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Shenzhen Lonstar Circuit Co., Ltd.
Shenzhen Lonstar Circuit Co., Ltd.
Ranking:
Supplier Assessment:
Country / Region:
China
Business Type:
Manufacturer, Exporter, Wholesaler
Years with Global Sources:
1 year
Export Markets:
North America, Mid East/Africa, Eastern Europe, Central/South America, Western Europe, Australasia, Asia
Main Products: Automotive PCBA Production, Printed Circuit Board manufacturing, Printed Circuit Board Assembly, Main PCBA supplier, Industrial Control PCBA, Security Electronics PCBA, Customized PCBA Service, PCBA design, Electronics board PCBA
1 year
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Company Profile
Company Overview
Over 15 Years of Reliable High-quality PCBA Manufacturing Experience
Professional PCBA production|11 SMT lines|15,000sqm factory
15+ Years of Experience in the PCBA Industry
Shenzhen Lonstar Circuit Co., Ltd. (abbreviated as Lonstar) was established in 2010 and has grown into one of the leading providers of printed circuit board assembly with strict high quality. Through over 15+ years of diligent development, our PCBA products are widely used in automotive electronics, industrial control, security systems, communication devices, medical equipment, and other fields. In order to better meet the needs of global customers, we focus on solving the problem of component procurement for our customers.
Serving Customers in Europe and America and the Middle East
Our customer base is primarily distributed across Europe, America, and the Middle East. Lonstar has garnered high recognition and built a solid reputation for its reliability and outstanding credit standing. We also provide professional one-stop solutions, supporting customers throughout the entire process from PCB fabrication and component sourcing to full assembly.
Our Advantages
- Quick response for inquiries within 24 hours
- 48-hour PCBA quotation time
- Strict high-quality control process with 19 QC steps
- Fast PCBA production lead time
Please contact with us for more information.
Basic Information
Total Capitalization
US$10,000,000 to 14,999,999
Year Established
2010
Total Employees
250 to 299
Company Certificate
NA
Product Certificate
NA
Business Type
Trading Capabilities
Total Annual Sales
US$10,000,000 to 14,999,999
Export Percentage
95 percent to 99 percent
OEM Service
Yes
Small Orders Accepted
Yes
Brand Names
NA
Payment Terms
TT/Paypal/Western Union
Main Competitive Advantages
Buyer's Specifications Accepted, Experienced R&D Department, Large Product Line, ODM (Original Designing & Manufacturing), OEM Capability, Production Capacity, Reliability, Reputation
Other Competitive Advantages
NA
Major Customer
Ideal Industries, Skoda, Audi, Auctor
Export Markets
Business Registration Details
Registered Company
深圳市隆信达电路有限公司
Registration Number
91440300MA5H017F1X
Company Registration Address
深圳市罗湖区南湖街道罗湖社区沿河南路1021号双城世纪B座2320
* In China, company names and addresses are registered in Chinese only.
Production Capacity
Factory Information
Factory Size
15000 Square Metre
No. of Production Lines
NA
Number of Production Staff
250 to 299
Number of QC Staff
30 to 39
Year Established
2008
Number of R & D Staff
10 to 19
Address
Building A, Languang High-tech Park, 6th St, High-Tech North Rd, Nanshan, Shenzhen, Guangdong, China
Other Production Capacity
Materials/Components Used
PCB materials: FR4, KB, ITEQ, Isola, Nanya
Component brands: TI, STM, MPS, Microchip, Bourns, Diode, NXP, ECS, ADI, Maxim, Taiyo, etc.
Machinery/Production Process
Yamaha YSM24
Yamaha YSM20R
Yamaha YSM10
Site Advantages
Shenzhen is a prefecture-level city, a sub-provincial city, and a national independent planning city in Guangdong Province. Located in the southern part of Guangdong Province, on the east bank of the Pearl River Estuary, it borders Daya Bay and Dapeng Bay to the east, the Pearl River Estuary and Lingding Bay to the west, and the Hong Kong Special Administrative Region to the south. As of the end of 2025, it covers a total area of 1,997.47 square kilometers, with a permanent resident population of 17.9895 million.
Quality Control
Other Quality Control
Description of Quality Control/Technical Support Department
The Quality Management & Technical Support Department is the core department responsible for product quality control, technical assurance, and service support within the company. It coordinates quality control and technical empowerment throughout the entire product lifecycle. It is tasked with maintaining the bottom line of product quality while also providing comprehensive technical support to production, sales, and customers, thereby helping the company enhance its core competitiveness and customer satisfaction.
Quality Control Procedures
We have 19 steps during PCBA manufacturing as follows:
DFM Analysis, Order Audit and Review, Components IPQC, 3D SPI Paste Inspection, First Piece QC, Automatic First Article Inspector, AOI, Visual Inspection, X-ray, QA, DIP Line 1 QC, DIP Line 2 QC, AQL Sampling Inspection, QC Inspection, FCT Inspection, QA Inspection, QQC Inspection, Three-Proofing Inspection, QA Inspection
Origin of Materials and Components
The components comply with RoHS and REACH requirements.
They are purchased from original factories and first-class agents.
Additional Information about the Quality Control Process
Following the core logic of pre-prevention, in-process control, post-improvement and continuous optimization, we supplement the process with detailed connection points and foreign trade scenario-specific requirements to ensure full-chain no omissions.
R&D Capabilities
Other R&D Capabilities
Machinery and Equipment Used
1.Manual small SMT machine
2.Constant temperature heating platform/hot air gun
3.Soldering station (constant temperature and anti-static)
4.Solder paste mixer
5.Stencil
6.Reflow soldering
7.BGA Repair Equipment
Location of Facilities
A Building, Languang High-tech Park, High-tech North Road 6th Street, Nanshan, 518057, Shenzhen.
Procedures and Practices
The complete R&D process, regardless of the size of the project, follows the principle of "virtual design first, physical verification second, and mass production finally", avoiding blind trial and error and reducing R&D costs. It specifically includes six major stages:
Requirements decomposition and solution definition (setting the direction)
Schematic design and simulation verification (circuit determination)
PCB layout design and review (carrier determination)
R&D prototype making and board mounting (making physical samples)
Full-dimensional test verification (qualified)
Mass production transformation
Business Registration Profile
by SGS
The supplier information below has been obtained from relevant government agencies in the supplier's country and is subject to change without prior notice. Business Registration Profile verification procedures were conducted by SGS, a third-party credit agency
Read DisclaimerRegistered Address
Room 2320, Block B, Shuangcheng Century, No.1021, Yanhe South Road, Luohu Community, Nanhu Street, Luohu District, Shenzhen City
Incorporation Date
2021/09/08
Legal Form
Limited liability company (sole proprietorship of natural person)
Company Status
Live
Registration Agency
Market Supervision Administration of Shenzhen Municipality
Registration No.
91440300MA5H017F1X
Authorized Capital
RMB1,000,000
Paid-Up Capital
NA
Import & Export License
Yes
Legal Representative
Liu Yixiang
Business Scope
Sales of electronic products; sales of machinery and equipment; manufacturing of electronic components; wholesale of electronic components; retail of electronic components; manufacturing of specialized electronic equipment; domestic trade agency; technical services, technology development, technical consulting, technical exchange, technology transfer, and technology promotion. (Except for items that require approval according to law, business activities can be carried out independently with a business license in accordance with the law.) Import and export of goods; import and export of technology. (Projects that require approval according to law can only be carried out with the approval of relevant departments. Specific business projects shall be subject to the approval documents or licenses of relevant departments.)
Business Permit Expiry
Shareholders
Liu Yixiang
Codes Of Conduct
Equal Employment Opportunity/Non-discrimination
Labor Law/Employment Promotion Law: Discrimination based on ethnicity, race, gender, and religious belief is prohibited; equal employment opportunities for women are guaranteed, and restrictions on marriage and childbearing are not allowed; discrimination against disabled persons, rural workers, and carriers of infectious disease pathogens (except for statutory prohibited positions) is prohibited; the entire process of recruitment, hiring, promotion, training, compensation, and dismissal applies.
Policy on Forced Labour
Forced labor refers to the involuntary labor of others coerced by violence, threats, or illegal restrictions on personal freedom. Chinese law explicitly prohibits such practices and stipulates civil, administrative, and criminal accountability.
Policy on Child Labour
Chinese law strictly prohibits the employment of minors (child laborers) under the age of 16. Exceptions are only made for units in the arts, sports, or specialized crafts, subject to strict approval and on the premise of ensuring compulsory education. Minors aged 16 to 18 are considered juvenile workers
Policy on Hours of Labour
China adopts standard working hours of 8 hours per day and 40 hours per week on average; overtime must be negotiated, generally less than 1 hour per day, and less than hours per day in special circumstances, with a monthly cap of less than 36 hours; statutory holidays must be taken off and paid with 300% overtime pay; comprehensive calculation of working hours/flexible working hours require approval from the human resources and social security department, and must not be applied without authorization.
Policy on Coercion and Harassment
Oppression and harassment are strictly prohibited by laws and regulations, and employers bear the statutory responsibility to prevent, stop, and handle such behaviors.
Policy on Compensation
Compensation clauses should distinguish between "statutory compensation" and "agreed compensation", with a focus on labor law/labor contract law, while also covering work-related injuries/occupational diseases, sexual harassment/oppression, breach of contract, and infringement. It is necessary to clarify the subject, circumstances, calculation, payment, and rights protection path to avoid invalid clauses and loopholes.
Policy on Health and Safety
The employee health and safety management adheres to the principle of "prevention first, comprehensive management". Employers bear the primary responsibility and must provide qualified labor safety and hygiene conditions as well as protective equipment, conduct occupational health monitoring, implement the "three simultaneities", and ensure employees' rights to know, refuse, and safeguard their rights. Cases involving occupational diseases and work-related injuries shall be handled in accordance with statutory benefits.
Policy on Concern for the Environment
Environmental protection clauses should adhere to the principles of "prioritizing protection, focusing on prevention, implementing comprehensive treatment, and assuming responsibility for damages". With the "Environmental Protection Law" as the core, they should cover environmental impact assessment/pollution discharge permits, "three simultaneities" (simultaneous design, simultaneous construction, and simultaneous operation), monitoring and reporting, solid waste/hazardous waste, emergency response, and information disclosure.
Policy on Sensitive Transactions
The core of sensitive transaction clauses lies in defining the scope of sensitive transactions, clarifying compliance requirements, and delineating responsibility boundaries. These clauses cover scenarios such as anti-money laundering, cross-border data, and high-risk categories (precious metals/gemstones). At the same time, they are designed to align with domestic and international regulatory rules (such as China's anti-money laundering regulations and the United States' Executive Order 14117), thereby preventing compliance risks and legal liabilities.
Policy on Commercial Bribery
The commercial bribery clause should be centered around Article 8 of the Anti-Unfair Competition Law, with clear definitions, prohibited lists, compliance obligations, reporting and investigation, breach and compensation, and exit mechanisms. It should be tailored to scenarios such as procurement/supply chain, sales/agency, engineering/service, and employee manuals, while also connecting with criminal law and industry regulation to form an executable closed-loop control system.
Accounting Controls, Procedures and Records
Financial control, operational procedures, and record-keeping provisions should be structured around the principles of "separation of duties, authorization and approval, closed-loop voucher management, consistency between accounts and reality, and audit supervision". These principles should cover funds, procurement payments, sales collections, assets, costs and expenses, as well as reports and archives. At the same time, responsibilities and breaches of contract should be clearly defined.
Confidential or Proprietary Information
The intellectual property rights (including but not limited to patent rights, trademark rights, copyrights, trade secrets, exclusive rights in layout designs of integrated circuits, etc.) that each party independently owned before the cooperation shall remain in their respective ownership.
Policy on Conflicts of Interest
The conflict of interest clause is an important stipulation that regulates the behavior of specific entities and prevents the risk of conflict of interest. It is widely present in enterprise management systems, contract agreements, and laws and regulations. Its core purpose is to avoid damage caused by conflicts between the personal interests of the entity and the collective interests it represents (such as corporate interests, public interests) when performing duties or conducting cooperation.
Policy on Monitoring
Clarify the subject + scope of supervision: who supervises and what is being supervised (such as contract fulfillment progress/quality/fund utilization/compliance)
Clear supervision methods + obligation to cooperate: how to supervise (regular inspection / irregular inspection), and the supervised party must cooperate by providing relevant information
Clear problem handling: how to rectify violations and bear responsibility for breaches
Clear supervision methods + obligation to cooperate: how to supervise (regular inspection / irregular inspection), and the supervised party must cooperate by providing relevant information
Clear problem handling: how to rectify violations and bear responsibility for breaches
Policy on Inspection and Certification
Inspection and verification clauses are provisions in a sales contract that clearly stipulate who, when, where, and by what standards and methods the quality, specifications, quantity, weight, packaging, etc. of the goods will be inspected, tested, or verified before and after delivery, with the results serving as the basis for final delivery.
Main purpose:
Determining responsibility attribution: Clarifying whether the goods comply with the contract agreement is the core proof of the seller's obligation to deliver the goods.
Main purpose:
Determining responsibility attribution: Clarifying whether the goods comply with the contract agreement is the core proof of the seller's obligation to deliver the goods.
Services and Support
Sample Policy
Pls contact us for the sample details. We need to evaluate from your files, like Gerber and BOM.
After Sales Services
After-sales service for one-year warranty.
Customer Service e-mail
sales@lonstarpcba.com
Management
High quality comes first
Our mature team is comprised of professionals, each with an average of over 15 years of industry experience. We maintain a strictly selected supply chain, managing more than 300 suppliers with comprehensive oversight of quality, delivery time, and risk factors. Operations are supported by an efficient system, utilizing digital and intelligent ERP and MES solutions to enhance production efficiency and achieve a high level of informatization. For production and testing, we employ precision equipment characterized by advanced technology, high accuracy, speed, and reliability. Our commitment is reflected in an ultimate quality control process, which involves 19 rigorous inspection stages, each adhering to the strictest industry standards.
Contact Person
Mrs.Cathy, Liu
Job Title
Sales Manager
Trading Services
Trading Activities
Export PCBA products to overseas countries
Product Range
PCB Assembly
Components Sourcing
Rigid PCB, Flex and Rigid-Flex PCB
PCBA Design
Components Sourcing
Rigid PCB, Flex and Rigid-Flex PCB
PCBA Design
OEM Services
Manufacture PCBA according to the Gerber and BOM provided by customers
Quality Control Measures
19 QC steps to control quality are very strict.
Minimum Order and Delivery Terms
MOQ: 1 pcs
Shortest leadtime of bare PCB is 3 days.
Shortest leadtime of PCBA is 14 days.
Shortest leadtime of bare PCB is 3 days.
Shortest leadtime of PCBA is 14 days.
Staff Verbal and Written Communication Skills
Good at English
OEM/ODM
Factory OEM/ODM Capabilities
We have a 15,000-square-meter Class 100,000 dust-free workshop, equipped with 9 fully automated high-speed SMT pick-and-place lines, as well as high-end equipment such as fully automated solder paste printers, brand-new imported Yamaha YSM20R, ten-zone nitrogen reflow ovens, online 3D SPI, online AOI, X-RAY, intelligent first article testers, BGA rework stations, PBT cleaning machines. Meanwhile, the SMT production yield rate is 99.9%.
Number of Production Lines
9
Factory Size
15000.0 Square Metre
Number of QC Staff
30 to 39
Number of Production Staff
250 to 299
Number of R & D Staff
10 to 19
Years of OEM/ODM Experience
16
Buyer Labels Offered
Automotive Electronics Brands, PCBA Factory
Machinery and Equipment Used
Automatic solder paste printer, Yamaha YSM20R, ten-temperature zone nitrogen reflow oven
Online 3D SPI, AOI, X-RAY, intelligent first article tester, BGA rework station, PBT cleaning machine
2 lead-free wave soldering machines, 1 selective wave soldering machine
Online 3D SPI, AOI, X-RAY, intelligent first article tester, BGA rework station, PBT cleaning machine
2 lead-free wave soldering machines, 1 selective wave soldering machine
Monthly Capacity
1,000,000 to 1,999,999 Pieces
Monthly Output
1,000,000 to 1,999,999 Pieces
Minimum Order
1 to 99 Pieces
Major Markets Served
Eastern Europe, Asia, North America, Western Europe, Mid East/Africa, Central/South America, Australasia
Main OEM Customers
Automotive Electronics companies, Industrial control, medicial equipment, consumer elctronics companies
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