Product category: EMC Components
News Release from: Murata Electronics (UK) | Subject: Low-ESL capacitors
Edited by the Electronicstalk Editorial Team on 25 October 2006
Low-ESL capacitors suppress high frequencies
Murata has expanded its ranges of low-ESL capacitors, extending the capacitance ranges, over standard and extra low profile versions, while keeping ESL especially low
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As microprocessors continue to increase in speed, so the need grows for low equivalent series inductance (ESL) chip capacitors for decoupling purposes. Leading chip capacitor manufacturer, Murata, is not only meeting this demand but anticipating it, with an evolving range of low-ESL capacitors designed to suit a wide range of high frequency IC applications.
Murata has just announced a number of recent additions to its LLL, LLA, LLM and LLK series of low-ESL capacitors, extending the capacitance ranges, over standard and extra low profile versions, while keeping ESL especially low.
The LLL range, for example, with ESL quoted at 150 to 250pH, and targeting microprocessor clock speeds from 120 to 800MHz, has been extended with a number of X7S dielectric parts with capacitance ranges now up to 0.68uF (low profile) and 2.2uF (standard) in the smallest 0306 footprint, to 4.7 and 10uF in the 0508 package and to 10 and 22uF in the 0612 size.
The LLA series, with an ESL of 80 to 120pH for clock speeds from 800MHz to 2GHz, now includes low profile devices up to 4.7uF in the 0805 and 1206 footprints, and parts to 2.2, 10 or 22uF in the standard profile 0603, 0805 and 1206 footprints, respectively.
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Recent extensions to the LLM (45pH) series for clock speeds up to 3GHz, include the first standard profile parts in the smaller 0603 package with capacitances from 1 to 2.2uF and additions to 10 and 22uF for the 0805 and 1206 devices.
Low profile X7S dielectric LLM parts now range to 4.7uF.
Finally, for clock speeds above 3GHz, Murata's LLK series, 1206, standard profile device features an ESL better than 15pH and a capacitance of 4.7uF.
Low-profile versions include a 1206 devices specified at 15pH for a 2.2uF range and a smaller 0805, 2.2uF capacitor with an ESL of just 20pH.
Meanwhile, Murata's product development team is currently working on the next series, with an ESL of just 1 to 4pH for circuits running at faster than 10GHz, scheduled for release shortly.
Murata's low-ESL chip capacitors are competitively priced and specifically designed for decoupling high speed circuits used in equipment such as information systems, PCs, network devices, games and automotive systems.
Manufactured in Murata's state of the art facilities in Japan, these low ESL capacitors are readily available in production volumes, taped and reeled on standard manufacturing lead times.
Murata components have been fully RoHS compliant, on a factory shipping basis, since June 2005.
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