How do ESCC 3201 and MIL-STD-981 really compare when it comes to space-grade inductors?

Exxelia's latest white paper provides a clear, technical comparison of the industry's two major space qualification frameworks. Grounded in real-world data, the analysis uses Exxelia's own space-qualified magnetic components—including chip inductors (MPCI), low-profile inductors (SESI), and common-mode chokes (CMC)—as practical reference points.

This comprehensive guide is designed specifically for engineers involved in satellite, launcher, and deep-space programs, helping them make informed decisions for high-reliability designs.

What's Inside the White Paper?
The document delivers a detailed breakdown of where the ESCC 3201 and MIL-STD-981 standards converge, where they diverge, and how optional testing can bridge the gap for missions requiring hybrid compliance.

Key topics covered include:
• Shared Philosophies & Equivalencies: A clear overview of the qualification flows and which tests are strictly equivalent between ESCC and MIL standards.
• Critical Differences: A close look at where the standards diverge, specifically regarding burn-in duration, vibration levels, mechanical shock, and environmental stress.
• Standard-Specific Screenings: Insight into why ESCC qualification often goes further on environmental robustness (e.g., barometric pressure and moisture resistance tests), alongside standard MIL-STD-981 requirements (e.g., radiography and Destructive Physical Analysis).
• Bridging the Gap: Actionable guidance on how Exxelia's ESCC-qualified inductors can be adapted to meet MIL-STD-981 requirements through optional, tailored screenings.

Why This Matters
Selecting the right qualification framework is critical for ensuring system reliability, mission autonomy, and long-term performance. This white paper equips design teams with a deeper understanding of how these stringent requirements apply to magnetic components, while illustrating how Exxelia can support space programs that require custom screening or additional testing.