High-Q Ceramic Core Inductor Series: CL Series
The CL Series High-Q Ceramic Core Inductors are designed for applications demanding high energy efficiency and consistent inductance over a wide frequency range, targeting the medical radar, and RF testing markets.
The series offers inductance values from 12 nH to 10 μH, with a core made from ceramic and all models being RoHS compliant and halogen-free. These inductors excel in environments where non-magnetic properties are critical, notably meeting MRI industry standards. Their Q factor remains high across frequencies, equaling or surpassing other industry-leading products. Each inductor’s electrical parameters—including inductance, Q, self-resonant frequency, DC resistance, and current ratings at 85°C and 125°C—are detailed, showing robust performance under stress and temperature extremes. Operating temperature ranges from -55°C to +125°C, with maximum current ratings up to 1000 mA at 85°C, and lower limits at higher temperatures, providing versatility for demanding environments. The components are designed for surface mounting and supplied in tape and reel packaging suitable for automated assembly lines, with dimensions standardized to IEC60286-3. Soldering recommendations ensure product reliability, recommending controlled preheating and limiting soldering iron contact to prevent damage. Mechanical qualifications include push, vibration, bend, and ESD tests, with all showing minimal inductance change and robust resistance to harsh conditions. Overall, the Knowles CL Series offers high-performance, reliable, and rugged inductors tailored for specialized professional electronic systems.