Supplier's Category: All EMC/EMI Testing: Electromagnetic compatibility and interference
EMC/EMI testing verifies electromagnetic compatibility — that a product doesn’t emit interference beyond regulatory limits and doesn’t malfunction when exposed to interference from other devices. It’s a mandatory certification step for most electronic products before they can legally be sold.
EMC failures are one of the most common causes of a product missing its launch date, so pre-compliance testing early is worth more than most other testing investments.
- Ask about pre-compliance testing availability before the formal certification run, to catch problems cheaply
- Confirm the lab is accredited for your target market’s specific standards (FCC, CE, and others differ)
- Check chamber availability and lead time, since EMC labs are frequently booked out weeks in advance
Related terms: radiated emissions testing, conducted emissions testing, immunity testing, FCC Part 15 compliance, CE RED/EMC directive, ESD immunity testing, pre-compliance testing, anechoic chamber
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When to start EMC testing
The costliest EMC failures are the ones discovered only at formal certification — by then, a fix often means a PCB or enclosure redesign.
Typical sequence
- Pre-compliance testing during development, on early prototypes
- Design fixes applied based on pre-compliance findings
- Formal accredited certification testing once the design is frozen