🔊 Avoid Pitfalls When Choosing a PCBA Manufacturer! 5-Step Selection Guide You Can Follow Directly

I. Official Website Evaluation

1. Qualification Certificates: Check whether ISO, UL and other certificates are publicly displayed.
2. Equipment List: Confirm the clear brand and model of core equipment such as SMT mounters.
3. Capacity Information: Verify monthly capacity, mounting efficiency, maximum PCB size, and other data.
4. Process Capability: Confirm minimum line width/space, layer count, and special process capabilities such as HDI and impedance control.
5. Cooperation Cases: Review cases with well-known enterprises and cross-verify their authenticity.

II. Third-Party Platform Cross-Verification

1. Registered Capital: ≥ 5 million RMB for relatively higher operational stability.
2. Years of Establishment: Over 5 years of experience indicates better risk resistance.
3. Staff Size: Actual social insurance contributors reflect real scale; be cautious with fewer than 20 people.
4. Legal Risks: Check for excessive contract disputes and debt-related lawsuits.
5. Change Records: Frequent changes of legal representative or registered address imply higher risks.

III. Technical & Qualification Verification

1. Verify the authenticity of ISO, UL and other certificates using company name.
2. Check technical patent portfolio using company name + patents.

IV. Online Price & Service Verification

1. Quotation Analysis
   • Clear breakdown of engineering fees, testing fees and other cost items.
   • Reasonable tiered pricing for 100, 1,000 and 10,000 pieces.
2. Service Response Test
   • Evaluate response efficiency during non-working hours.
   • Pose professional technical questions to confirm access to the technical team.
   • Request DFM suggestions to assess design optimization capability.

V. Social Media & Reputation Verification