,0000 square meters of manufacturing space.
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Advanced Process Expertise & Rigorous Quality Control
Specialized in high-precision manufacturing (≤50μm line width, 0.25mm micro-pitch welding), complex processes (mixed assembly/underfill/20+ layer boards). Certified to IATF 16949/ISO 13485, with Cpk≥1.33 for critical processes. Full traceability via MES + 8D reports. Equipped with X-Ray/3D AOI and ≥95% ICT/FCT testing; provides ORT reliability reports.
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Agile Supply Chain & Global Compliance
Fast turnaround: ≤7-day prototypes, ≤20-day small batches; 72-hour emergency prototyping. Integrated with Digi-Key/Mouser, offering Second Source solutions, VMI, and 600+ long-lead components (Lead Time＞26 weeks). Full compliance: CE/FCC/RoHS, COO, MSDS, ITAR, and ESG standards. DHL delivery within 48 hours globally.
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[KEEP BEST] delivers one-stop PCBA services covering prototyping to mass production. As a vertically integrated OEM/ODM
it uses 16 SMT lines for 5-day prototyping and high-volume manufacturing. Services include Valor-based DFM, component sourcing, assembly, system integration, and enclosure/wire harness fabrication. ISO-certified QC with AOI/XRF/FCT ensures quality. Flexible OEM/ODM models, IP protection, branding, and regulatory support via global supply chain accelerate IoT product launch.
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Plant area
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+Countries & Regions
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+Total number of employees
PCB Manufacturing Quality Certification
PCB Manufacturing Quality Certification
Service
Service
One-Stop PCB Assembly Services
One-Stop PCB Assembly Services
Design Services
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Full-Cycle PCB Design Expertise
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Prototype-to-Mass Production Support
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Post-Production Technical Support
DFMA Services
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Integrated Cost-Efficiency Design.
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Automation-Optimized Assembly
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Reliability-Driven Manufacturing.
Manufacturing Services
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Fast Turnkey PCB Solutions
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Prototype-Driven Design Perfection
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Flexible Volume Manufacturing
Assembly Services
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Ultra-Fast Delivery Assurance
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Flexible Turnkey Assembly Options
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Scalable Craftsmanship Expertise
Components Purchasing
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Cost-Efficient Rapid Sourcing
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Reliable Authorized Supply Chains
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Customized Procurement Flexibility
Assembly Test
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Comprehensive Defect Detection
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Engineer-Certified Protocols
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End-Stage Quality Assurance
Zero defects
We are committed to providing you with zero-defect products.
Trustworthy
In the pursuit of quality, we are always worthy of your trust.
after-sales support
No physical objects, no photos, no reason to return or exchange.
Applications
Applications
Applications PCB Assembly Manufactured
Applications PCB Assembly Manufactured
Partners
Partners
Over 800,0 businesses and innovators trust KeepBestPCBA
Over 800,0 businesses and innovators trust KeepBestPCBA
Customer success stories
Thick copper PCB
Thick copper PCB
High Density Interconnect PCB
High Density Interconnect PCB
High Density Interconnect PCB
Multilayer PCBs
Medical device PCBA
Medical device PCBA
Consumer Electronics PCB Assembly
Industrial Control PCBA
Industrial Control PCBA
Medical device PCBA
Working Process
How to proceed with cooperation?
01
Inquiry & Quotation
RFQ (Request for Quotation).
Technical Review
BOM (Bill of Materials).
Review Cost Estimation
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Order Placement
PO (Purchase Order) Confirmation. Contract Signing. Payment Terms. Lead Time Agreement
03
Production Preparation
Gerber File Review Component Sourcing PCB Fabrication Surface Mount Technology
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Assembly & Testing
SMT Assembly. DIP (Dual In-line Package) Insertion. Automated Optical Inspection. Functional Testing
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Quality Control & Delivery
Final Inspection. Packaging. Logistics Arrangement. Shipment
Frequently Asked Questions
Frequently Asked Have
Any Question?
How do you order components for Turn-Key PCB orders?
We help businesses bring ideas to life in the digital world designing & implementing the technology tools that they need to win. We help business bring ideas to life in the digital wor
What is the lead time on a turn-key order?
The overall project Lead Time is the sum Parts Procurement lead time and PCB Assembly lead time. However, we try to shorten the time line by streamlining our PCB Assembly Process. For instance, once we receive your Gerber Files for PCB Fabrication and BOM for PCB Assembly, we will start to prepare the stencil for your board and complete the fabrication concurrently with the parts procurement process.
Is there a minimum order size for turn-key PCB orders?
No. We have no restrictions on your order size; however, larger orders are more cost effective. If you discuss your target price with your KeepBestPcba account manager, we can work with you to find a good solution for your specific needs in cost reduction.
What do I need to send for a turn-key PCB order?
Bill of Materials, complete information in excel format. This document should include manufacturer names, part numbers, Reference Designators, component descriptions, and quantities. Gerber Files Centroid Data (AKA Pick and Place or XY-Coordinate Data) Other requirements or assembly instructions if applicable
Are my PCB Design Files safe when submitting them to you for manufacturing?
We respect customer's copyright and will never manufacture PCBs for someone else with your design files unless we receive written permission from you, nor we'll share these files with any other 3rd parties. At your request, we can sign an NDA for extra security.
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One-Stop PCBA: Design to Delivery
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One-Stop PCBA Solution
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Proto to Mass Prod
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Turnkey OEM/ODM
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5-Day Prototype Fast
Factory in Rayong, Thailand
Factory exterior
exhibition hall
exhibition hall
exhibition hall
exhibition hall
receptionist
Conference Room
SMT production line
SMT Department
SMT Department
SMT Department
DIP assembly line
DIP assembly line
DIP assembly line
High-Speed Mounter
Intelligent Solder Paste Storage Cabinet
Temporary Material Storage Area
AOI Inspection Equipment
Solder Paste Inspection
Nitrogen-controlled wave soldering
Nitrogen reflow soldering oven
Latest Blogs
Latest Blogs & News
How PCBA Enterprises Can Break Through with "Zero Tariff" via Thai Factories Amid the China-US Trade War?
In recent years, the China-US trade war has cast a long shadow over the global trade landscape, and the PCBA (Printed Circuit Board Assembly) industry has not b...
