PCB Assembly Manufacturing | Professional PCB & Assembly Services

About Us

Your One Stop Service Provider for PCB Assembly and Box Build Assembly.

Shenzhen Suntop Electronics Co., Ltd is a professional PCB Assembly Service provider based in China, established in 2010. With over 15 years of profound industry experience, we specialize in PCB (Printed Circuit Board) supply, electronic components sourcing and procurement, PCB Assembly, and box building solutions.

We serve domestic and international industries spanning Precision Instruments, Automotive Electronics, Medical Devices, Power & Telecommunications, Industrial Automation, New Energy, Security Equipment, Smart Home, Power Systems, and Robotics—Tailored PCB Assembly + product box build assembly—crafted for your sector's unique needs.

Backed by a team of more than 200 dedicated professionals, we adhere to stringent quality and environmental management standards. Certified with ISO 9001, ISO 14001, UL, and RoHS, ensuring that all products and services meet international industry benchmarks. Committed to delivering reliable, cost-effective, and tailored electronic manufacturing solutions, we strive to be a trusted partner for clients worldwide.

Learn More About Us

PCB Assembly Manufacturing Facility - State-of-the-art production floor

Why Us

What Makes Us the Right Fit for Your PCB Assembly & Box Build Assembly Needs

NO MOQ

Prototype, small to medium, mass production, any quantities are available to meet different project needs.

Price

Factory directed price help you save cost. Professional suggest for alternatives to make a cost breakdown for components.

Lead Time

98.5% on time delivery. In case of any delay, you'll be informed in advance to adjust your production schedule.

Quality

PCB: 100% E-testing with IPC Class 2

Components:

· 100% original as per BOM, will confirm if any difference.

· Alternative suggestions, confirm with you.

SMD/THT/BGA Assembly:

· First sample will be confirmed with you

ISO 9001, ISO 14001, ISO 13485, UL.

Professional Engineering

PCB: EQ and Working Gerber will be confirmed with customer before proceed production.

Component:

· If any questions for BOM, will mark and send to customer for confirmation.

· Any alternative suggestions to help save cost/lead time, will confirm with customer. We'll NEVER change anything without customer's confirmation.

Others

Privacy: NDA can be singed before any file sent

Packing:

PCB: vacuum packing

PCBA: bubble bag or customized packing

Finish Product: Customized packing

Shipping: DHL/Fedex/UPS/TNT/EMS by air with good discount

After-Sale: Follow Up feedback, if any questions, we'll disccuss and find the best solution.

All the questions during the whole process will be provided with photoes or videos to confirm.

Industries We Serve

Tailored PCB Assembly + product box build assembly—crafted for your sector's unique needs.

Precision Instruments

Automotive Electronics

Medical Devices

Power & Telecommunications

Industrial Automation

New Energy

Security Equipment

Smart Home

Power Systems

Robotics

Our Capabilities

Capabilities That Deliver: PCB Assembly & Box Build Assembly Solutions

PCB Manufacturing Capability

Product Type	Rigid, FPC, Rigid-Flex PCB, Single Layer, Double-sided PCB, Multilayer PCB (HDI PCB), Aluminum base PCB, High Frequency PCB
Surface Treatment Processes	ENIG, OSP, HASL LF, Immersion Silver, Immersion Tin, Carbon Ink, Peelable Adhesive, Gold Fingers
Board Materials	FR-4, Polymide, Aluminum Base, High-TG	Finished Hole Diameter Tolerance	PTH: ± 0.08mm; NPTH: ± 0.05mm
Number of Layers	1 - 30 Layers	Hole Position Tolerance	± 0.08mm
Finished Board Thickness	0.1mm - 4.3mm	Min Soldermask Bridge	± 0.08mm
Min Line Width / Line Spacing	0.05mm / 0.05mm	Min Soldermask Window	± 0.05mm
Maximum Size	630*1200mm	Copper Thickness in Hole	≥20um
Copper Thickness	18 - 210um	Immersion Gold Thickness	Ni: 2.54 - 5um / Au: 0.05 - 0.15um
Min Hole Diameter	Φ0.15mm	OSP Thickness	0.2 - 0.5um
Depth - to - Diameter Ratio	12:01	Immersion Tin Thickness	0.8 - 1.2um
Contour Machining Precision	±0.05mm	Immersion Silver Thickness	0.15 - 0.30um

PCB Assembly Capability

PCB Size	L810mmW490mm - L50mmW50mm
PCB Thickness	0.1mm - 4.0mm
Substrate Material	Rigid PCB, FPC, Rigid-Flex, Aluminum PCB
Min Component Size	01005 (Imperial)
Min Component Spacing	0.25mm (QFP/QFN/BGA)
Component Height	Max 15mm
Printing Alignment Accuracy	±0.015mm
Mounting Accuracy	±0.035mm
Actual Production Capacity	7 - 8 M Points per Day

Ready to Start Your Project?

Get a custom quote for your PCB manufacturing and assembly needs. No MOQ, prototype and mass production are all welcome!

Get a Quote

Certifications & Quality Standards

Our commitment to excellence is backed by industry-leading certifications and quality standards.

Quality

ISO 9001:2015

Quality Management System certification ensuring consistent quality standards.

Environment

ISO 14001:2015

Environmental Management System certification for sustainable manufacturing.

Safety

UL Recognition

Underwriters Laboratories certification for safety and reliability standards.

Compliance

RoHS Compliance

Restriction of Hazardous Substances compliance for environmental protection.

Frequently Asked Questions

Find answers to common questions about our services and processes

FAQ

Have other questions?

Our professional team is ready to answer any technical or service-related questions