EE Product News

Chips Claimed To Be Smallest High-Frequency And General-Purpose Inductors

Two new families of multilayer ceramic and multilayer ferrite chip inductors have been developed that are said to include the industry’s smallest high-frequency and general-purpose devices. Suitable for handling filtering and impedance matching assignments in, among other things, mobile devices, telecomm systems, and automotive electronics, the ceramic chip inductors come in 0402, 0603 and 0805 sizes and inductance values ranging from 1 to 100 nH. They also boast of high Q values at high frequencies and high self-resonant frequencies (SRFs). For instance, Q values range from 10 to 23 at 100 MHz and from 21 to 63 at 800 MHz, while typical SRFs extend up to 6,000 MHz. The multilayer ferrite chip inductors are general-purpose devices available in 0603, 0805 and 1206 sizes, inductance values of between 0.047 and 12 µH, minimum SRF figures between 320 and 15 MHz and minimum Q values of from 10 to 50. Maximum starting dc resistance ratings for the ceramic and ferrite chip inductors are 0.1_ and 0.15_, respectively, while current ratings are up to 300 mA. The new inductors are priced from $0.08 each/25,000. BCCOMPONENTS INTERNATIONAL B.V., Eindhoven, The Netherlands. +31 40 2590 700.


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