ZSF

Quality Assurance

Four-level inspection system to ensure zero defects

Our Quality Control Process

Every component undergoes rigorous four-level testing to ensure full reliability and high performance.

1

Incoming Inspection

Perform 100% visual inspection and sampling tests on all incoming components.

  • Verify Packaging Integrity
  • Date code validation
  • Manufacturer Authenticity Check
  • Confirm Quantity
2

Technical Test

Conduct electrical parameter and performance tests using advanced equipment

  • X-ray internal structure inspection
  • Scanning Acoustic Microscopy Inspection
  • Cap analysis
  • Electrical Parameter Test
3

Reliability Testing

Environmental and stress testing ensure long-term reliability.

  • Temperature cycling (−65°C to +150°C)
  • Humidity Test (85°C/85% RH)
  • Thermal Shock Test
  • Solderability Test
4

Final Quality Check

Final inspection before shipment

  • 100% Functional Testing
  • Package Inspection
  • Document Review
  • Certificate of Compliance

Certifications and Compliance

Internationally recognized certification demonstrating our commitment to quality and environmental responsibility

ISO 9001:2015

Quality Management System

Design, sourcing, sales, and distribution of electronic components

ISO 14001:2015

Environmental Management System

Responsible Operations and Waste Management

RoHS Compliant

Restriction of Hazardous Substances Directive

All products comply with the EU RoHS Directive 2011/65/EU

UL Certification

Underwriters Laboratories

Electronic Component Safety Certification

Detect Device

Advanced inspection facilities ensure comprehensive quality verification.

X-ray Inspection System

Internal Structure Analysis, Void Detection, and Wire Bond Inspection

Precision:≤1μm resolution

Scanning Acoustic Microscope

Layered encapsulation, crack, and void detection

Precision:Up to 230MHz high-frequency imaging

Transistor Curve Tracer

Semiconductor I-V Characteristic Testing

Precision:±1% measurement accuracy

LCR Meter

Inductance, Capacitance, and Resistance Measurement

Precision:0.05% Base Accuracy

Constant Temperature and Humidity Chamber

Environmental Stress Testing

Precision:-70°C to +200°C, ±0.5°C stability

Solderability Tester

Pin Solderability Wetting Balance Test

Precision:Force resolution 0.1mg

Trusted Quality

Our commitment to excellence ensures every component meets your precise specifications.

Request Quality Documentation
Yue ICP Bei 2026070975 Hao-1