Tantalum SMT Capacitors are available in 35 and 50 V ratings.
July 25, 2012 -
With ESR values as low as 6 mohm, T540 and T541 Polymer Commercial-Off-the-Shelf (COTS) Series includes 35 and 50 V products with Ta anode, Ta(2)O(5) dielectric, and conductive organic polymer cathode plate. Self-healing mechanism is standard with T540 Series, which is rated for voltages from 2.5-50 V and capacitance from 6.8-680 µF. Multiple anode T541 Series, with ESR values from 10-40 mohm, offers capacitance from 22-1,500 µF. Both series operate up to 125°C.
Original Press release
Kemet Electronics Corp.
P.O. Box 5928
Greenville, SC, 29606
USA
KEMET Adds First-to-Market Voltage Values to Tantalum Polymer Portfolio
The T540 and T541 Polymer COTS Series Now Include 35 and 50 Volt Products
GREENVILLE, S.C. -- KEMET Corporation (NYSE: KEM), a leading manufacturer of tantalum, ceramic, aluminum, film, paper and electrolytic capacitors, today announced additions to its T540 and T541 Polymer Commercial-Off-the-Shelf (COTS) Series of tantalum surface mount capacitors. First-to-market 35 and 50 volt Polymer COTS products provide a better solution than traditional MnO2 devices for certain high reliability applications including radar pulse capacitor, point of load power supply and switch mode power supply.
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"With ESR's as low as 6 milliohms and excellent power dissipating ability, the T540 and T541 Series result in significantly lower capacitance roll-off at higher frequencies and lower temperatures, and provide ripple current capability approximately three times higher than the equivalent MnO(2 )capacitor," said Dr. Philip Lessner, KEMET's Senior Vice President, Chief Technology Officer and Chief Scientist. "These features, along with low voltage derating, allow for use of smaller and, in some product designs, up to 90% fewer capacitors to support device function."
"The T540 and T541 Series have been designed, manufactured and tested to insure high reliability and robust performance," stated Per Loof, KEMET's Chief Executive Officer. "Our ability to achieve more power with smaller components and fewer parts translates into significant performance advantages for KEMET customers."
Typical markets include alternative energy, industrial, lighting, medical, defense and aerospace, and telecommunications. These devices range in price from $5 to $12 and complement KEMET's T493, T497 and T513 series of COTS capacitors.
Additional Technical Information
The T540 and T541 Series are part of the KEMET Organic Capacitor (KO-CAP) product family. KO-CAPs are tantalum capacitors with a Ta anode and Ta(2)O(5) dielectric. A conductive organic polymer replaces traditionally used MnO(2) as the cathode plate of the capacitor. KO-CAPs may also be operated at steady state voltages at up to 90% of rated voltage for part types with rated voltages of less than or equal to 10 volts and up to 80% of rated voltage for part types >10 volts. These products are available with a tin lead (SnPb) leadframe finish, surge current testing options and standard or low ESR levels.
The KO-CAP polymer cathode technology, combined with a multiple anode design, enables the T541 Series to deliver the lowest ESR values in the industry.
Glossary
ESR - Equivalent Series Resistance
About KEMET
KEMET's common stock is listed on the NYSE under the symbol "KEM." At the Investor Relations section of our web site at http://ir.kemet.com/, users may subscribe to KEMET news releases and find additional information about our Company. KEMET applies world class service and quality to deliver industry leading, high performance capacitance solutions to its customers around the world and offers the world's most complete line of surface mount and through-hole capacitor technologies across tantalum, ceramic, film, aluminum, electrolytic, and paper dielectrics. Additional information about KEMET can be found at http://www.kemet.com.
Contact: Dean W. Dimke
Senior Director, Marketing Communications and Investor
Relations
deandimke@KEMET.com
954.766.2806
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