Explore our high-performance printed circuit board assembly solutions manufactured to international standards.
Shenzhen STHL is a high-quality provider of electronics manufacturing services (EMS) in China. We serve customers worldwide along the whole industry chain including PCB layout, components sourcing, PCB fabrication, PCBA assembly, cable assembly, box build assembly and comprehensive testing services.
It was established in 2006, with 20 years of experience in electronics contract assembly manufacturing. Currently, STHL has 220+ staff members. Our 10,000 sqm facilities include 7 SMT assembly lines, 2 DIP/THT lines, 2 function testing lines and 2 finished device assembly lines.
At STHL, we provide electronics assembly services for energy power, communications, automotive, medical, consumer electronics, computers & storage, safety & security, commercial and industrial products. Our customers mainly from USA, Germany, Italy, UK, Poland, New Zealand, Argentina, Brazil, Turkey, Korea, Thailand, and the other 90 regions of the world.
As an IATF16949, ISO9001, ISO14001, and ISO13485 certificated electronics assembly manufacturer, we produce products exactly comply with RoHS standard and quality guarantee. Based on our excellent engineering and production capacities in technical areas such as materials analysis & storage, advanced equipment, reliability testing (AOI, X-RAY, ICT test and function test), high effective SMT and THT assembly, we are recognized as a long-term reliable PCBA vendor by more and more customers worldwide.
Welcome to visit STHL factory at any time.
We can handle a wide range of advanced components, including:
But our commitment to quality goes beyond component expertise. We utilize advanced inspection techniques, including Automated Optical Inspection (AOI) and X-Ray inspection, to guarantee flawless assembly.
STHL PCBA also excels in Through-Hole Technology (THT) assembly. Our services encompass:
How STHL optimizes electronic manufacturing logistics, automation, and component sourcing to withstand global challenges.
By using automated storage and retrieval systems (ASRS) and ERP-driven logistics software, STHL handles components with full traceability, reducing warehouse delays and eliminating component mixing risks.
We maintain active reserve agreements with major silicon distributors, securing silicon wafers and passive components ahead of market allocations, safeguarding your manufacturing timelines from volatile shortages.
Each PCB assembly processed at our facilities is serialized. We link Automated Optical Inspection, X-Ray imaging, and structural testing reports to unique bar codes to guarantee total manufacturing transparency.
Comprehensive turnkey manufacturing services, from quick-turn prototype fabrication to complex box build assemblies.
STHL operates 7 automated PCB assembly lines for both prototype and mass production. Advanced SMT ensures precise component placement and quality. Skilled technicians provide efficient THT assembly and RoHS-compliant lead-free soldering.
STHL PCB fabrication service produces high-quality, reliable printed circuit boards from simple singles to complex multi-layers, from flex PCB to rigid-flex PCB, we use premium materials and controlled processes to meet precise specifications.
STHL offer global electronic component sourcing and supply chain solutions. Our vast supplier network and expertise ensure access to genuine, certified parts, mitigating risks of counterfeits, allocation, and long lead times to secure your production schedule.
With the precision manufacturing of cable assembly components including handles, retention systems, connectors, and shielding in a wide range of materials and finishes, we have performed many successful cable assembly for many customers from various industrial applications.
Making your projects at STHL from SMT assembly to box build assembly is very cost-effective and fast to market. Covering everything from putting a PCBA into the enclosure with all functions testing to a complete product assembly packaged and ready for delivery to your customers, we can supply the full support.
STHL conducts functional testing (FCT) to verify product performance, preventing defects such as circuit issues, missing or incorrect components. This ensures delivered products are stable and fully qualified.
Engineered hardware systems designed to meet safety, reliability, and regulatory demands across specialized global domains.
Adhering strictly to ISO 13485 standards, we manufacture life-critical PCBAs including ECG monitors, patient trackers, and automation equipment. We utilize automated trace documentation to manage component risk parameters and ensure compliance.
Certified under IATF 16949, our electronic production handles active automotive safety modules (SRS), charging interfaces, and power converters. We subject critical boards to thermal cycling and high-vibration screening to guarantee functional safety.
Providing custom assemblies for photovoltaic system tracking, energy storage control units, and EV high-power chargers. Our engineering ensures correct creepage and clearance distances, high current tolerance, and stable field deployments.
At STHL, we bridge the communication gap between American and European engineering teams and Chinese factories. Our specialized technical account managers provide seamless customer service in English, handling initial Design for Manufacturing (DFM) reviews to catch layout errors before they reach production.
We strictly comply with environmental regulations including RoHS 3 (Directive 2011/65/EU and amendment 2015/863) and REACH directives. We maintain safety standards compliant with UL 796, giving our clients in the USA, Germany, Italy, and beyond total assurance when importing high-reliability equipment.
For custom enclosures and wire harnessing, our engineering department performs step-by-step inspections to ensure the final mechanical integration operates reliably. This minimizes cross-border return risks and optimizes final assembly efficiency.
| Standard | Domain Scope |
|---|---|
| IATF 16949 | Automotive Electronics Quality Management |
| ISO 13485 | Medical Device Assembly & Quality System |
| ISO 9001 | General Industrial Manufacturing & Operations |
| ISO 14001 | Environmental Standards & Waste Management |
Our commitment to investing in capabilities for the next generation of electronic hardware integration.
| Technology Focus | Current Capability | Roadmap Horizon (Next 18 Months) |
|---|---|---|
| HDI & Fine Pitch Arrays | 0.35mm pitch BGA placement, laser microvias, blind/buried via technology. | 0.25mm pitch component array handling, high-density interposers. |
| High-Frequency RF Assemblies | Rogers, Taconic, Nelco multi-layer hybrid PCB lamination and RF characterization. | Sub-6GHz and Millimeter Wave (mmWave) circuit testing integrations. |
| Thermal Management Solutions | Metal-core PCBs, thick copper boards, thermal via arrays, custom sink attachment. | Advanced vapor chamber integration, composite core substrate assemblies. |
| Embedded Passives & Silicon | Automated pick & place for ultra-miniature 01005 passives. | Embedded passive components in prepreg layers for miniature medical designs. |
Key information regarding logistics, engineering verification, material compliance, and production turnaround.
Before we launch any PCB assembly run, our engineers conduct a detailed Design for Manufacturing (DFM) check. We verify component footprint alignments, solder paste stencils, thermal clearance patterns, and multi-layer stackups. If we detect errors, we coordinate with the client to correct the files, preventing delays during assembly.
We use a combination of inline Automated Optical Inspection (AOI) to confirm correct placement, X-Ray inspection for BGA and hidden solder joint integrity, In-Circuit Testing (ICT) to check for component values, and custom functional testing (FCT) rigs to verify operation under simulated field conditions.
We buy electronic parts through authorized global distributors (like Arrow, DigiKey, and Mouser) and certified component manufacturers. For components with long lead times or obsolete status, we use verified brokers who perform full visual, chemical, and electrical testing to ensure authenticity before assembly.
We offer flexible shipping arrangements, including DAP, DDP, and FOB terms, utilizing major international express carriers (DHL, FedEx, UPS) and reliable freight forwarders. This ensures customs clearance and duties are handled smoothly for prompt delivery to your warehouse.
Explore our high-reliability control PCBAs designed for demanding industrial, renewable energy, and medical monitoring systems.
STHL PCBA
