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About our traceability
As a manufacturer of AC/DC Power Adapter and switching power supplies, we implement strict quality control and a traceability system. Through this system, we further enhance the safety and quality of our Products, delivering trust and reliability to our customers. In the unlikely event that an issue arises with a Products, we immediately trace the cause and respond promptly. We remain committed to achieving customer satisfaction and earning your trust.
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What Is Traceability?
Traceability is a system that enables tracking and verification of the entire process of a Products, from raw materials to manufacturing, distribution, and final sale to the end consumer. This ensures product safety and quality, as well as a rapid response in the event of any issues.
As a manufacturer of AC/DC Power Adapter and switching power supplies, we have established a thorough traceability system centered on individual unit management through serial numbers. We maintain a system that retains historical data for all Products for 20 years.
Individual Unit Management by Serial Number
All of our Products are assigned a unique serial number to each unit. We manage each Products by its own unique number, not by weekly or monthly codes.
Example of our AC/DC Power Adapter Products label
Using this serial number, it is possible to trace back the historical data of each production lot. You can verify the production history on the manufacturing line for that Products, as well as the production codes of components supplied by each supplier allocated to the production lot.
Key Point: We adopt a unique serial number management system for each individual unit rather than lot management based on weekly or monthly codes. This significantly improves traceability accuracy in the event of an issue.
Contents of Historical Data and 20-Year Retention System
Historical data linked to serial numbers for each production lot is stored for 20 years for all Products. We maintain a 20-year data retention system in anticipation of the long-term use of our Products. The following are the main contents of the stored historical data.
| Data Item | Details |
|---|---|
| Production Line | Which production line the product was manufactured on |
| Production Date and Quantity | Manufacturing date and production quantity of the relevant lot |
| S/N Range | Serial number range of the relevant lot (including missing numbers) |
| Operator Names for Each Process | Personnel in charge of each manufacturing process |
| Solder Bath Parameters | Setting conditions for the soldering process |
| Mounted Component Manufacturer and D/C | Supplier and date code of the components used |
| Defect Items in Each Inspection Process | For electrical characteristic defects, the defective component and S/N are also specified |
| IPQC Patrol Inspection Records | In-process quality control patrol inspection results |
| OQC Inspection Records | Outgoing quality control inspection results |
These data are mutually linked, enabling simultaneous searches across multiple production lots and multiple models.
Prompt Response in the Event of an Issue
If a trend of failures is identified in a specific component in the market, we follow the process below to determine the root cause and assess the scope of impact.
| Step | Action Details |
|---|---|
| 1 | Identify the production lot from the serial number of the failed Products |
| 2 | Confirm the supplier and production code of the components issued to the relevant lot |
| 3 | Cross-search other Products lots that used the same component lot |
| 4 | Promptly inform the customer of the scope of impact (affected serial number range) |
20-year record retention system: Even for Productss that have been shipped more than 10 years ago, we can trace back from the serial number to confirm the component configuration, process conditions, and inspection records at the time of manufacturing. This system provides peace of mind to customers in fields with long product life cycles, such as industrial equipment and medical devices.
Related Pages
For more details about our quality control system, please also see the following pages.
Our Approach to Quality:
Our Approach to Quality (Top Page) ／ Quality Control System for Our AC/DC Power Adapter ／ Component Supplier Selection Method ／ Products Design and Quality Verification