May/June, 2012
www.us-tech.com
Cornell Dubilier Introduces Hi Energy DC Link Capacitors
Liberty, SC — Cornell Dubilier has introduced its Type 947D high energy density DC link capacitors for larger inverter systems. The 947D is an excel- lent choice for DC link applications
loss observed with non-segmented types. According to the company, the segmented feature enhances open cir- cuit protection, limits capacitance loss and increases reliability in critical DC Link applications. The company’s advanced processing, testing and 100 percent burn-in greatly reduce or eliminate infant mortality and early field failures. Available in 130 to 3600µF and
rms current ratings in excess of 100A, The capacitors are packaged in cylindrical aluminum cases with
diameters of 85, 90, 100 and 116 mm. Voltage ratings range from 800 to 1300VDC. The heavy-duty M8 x 20 threaded studs or optional M6 threaded inserts are used to connect the high current terminals to the inverter’s bus. An optional M12 mounting stud at the bottom of the case provides a robust mechanical connection where needed. Where increased strike distance between live parts is important for particular applications, the UL94V-0 plastic top offers greater terminal-to-case and
terminal-to-terminal insulation. Life expectancy is reportedly
200,000 hours at nameplate current ratings, voltage and temperature, and the 947D DC Link capacitor will excel at providing reliable filtering and smoothing for today’s demand- ing applications in inverters for wind and solar energy, electric vehicles,
motor drives, and UPS systems. Contact: Cornell Dubilier
Marketing, 140 Technology Place, Liberty, SC 29657 % 864-843-2277 Web:
www.cde.com
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High energy DC link capacitors.
where high bus voltage, high capaci- tance, and high ripple current are required for smoothing and filtering. Compared with major competi-
tive types, the 947D DC link capaci- tor offers up to 20 percent more capacitance in the same size case with lower ESR and higher ripple current ratings. Since a fused, seg- mented metallization pattern is used, the new capacitors offer greater open circuit protection and superior control of capacitance loss than competitive types. The pattern is deposited on a
low-loss, high-grade polypropylene dielectric. Built-in fuse links limit capacitance loss to a small segment within the capacitor in lieu of the larg- er areas of uncontrolled capacitance
Samtec Flex Cable Lines Now Carried By FIT (Flex Interconnect)
Milpitas, CA — Flex Interconnect Technologies (FIT) now offers Samtec’s standard line of flexes as well as support for its custom flexes. FIT has partnered with Samtec for more than eight years, and is an approved channel partner to carry the high-speed flex cable line. The company produces these with the same high-quality materials and streamlined processes that Samtec uses in order to meet the signal integrity and product reliability characteristics. FIex Interconnect Technologies
will supply Samtec Standard Flex Connector Cables from the series HFEM, HFEM2, HFHM, HFHM2, SADL, FFDL2, ZFHF, TCDL2, TFMDL, ZHDL2, ERDL2, HSF8 and ZF1 series. The high-speed flex cables will be available as standard stock items and also can be customized to fit specific customer needs. For more information or a price quote, contact
sales@fit4flex.com. Contact: Flex Interconnect
Technologies, 1603 Watson Court, Milpitas, CA 95035 % 408-956-3540 E-mail:
sales@fit4flex.com Web:
www.fit4flex.com
See us at SMT Hybrid Pkg. Booth 7-147
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