Murata Americas today introduced its DMH series, a new lineup of supercapacitors with a thickness of 0.4mm, a μF order capacitance, low ESR, and the capability to output instantaneous power. The product line delivers a solution to devices with limited space that are challenged by power consumption issues since its slim package can be mounted in underutilized space. Further, the DMH can […]
Capacitors
EMI suppression capacitors rated for 350 V AC
TDK Corporation presents a new series of robust EPCOS MKP X2 capacitors for EMI suppression. Compared with conventional X2 capacitors designed for rated voltages of 305 V AC, these new components offer a higher rated voltage of 350 V AC. This makes them suitable for EMI suppression in input filters – specifically for applications on […]
Polymer chip caps target dc-dc converter apps with extended temperature and voltage range
AVX Corporation has extended and upgraded its TCR Series professional conductive polymer chip capacitors with new case sizes, capacitance values, and voltage ratings, a higher maximum operating temperature, enhanced performance capabilities in humid environments, MIL-STD-202 mechanical shock and vibration qualification, and improved reliability. Based on AVX’s robust conductive polymer electrode technology — the materials, construction, and […]
When to use supercapacitors
in battery applications
Author: Rutronik Electronics staff As supercapacitors, or electric double-layer capacitors (EDLCs), become more and more widely used, they are increasingly looked at as replacements for batteries. However, in many cases a 1:1 exchange is impractical or even impossible. Nevertheless, supercaps have their place. Batteries and supercaps are based on completely different energy storage methods. Looking […]
MLCC capacitors target EV charging, high-rel timing circuits
Automotive-grade soft-termination and MEGACAP Type MLCCs combine the low relative permittivity of the C0G dielectric with rated capacitance values up to 300 nF and enable MLCCs to be used where reliability is required. Their rated voltages range from 50 V to 3 kV. Developed by TDK Corp., the new MLCCs feature high capacitance stability at […]
Top power electronics threads on EDAboard.com – November
(editor’s note: Intrigued by these power electronics problems? Have a question or optional solution? Then click the “Read more” link and follow the conversation on EDAboard.com or log in to EDAboard and participate in the power electronics forum thread.) Core (Inductor) selection for PFC – I am designing a PFC for my application and need […]
Top power electronics threads on EDAboard.com – October
(editor’s note: Intrigued by these power electronics problems? Have a question or optional solution? Then click the “Read more” link and follow the conversation on EDAboard.com or log in to EDAboard and participate in the forum thread.) Ferrite cores in push-pull topology – Can anybody advise me on the choice of toroidal cores for an […]
Flat aluminum electrolytic capacitors targets power supplies for critical systems applications
Cornell Dubilier Electronics, Inc. (CDE) has introduced the latest in its series of Flatpack ruggedized flat aluminum electrolytic capacitor, the MLSG. This series targets compact power supply applications in military and aerospace, as well as other critical systems. Design enhancements and a new electrolyte push the MLSG to nearly double the operating life of its […]
What engineering school doesn’t teach
about ceramic capacitors
Ceramics comprise the most widely used non-polarized dielectrics. The reason is they offer attractive combinations of volumetric efficiency, manufacturability, and cost. Some applications – such as high-frequency RF signal chains and high-precision measurement circuits – take advantage of the parametric performance available from other dielectrics, but currently available ceramic formulations perform well in a wide […]
Advances in dc-link power capacitor technology
Compact and efficient dc-links have become practical thanks partly to ceramic capacitor designs that excel at thermal stability and feature low parasitic inductance. Matt Reynolds, EPCOS, a TDK Group Company The technology behind capacitors has been around since late 1745 when a German physicist found that an electrical charge could be stored by connecting a […]