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Quality Assurance

It is the policy of 3J LIMITED to provide defect-free products and services that meet or exceed our customers' expectations.

We are fully committed to our program of continuous process improvement to ensure that this objective is met.

Our Quality Process

Supplier Selection

Our Supplier Selection and Approval System ranks vendors based on strict criteria, categorizing, documenting, and routinely reviewing them. Suppliers may be reclassified in response to non-conformance in product reliability, changes in quality status, or negative industry reports regarding overall quality.

Inspection & Testing

Our certified quality professionals are trained to inspect all aspects of received products, including packaging, labels, barcodes, part markings, X-ray, decapsulation, marking permanency, and dimensions, to ensure compliance with the manufacturer's specifications.

Logistics

Every shipment at 3J LIMITED is tracked to the minute, and our packaging solutions safeguard product condition during transportation. Our certified inspection and logistics hubs in Hong Kong afford considerable cost and timing advantages.

Quality Policy

3J LIMITED always adheres to the excellent quality of electronic components, putting an end to all fake and shoddy products.

We strictly comply with the original preservation environmental standards for materials of all levels by controlling the saving condition such as packaging, humidity, temperature etc.

All our products are supported with at least 1 year warranty.

Quality Policy
Third-Party Test Lab

Third-Party Test Lab

3J LIMITED cooperates with reputable third-party test labs such as White Horse Laboratories and China Electronic Component Center Laboratory. We coordinate tests according to the complexity of the components and our customer's specifications.

These tests may include but are not limited to:

  1. Parametric and Functional Test
  2. X-ray Fluorescence (XRF)
  3. Solderability Testing
  4. Heated Chemical Testing (HST)
  5. Decapsulation and Die Analysis
  6. Comprehensive Electrical Testing
  7. Visual Inspection

External Visual Inspection

3J LIMITED can proceed external visual inspection by using our own testing equipments. Appearance test refers to confirming the following aspects:

Confirming the number of chips received, inner packaging, humidity indicator, desiccant requirements and appropriate outer packaging.

Mainly includes: chip typing, years, country of origin, whether to recoat, pin status, are there any re-sand marks, unknown residue, factory logos position.

Verifying part markings, lot codes, date codes, and manufacturer logos against specifications to detect any signs of remarking or counterfeiting.

Ensure Quality in Your Supply Chain

Partner with 3J LIMITED for certified, inspected, and warrantied electronic components.

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