TDK presents the new B2568 series of EPCOS MKP DC link power capacitors, which offer outstanding robustness under harsh environmental conditions. The new capacitors are designed for voltages of between 900 and 3000 V DC and cover a capacitance range from 50 to 4000 µF. Depending on type, the capacitors are dimensioned for currents of […]
Bringing science to the selection of mica capacitors
An RF modeler makes it easy to predict in-circuit S-parameters for mica capacitors used at microwave frequencies. Sam G. Parler, Jr., P.E. | Cornell Dubilier The choice of capacitor can particularly impact the performance of circuits handling RF and microwave frequencies. Specifying passive components operating in this region can seem more like art than science. […]
Polymer capacitors show promise as MLCC alternatives
It pays to know how different capacitor technologies behave when shortages force a search for good substitutes. Randall Scasny | element14 The demand for MLCCs (multilayer ceramic capacitors) has outstripped supplies since 2017. Industry observers expect the shortage will dissipate by 2020, but product manufacturers remain concerned. In a quest to find suitable alternatives, an […]
Film capacitors for dc link applications
TDK Corp. has extended the portfolio of EPCOS film capacitors for DC link applications with the B3277*X/Y/Z series. The new capacitors feature compact dimensions, high capacitance density, and high current capability. They are designed for rated voltages of between 500 and 1200 V DC. The series offers numerous standard capacitance values within the range from […]
Ceramic SMT capacitors offer low capacitance shift in resonant converters and wireless chargers
Kemet Corporation has announced a complete capacitance and voltage offering for the KC-LINK ceramic surface mount capacitors in the EIA 3640 case size. The very high ripple current capabilities make KC-LINK capacitors ideal for use with fast-switching wide bandgap (WBG) semiconductors, which enables power converters to operate at higher voltages, temperatures and frequencies, and achieve […]
Understanding the electromagnetics of real capacitors
by Asem Elshimi, Design Engineer, IoT Wireless Solutions, Silicon Labs Confession: For the longest time, up to my senior year in electrical engineering school, I thought you could find a capacitor on its own. I had such a boundless imagination to think that you could find a circuit element that is purely capacitive in behavior […]
Power factor correction capacitors reach 44 kvar performance
TDK Corporation presents DeltaCap X Black Premium – a new series of EPCOS MKD capacitors for power factor correction (PFC). With rated voltages of between 440 V AC and 850 V AC, the capacitors with an internal delta connection are designed for power factor correction and filtering of harmonics at the low-voltage level. With capacitance values […]
Up to 560 uF capacitance available in conductive polymer hybrid aluminum electrolytic capacitors
Panasonic Corporation announced today that its Industrial Solutions Company has commercialized the new ZKU series of large-capacitance conductive polymer hybrid aluminum electrolytic capacitors for use in automotive ECUs (electronic control units), etc. and will launch mass production in August 2019. With increased capacitance, the largest product of this series with ϕ10 x 10.2 mm and […]
Get ready for supercaps with 5x boost in power/energy density
Supercapacitors based on carbon nanotube technology are about to make the jump from laboratory curiosity to mass production. NAWA Technologies in France says it will soon begin the mass production phase of its next-generation ultracapacitor, the Ultra Fast Carbon Battery. Over the coming year, a first-of-its-kind ultracapacitor cell production line will be installed at the […]
Rugged AC filter capacitors conform to UL 810
TDK Corporation announced a new series of AC filter capacitors that are UL 810 approved at the component level and carry the CE mark. The capacitors of the B32354S3 series are designed for a rated voltage of 350 V AC and are available with capacitance values of 10 µF to 40 µF. The lead spacing […]
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