Wima's DC-Link MKP 4 capacitors are available with capacitances of 5 μF up to 75 μF and voltages of 450, 700, 900 and 1100 V d.c. They are constructed with a winding element of metallised polypropylene film boxed in a plastic case with self-extinguishing epoxy resin sealing.
These new capacitors are designed for use in DC Link applications in power electronics and are outstanding due to their high rated voltage per component, low dissipation factor (ESR) and very high insulation resistance. Due to their construction they are entirely self-healing in cases of breakdown and exhibit a high life-expectancy. The unpolarised contact configurations, in 4-lead version or with screw-on terminal lugs, guarantee safe contacts even at high current loads.
DC Link capacitors with plastic film dielectric are steadily replacing traditionally used electrolytic capacitors due to more severe electrical requirements in the DC intermediate circuit, such as increased voltages or increased AC converter switching frequencies. As an example, for physical reasons electrolytic capacitors can only be rated up to approximately 500 V d.c. Moreover, due to the high ESR of electrolytics, the AC current load at high frequencies leads to considerable dissipation/self-heating and thus severely limits the permissible current carrying capability.
Smallest automotive maXTouch controllers 29 July 2020, Altron Arrow, Avnet South Africa
, DSP, Micros & Memory
To help enhance and ease today’s driving experience, automotive manufacturers are implementing additional touch displays beyond the centre infotainment display (CID). Supporting the application of these ...
Read more...CeraCharge now available in a small packing unit 30 June 2020, Electrocomp
, Passive Components
TDK is presenting a new packing unit for CeraCharge, the world’s first SMD technology solid-state rechargeable battery, in the compact size EIA 1812 (4,4 x 3,0 x 1,1 mm). The packing unit (B73180A0101M199) ...
Read more...3 kW TVS diode arrays 30 June 2020, Avnet South Africa
, Circuit & System Protection
To ensure critical operations, aviation and space systems rely on digital and logic functionality and circuitry in engine control units, environmental controls, instruments and actuators. Data centres, ...
Read more...Surface mount resistors and terminations 30 June 2020, RF Design
, Passive Components
Smiths Interconnect announced the release of its extended CXH series of surface mount chip resistors and terminations. The CXH series uses a patented layout to provide improved power handling over conventional ...
Read more...PCIe Gen 4 switches 30 June 2020, Avnet South Africa
, Computer/Embedded Technology
To support cloud, data centre and hyperscale computing that facilitates advancements in artificial intelligence (AI) and machine learning (ML), Microchip Technology released to production its Switchtec ...
Read more...DIN-rail mounting DC-DC converters 30 June 2020, Avnet South Africa
, Power Electronics / Power Management
Shortly after unveiling the brand-new DIN-rail mounting DC-DC converter family, the DDR-15/30/60/120/240 series, Mean Well has announced the DDR-480 series (480 W) to enable integration into higher-power ...
Read more...Broadband capacitors and their significance 30 June 2020, TRX Electronics
, Passive Components
There are a number of circuits that require coupling RF signals or bypassing them to ground while blocking DC over extraordinarily large RF bandwidths. The applications for which they are intended typically ...
Read more...Thick-film chip resistors 29 April 2020, Electrocomp
, Passive Components
Bourns announced the introduction of its new Model CR01005 series thick-film chip resistor. This extra small – 01005 inch (0402 metric) – CR01005 series broadens the general purpose thick-film chip resistor ...
Read more...Automotive-grade MLCCs 29 April 2020, TRX Electronics
, Passive Components
Yageo's automotive grade MLCC (multilayer chip capacitor) AC/AS series is AEC-Q200 qualified as well as MIL-STD-020D tested to ensure its reliability under various temperatures (from -55°C to +150°C) ...
Read more...Chip resistors in automotive grade 29 May 2020, Altron Arrow
, Passive Components
Vishay has enhanced its MC AT precision series of automotive grade thin film chip resistors with a wider range of resistance values from 47 Ω to 10 MΩ in the 1206 case size. The MCA 1206 AT is the industry’s ...
printer friendly version