- Industrial control PCB Assembly
- Computer PCB Assembly
- Automotive PCB Assembly
- Medical PCB Assembly
- Consumer Electronics PCB Assembly
- Energy PCB Assembly
- Power Supply PCB Assembly
- Safety & Security PCB Assembly
- Communication PCB Assembly
- Smart Home PCB Assembly
- Aerospace PCB Assembly
- LED PCB Assembly
Online Water Quality Analyzer PCB Assembly
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Superior Signal IntegrityAdvanced impedance-controlled routing and ultra-low-noise PCB substrates minimize signal attenuation during the capture and amplification of weak water quality sensor signals. Equipped with high-resolution (≥16-bit) ADC integration and precision signal conditioning circuits, they ensure the accuracy of water quality parameter data, laying the foundation for precise water quality assessment, pollution early warning, and compliance monitoring.
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Versatile Form Factor AdaptabilityCompliant with IEC 60529 and ISO 17294 water quality monitoring standards, the assemblies adopt reinforced isolation designs (such as opto-isolation and galvanic isolation) to prevent electrical leakage and signal cross-interference risks. Corrosion-resistant, acid-alkali-resistant materials used in PCB substrates and conformal coatings support flexible adaptation to diverse monitoring scenarios, including municipal water supply, industrial wastewater, and environmental water quality monitoring, meeting varied sensitivity and detection range requirements.
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Reliable Long-Term OperationENIG (Electroless Nickel Immersion Gold) surface finishes and waterproof, anti-corrosion conformal coatings (IP68 rating) provide excellent corrosion resistance, moisture protection, and tolerance to chemical erosion. Combined with rigorous temperature cycling (-40°C to 85°C), vibration, and water exposure testing, the assemblies maintain stable performance in harsh wet environments (water treatment plants, industrial discharge outlets, and natural water bodies) and during long-term continuous online monitoring.
Key Applications Across Environmental & Industrial Sectors
Key Applications Across Environmental & Industrial Sectors
Key Applications Across Environmental & Industrial Sectors
Municipal Water Treatment Plants
Industrial Wastewater Discharge Monitoring
Environmental Water Quality Surveillance
Drinking Water Supply & Food Processing
Why STHL PCBA should be your top choice for your LED PCBA needs?
Let's explore the top 10 reasons why!
Real Factory
STHL PCBA is a real factory with 10,000+m² highly automated, dust-free factory，7 SMT lines, 2 DIP lines, 2 FCT lines, and 2 box building assembly lines.
Quality Guarantee
We buy components from famous international platform like Mouser, Digikey, Farnell, Future, Avnet, Arrow or the agents. No components substitutes without customers approval!
Rich Experience
20+ years of experience in PCB & PCBA field.
Cost Dowm
Professional engineering team supports cost down.
Global Sourcing
500k parts with 100+ agents and suppliers.
No MOQ
No minimum order requests, we accept both prototype and volume quantity orders.
Fully Certified
With IATF16949, ISO9001, ISO14001, ISO13485 Certifications.
NDA
We ensure all of your projects documents security and sign NDA before RFQ.
Intelligent Management
Use Intelligent ERP system, MES (manufacturing execution system) for fast tracking.
Fast Delivery
Prototype orders will be fast completed and delivered, mass orders lead time is 4~5 weeks.
About STHL PCB & PCBA
Shenzhen STHL Technology Co., Ltd. is a high-quality provider of electronics manufacturing services (EMS) in China, we serve customers worldwide along the whole industry chain including product design, material sourcing, PCBA production, cable assembly, box build assembly and comprehensive testing services.
Established in 2006, we have more than 20 years of experience in electronics contract assembly manufacturing. Currently, we employ more than 220 staff members. Our 10,000 sqm facilities include 7 surface-mount technology (SMT) production lines, 2 through hole technology (THT) lines , 2 function testing lines and 2 box build production lines.
At STHL, we provide electronics assembly services for energy power, communications, consumer electronics, computers & storage, safety & security, commercial and industrial products. Customers mainly from United States, Brazil, United Kingdom, Germany, Spain, Italy, Poland and . 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 wordlwide.
Products Capability
Items |
PCB capacity |
PCB name |
LED PCB Assembly: Revolutionizing Lighting Technology with Precision and Performance |
Material |
FR-4; High TG FR-4; Aluminum; CEM-1; CEM-3; Rogers, etc |
PCB type |
Rigid, flexible, rigid-flexible |
Layer NO. |
1, 2, 4, 6, up to 24 layer |
Shape |
Rectangular, round, slots, cutouts, complex, irregular |
Max PCB dimensions |
1200mm*600mm |
Board Thickness |
0.2mm-4mm |
Thickness Tolerance |
±10% |
Min Hole Size |
0.1mm (4 mil) |
Copper Thickness |
0.5 OZ-3OZ (18 um-385 um) |
Copper Plating hole |
18um-30um |
Min Trace Width |
0.075mm (3mil) |
Min Space Width |
0.1mm (4 mil) |
Surface finish |
HASL, LF HASL, Imm Gold, Imm Silver, OSP etc |
Solder mask |
Green, red, white, yellow, blue, black, orange, purple |
Assembly details |
SMT and Thru-hole, ISO SMT and DIP lines |
Testing on products |
Testing jig/mold , X-ray Inspection, AOI Test, Functional test |
Quantity |
Min quantity : 1pcs. Prototype, small order, mass order, all OK |
Products Capability
Files needed |
PCB : Gerber files(CAM, PCB, PCBDOC) |
Components : Bill of Materials(BOM list) | |
Assembly : Pick-N-Place file | |
PCB Panel Size |
Min size : 0.25*0.25 inches(6*6mm) |
Max size : 1200*600mm | |
Components details |
Passive Down to 0201 size |
BGA and VFBGA | |
Leadless Chip Carriers/CSP | |
Double-sided SMT Assembly | |
Fine BGA Pitch to 0.2mm(8mil) | |
BGA Repair and Reball | |
Part Removal and Replacement | |
Component package |
Cut Tape, Tube, Reels, Loose Parts |
PCB+ assembly process |
Drilling---Exposure---Plating---Etaching & Stripping---Punching---Electrical Testing---SMT---Wave |
Soldering---Assembling---ICT---Function Testing---Temperature & Humidity |
Digital Innovation
Digital Innovation
Digital Innovation
Digital Innovation
Digital Innovation
Digital Innovation
How to Get Started with STHL
Ready to partner with us for your LED PCB Assembly project? Here’s how you can get started
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Contact Us
Reach out to our sales team via phone, email, or online chat to discuss your project requirements. -
Provide Design Files
Send us your PCB design files (Gerber, BOM, etc.) for a detailed quote. -
Get a Quote
We will provide you with a comprehensive quote, outlining all costs and timelines. -
Production and Delivery
Once the quote is approved, our team will begin production, ensuring your PCB assembly is completed on time and to the highest quality standards.
Make an free consultant
Whether you need PCB Fabrication or PCBA Assembly Service, STHL delivers innovation and reliability.