Sprague Goodman SGNM Series high-voltage non-magnetic variable capacitor
20 March, 2014Sprague Goodman Electronics has expanded its non-magnetic variable capacitor product line with the SGNM Series. The product is claimed to be the first high-voltage (up to 12 kV) non-magnetic ceramic dielectric trimmer capacitor line for MRI and NMR applications. It is internally sealed to withstand external pressure of up to 40 psi and has residual magnetic value less than 20 nT.
Ultrathin capacitors
21 February, 2014 by ACS NanoResearchers have developed a way to shrink capacitors even further, which could accelerate the development of more compact, high-performance next-gen devices.
New supercapacitor stores energy on silicon chips
25 October, 2013Researchers have developed a supercapacitor out of silicon so it can be built into a silicon chip along with the microelectronic circuitry that it powers. In fact, it should be possible to construct these power cells out of the excess silicon that exists in the current generation of solar cells, sensors, mobile phones and a variety of other electromechanical devices, providing a considerable cost savings.
Enhanced yet affordable material for supercapacitors
12 July, 2013Researchers at Ulsan National Institute of Science and Technology (UNIST) have developed a new method to massively synthesise enhanced yet affordable materials for supercapacitors.
Electroactive polymers market worth $2.25bn
03 May, 2013Electroactive polymers have been used for some time in actuators, capacitors and nanocomposites but, with new recent technical progress, come new growth opportunities.
Building a better capacitor with manganese dioxide nanorods
26 April, 2013A new process for growing forests of manganese dioxide nanorods may lead to the next generation of high-performance capacitors.
All eyes on supercapacitors
26 February, 2013 by Dr Peter Harrop, Cambridge, UKSupercapacitors (ultracapacitors) are now centre stage for designers of electronics and particularly power circuits. This is because they are improving faster than the batteries and electrolytic capacitors they increasingly replace. Supercapacitors Europe 2013, forming part of IDTechEx’s premier technology events, is being held in Berlin, Germany, 17 to 18 April.
Scaling up production of graphene microsupercapacitors
21 February, 2013While the demand for ever-smaller electronic devices has spurred the miniaturisation of a variety of technologies, one area has lagged behind in this downsizing revolution: energy-storage units, such as batteries and capacitors.
TDK Corporation CJA series of TDK SRCT capacitors
10 December, 2012TDK Corporation has developed the CJA series of TDK SRCT capacitors in case size 0603 (EIA 0201). Compared to existing multilayer ceramic capacitors (MLCCs) of the same case size, the mounting footprint has been reduced by 50%. In this design with bottom terminals, a solder resist prevents wetting of the face and side areas of the MLCCs with solder.
AVX’s polypropylene dielectric DC Link Film Capacitor Series
03 September, 2012AVX Corporation has introduced a line of polypropylene dielectric DC link film capacitors.
Vishay VJ HIFREQ ceramic chip capacitor range
28 June, 2012Vishay has introduced a series of surface-mount multilayer ceramic chip capacitors offering high self-resonance, a high Q factor of ≥2000 and a low dissipation factor of ≤0.05 % for operation in high-frequency commercial applications.
TDK X8R multilayer ceramic chip capacitor range
11 May, 2012X8R multilayer ceramic chip capacitors now offer up to twice the capacitance of existing components with the same dimensions.
Vishay polypropylene film capacitor
27 March, 2012Vishay has announced a high-performance metallised AC polypropylene film capacitor featuring a wide capacitance range from 1 to 70 µF, long life of >60,000 h and voltage ratings up to 350. A 440 V version is under development.
Semikron PK16 capacitor
26 March, 2012The PK16 capacitor can be universally used for assembling low-inductance DC buffer circuits and DC filters.
Spectrum 55DC DC link power film capacitor range
20 March, 2012Richardson has released a range of DC link power film capacitors from Spectrum Advanced Specialty Products.
