January 2013
WIMA / VISEDO Power Storage Module
The product series has been developed in cooperation between WIMA and the Finnish heavy duty electric drive train specialist VISEDO for the heavy duty hybrid-electric vehicle (HEV) applications. The products are consisting of VISEDO® CMS (Capacitor Management System) and WIMA® SuperCap Double-Layer Capacitors. The module has been from the start developed to fulfill the requirements in mobile heavy duty applications.
. Modular design allowing the flexibility to fit the product into application needs
. Designed especially for highly cyclical loads typical in heavy mobile work machines and city buses
. Plain water or water/glycol mixture with wide temperature range -40...+65 ºC used in cooling
. IP67 enclosure class to maximize reliability
. Up to 97% efficiency
. High allowed ambient temperature and long life-time 90 000 h
. Integrated CMS (Capacitor Management System) including control, protection, supervision and communication (CANopen, SAE J-1939)
. User-friendly maintenance and commission interface with Visedo PowerUSERT tool
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January 2012
WIMA SuperCap C 60
WIMA has extended its range of Double Layer Capacitors by the new WIMA SuperCap C 60 series. The single cells are available in capacitance values of 1500 F, 2000 F and 3000 F and a rated voltage of 2.7 VDC. The capacitors in cylindrical metal housing have a diameter of 60 mm and are designed to substitute components of other manufacturers without problem. Almost any desired capacitance or voltage can be achieved by cascading.
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August 2011
New WIMA DC-LINK Capacitor Ranges
WIMA has supplemented the range of DC-LINK capacitors. The DC-LINK MKP 5 series with capacitances from 16 µF to 260 µF and rated voltages up to 1300 VDC is designed with a cylindrical plastic case and tinned wire terminations for PCB mounting. The DC-LINK MKP 6 series with cylindrical aluminium case is available with screw terminations for bus bar mounting, and covers a capacitance range from 165 µF through 1560 µF at rated voltages up to 1500 VDC.
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May 2011
SIEMENS grants Quality Award to WIMA
WIMA obtained the Quality Award of Siemens AG / Motion Control Division which does not only value the outstanding quality of the WIMA products supplied but also certifies the extraordinary service, cost effectiveness and delivery performance. This recognition is a result of the consistent and continuous improvement process in terms of quality, innovation, delivery reliability and best-value-for-money.
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November 2010
WIMA SuperCap MC Powerblock
WIMA SuperCap modules of the "Powerblock" range have a modular design. Based on SuperCap C cylindrical cells they are available with capacitances from 12F through 840F and with nominal voltages from 14V through 112V. Customized solutions can be realized on request. Typical applications are in automotive e.g. motor start, boardnet stabilisation, recuperation of braking energy, in railway technology, telecommunication, wind power systems, DC intermediate circuits or uninterruptible power supply (UPS).
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July 2010
WIMA Application Guide
WIMA has posted a new, comprehensive Application Guide for their products on the Internet. The Application Guide is structured both by fields of application (e.g. automotive, lighting, renewable energy etc.) and WIMA product families (e.g. SMD capacitors, Pulse capacitors, Snubber capacitors etc.).
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February 2010
WIMA Part Number System
With the beginning of 2010 WIMA has introduced a new Ordering Code System. Beside the electrical parameters like capacitance, voltage and tolerance the 18-digit codes define mechanical details like component dimensions, termination versions or pin length. Additional packaging information as for example type of taping and packing units complete the ordering codes.
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May 2009
WIMA RFI Capacitors with High Corona Inception Voltage
WIMA MKP-X2 R series capacitors are suitable for demanding AC voltage circuits e.g. where voltage is supplied via a capacitor power supply (the capacitor is switched in series to the load circuit as a low-loss series impedance). Due to their internal serie connection the capacitors exhibit an about 1.5 to twice as high corona inception voltage and thus higher rated AC voltage values than comparable components without series connection. WIMA MKP-X2 R capacitors are available with extended capacitance values up to 10 µF and a rated voltage of 400 VAC.
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March 2009
WIMA DC-LINK HC
Based on their internal construction and their non-polarized connection configuration WIMA DC-LINK HC capacitors can be connected in three different switching options. One individual capacitor can for example be connected as one 4500 µF/400 VDC, as two 2250 µF/400 VDC or alternatively as one 1125 µF/800 VDC component. The new WIMA range is used in intermediate circuit applications of power electronics, e.g. converters, and stands out by its high rated voltage per component, low dissipation factor (ESR) and very high insulation resistance. In case of breakdown the capacitors self-heal entirely and exhibit a high life time expectation.
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WIMA SuperCap Modules
WIMA SuperCap Double-Layer Capacitors are now also available as cascaded and balanced modules with capacitances up to 200 F or with nominal voltages up to 28 VDC. When properly treated WIMA SuperCaps have a service life beyond 10 years and can easily sustain more than 500,000 charge/discharge cycles. The efficiency is far higher than 90%. In comparison with other energy storage solutions WIMA SuperCaps stand out for maintenance-free operation, high life expectancy and comparatively low weight. Therefore they are virtually predestined for applications in isolated systems e.g. in inaccessible areas.
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WIMA Double-Layer Capacitors in
Cylindrical Metal Case
The new WIMA SuperCaps "C" series is currently available in capacitances of 110, 200, 600 and 1200 Farad (prototypes up to 10000 F), and thus completes the existing range of WIMA Double- Layer Capacitors with rectangular casing and beyond that offers a convenient substitution option for brands of other manufacturers. The WIMA SuperCap C is outstandingly suitable for energy storage applications where high loads need to be discharged and/or charged at a very short time. To achieve the corresponding operating voltage needed by the application SuperCaps are cascaded in so-called modules. Contrary to conventional energy storage on battery basis the charged energy can at any time be safely retrieved from the SuperCap module without any risk of a sudden voltage breakdown.
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Intermediate Circuit Capacitors
WIMA DC-LINK MKP capacitors are especially designed for applications in high power converter technology where due to increasing electrical requirements they are more and more substituting electrolytic capacitors. Manufactured with a low loss polypropylene dielectric they show a higher current carrying capability as well as lower dissipation/self-heating at high frequencies compared to electrolytic capacitors.
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WIMA Double-Layer Capacitors with very High
Capacitances
The Double-Layer Capacitors developed by WIMA are storage capacitors with highest capacitance values in the Farad range. They are among others suited to serve as batteries, can deliver considerably higher currents for a short time, however, and are maintenance free.
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Is the Film Capacitor a Discontinued Model?
Is the film capacitor in the process of becoming a victim of technical progress or is it a case of a passive electronic component which, when considered superficially, just runs the risk of being underestimated more easily than others, but nevertheless still holds potential for the future. This topic is to be treated in the following text from the point of view of a film capacitor specialist.
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