PCBA Component After-Sales Claim Form

We regret to learn that for Order No. [Please enter order number], an anomaly has been identified involving component [Reference Designator + Component Code].

To help us resolve the issue efficiently, please provide the following information as completely and accurately as possible.

Section 1: Description of the Issue

• Order Quantity:
• Defective Quantity:
• Defect Rate:
• Photos / Videos of the Defective PCBA and Affected Component(s):

Please clearly mark the reference designator(s) of the defective component(s) and clearly demonstrate the failure symptoms (e.g., cracking, soldering defects, no oscillation, short circuits, incorrect electrical values, etc.).

• Defect Distribution Pattern:

☐ Random distribution

☐ Board edge

☐ Specific module / area

☐ Entire board

Section 2: Component Information and Design Documentation Requested

1. Component Datasheet Verification

Please review the component datasheet and test whether the measured resistance/value of the component matches the datasheet specifications.

If discrepancies are found, please provide:

• Screenshot of the specified value from the datasheet
• Photo of the measured value
• Video showing the abnormal measurement process

2. Design and Application Review Materials

Relevant schematic sections:

Please provide the schematic page(s) showing the affected component and its surrounding circuitry.

PCB fabrication and DFM review:

Please check whether there are any issues in the Gerber files or DFM drawings. If issues are identified, provide annotated images highlighting the error locations.

Critical operating parameters verification:

Please confirm that the voltage, current, frequency, and power applied to the component in the design are strictly within the limits specified in the datasheet.

3. Samples and Test Support

Good vs. defective sample comparison:

Please perform comparative testing between good samples and defective samples, and provide test data comparisons along with supporting photos or videos.

Customer-side test results:

Was the issue reproducible during customer-side testing? If so, please describe the observed behavior and test conditions.

4. History and Change Information

Is this component used for the first time in this order, or is it an alternate / substitute part?

Have you previously placed orders with the same design at JLCPCB? If yes, please provide the previous order number(s).

Compared with previous successful orders, have there been any changes in:

• BOM
• Component part numbers or markings
• Component suppliers
• PCB design

If yes, please provide detailed descriptions of the changes.