Module 2: Product Design Principles
Module 3: Setting Up a Pre-Compliance Lab
Module 4: Real-World Failure Cases
Module 5: Debugging and Fixing EMC Issues
Module 6: Preparing for Compliance Testing

Why Products Fail EMC Test ?

More than 50% of devices fail EMC testing on their first submission. In startups and fast hardware cycles, this rate can exceed 90%.

The reasons are not complex — they are structural and preventable.

 

Cause

Description

Poor PCB layout

Inadequate return paths, long traces, no ground fill

Bad grounding

Multiple returns, floating shields, noisy grounds

Cable radiation

Long unshielded cables acting as antennas

Switching noise

DC/DC converters and clocks radiating harmonics

Enclosure leaks

Plastic cases, seam gaps, lack of shielding material