Q: How to reduce EMI?

MEMS performs better in shock resistance and lead time, while quartz excels in phase noise and frequency stability. We provide both MEMS oscillators and quartz-based crystal units and oscillators in our frequency-control portfolio. This allows us to address different design requirements rather than treating one technology as a universal replacement for the other.

Our product portfolio emphasizes miniaturization, high precision, and low power consumption, with frequency-control solutions for various electronic applications. When customers compare MEMS with quartz, we recommend evaluating the characteristics required by the intended design, including the balance between shock resistance, lead time, phase noise, and frequency stability, before selecting the appropriate technology.

A: AEC-Q200 is a reliability standard for passive electronic components developed by the Automotive Electronics Council. It defines a series of qualification requirements for components used in demanding automotive environments, including conditions involving temperature, humidity, mechanical shock, and vibration. SJK automotive-grade crystals have passed AEC-Q200 certification and are designed to meet the reliability requirements of vehicle electronic systems.

The qualification process includes strict reliability testing.

Temperature cycling is conducted from -50°C to +150°C for 1,000 cycles to verify that the package remains free from cracks, leakage, and structural damage.

Mechanical shock and vibration testing simulates harsh driving and road-impact conditions.
Humidity and heat testing is conducted at 85% humidity and +85°C for 1,000 hours to evaluate electrical performance stability.
Hermeticity, lifetime, and other reliability tests are also included in the qualification process.

For customers evaluating frequency components for automotive electronics, AEC-Q200 is therefore an important qualification to consider when assessing component reliability and suitability for demanding vehicle environments.