Tantalum Capacitors protect from short circuit conditions.
January 28, 2013 -
Featuring internal fuse that results in fail open condition, T496 Hi-Rel Fused COTS MnO2 Series is suited for high reliability applications where capacitor failing short will disrupt overall system performance. Surface mount devices offer options such asásurge current testing, Weibull Grading, termination options, and various ESR levels. Units are suited for decoupling and filtering in computing, telecommunication, defense, and industrial end applications requiring built-in fuse capability.
(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)
|Original Press Release |
Kemet Electronics Corp.
1224 Old Stage Rd.
Simpsonville, SC, 29681
KEMET Introduces New True Fail Open Tantalum Capacitor
T496 Hi-Rel Fused COTS MnO(2) Series Protects from Short Circuit Conditions
GREENVILLE, S.C., -- KEMET Corporation (NYSE: KEM), a leading manufacturer of tantalum, ceramic, aluminum, film, paper and electrolytic capacitors, today introduced its new T496 Hi-Rel Fused Commercial-Off-the-Shelf (COTS) MnO(2) Series of tantalum surface mount capacitors. These devices are ideal for use in high reliability applications where a capacitor failing short will disrupt the overall performance of the system. The internal fuse in the capacitor results in a fail open condition.
"KEMET's T496 COTS Series offers our customers a true fail open tantalum capacitor," stated Dr. Philip Lessner, KEMET's Senior Vice President, Chief Technology Officer and Chief Scientist. "Fuse actuation makes it possible for this failure mode to eliminate any concerns with parts failing short by ensuring that the capacitor is isolated from the circuit, thereby increasing overall reliability."
The T496 Hi-Rel Fused COTS MnO(2) Series is available in DLA (DSCC) Drawing 04053 and can be ordered with a variety of options including surge current testing, Weibull Grading, termination options, and various ESR levels. A customizable testing and screening protocol is available upon customer request.
Typical applications include decoupling and filtering in computing, telecommunication, defense, and industrial end applications requiring a built-in fuse capability. This includes filtering for point of load and switch mode power supplies.
Typical markets include defense and aerospace, computer, industrial, lighting, and telecommunications. These devices range in price from $0.50 and higher, and complement KEMET's T493, T497, T513, T540, T541, and T543 series of COTS capacitors.
Additional Technical Information
KEMET's T496 Hi-Rel Fused COTS MnO(2) Series is designed to operate in high-current applications and includes a fusing mechanism. The built-in fuse element provides excellent protection from damaging short circuit conditions in applications where high fault currents exist. This type of fuse is ideal for high-current applications where no external series resistance is used. This solution will impact the failure mode process, replacing a short circuit situation (with high risk of circuit damage) with an open circuit. This type of capacitor will prevent any circuit interruption due to the capacitor failure mode. Fuse activation will occur (at room temperature 25 degrees C) within 1 second at fault currents of 4 amps and higher. As the fusing process is initiated, a post actuation resistance of greater than 10 megaohm is assured (at 25 degrees C).
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:ááDean W. Dimke
Senior Director, Marketing Communications and Investor Relations
954.766.2806 SOURCEá KEMET Corporation
Web Site: www.kemet.com