Kingtronics Blog

Multi-layer ceramic chip (MLCC) capacitors are used quite often in dc-dc converter input and output filters. They have low ESR, low ESL, and low cost. They also have no major reliability problems associated with them. All these properties make them suitable for power management applications. There are still, however, some issues to consider when using these capacitors in dc-dc converter circuits. Some ceramic capacitors can lose a lot of their value under certain conditions. This lost capacitance can degrade the transient response of a dc-dc converter, or it can even make the control loop of the converter unstable.

The capacitance per unit volume of the X7R/X5R dielectrics has increased quite a bit in the past few years. However, you should be careful about using the components with the highest capacitance densities. These capacitors lose a lot of their value at the higher frequencies where most dc-dc converter circuits operate. They lose even more capacitance when dc bias is applied to them.

Kingtronics specializes in application specific multilayer ceramic capacitors. Our product offerings included surface mount capacitors from the 0402 case size to larger high voltage units (up to 4KV) for Commercial and High Reliability applications.

Ceramic chip capacitors should be stored in normal working environments. While the chips themselves are quite robust in other environments, solder ability will be degraded by exposure to high temperatures, high humidity, corrosive atmospheres, and long term storage. In addition, packaging materials will be degraded by high temperature – reels may soften or warp, and tape peel force may increase. Kingtronics International Company recommends that maximum storage temperature not exceed 40℃, and maximum storage humidity not exceed 70% relative humidity. In addition, temperature fluctuations should be minimized to avoid condensation on the parts, and atmospheres should be free of chlorine and sulfur bearing compounds. For optimized solder ability, chip stock should be used promptly, preferably within 1.5 years of receipt

A capacitor is a passive electronic component consisting of a pair of conductors separated by a dielectric.

Kingtronics specializes in application specific multilayer ceramic capacitors. Our product offerings included surface mount capacitors from the 0402 case size to larger high voltage units (up to 4KV) for Commercial and High Reliability applications.

The NPO model from Kingtronics International Company is a series of multilayer chip-type ceramic capacitors that has 0.5pF to 10uF capacitance, with up to 10 percent tolerance.

The 0805-packaged MLCC is rated at 6.3V to 50V for low voltage chip ceramic capacitor and from 63V to 4kV for high voltage multilayer ceramic capacitor.

Our products LKT Chip multilayer ceramic capacitors 6.3V to 50V  and   HKT High voltage multilayer ceramic capacitors 63V to 4000V are marketed under our own brand "Kingtronics" and enjoy a very good reputation around the world. Many customers approved our product brand "Kingtronics" and appointed to order.

Kingtronics is one HK based manufacturer for electronics component since 1990. Now Kingtronics is an old brand and we also have enjoyed high reputation in electronics component field, especially for radial and axial multilayer ceramic capacitor!
Now fewer and fewer factories produce radial & axial lead mono capacitors, while Kingtronics still keep strong on radial multilayer ceramic capacitors and axial lead,

We have excellent support on radial MLCC capacitor,
***3-4 weeks delivery
***unbeatable price
***stable and high quality
***low MOQ
In case you have any inquiry for radial and axial multilayer ceramic capacitor, please feel free to contact us: info@kingtronics.com
MKT--Radial multilayer ceramic capacitor (mono cap)
0.1uF 50V Y5V +/-20% P:2.54mm Bulk RoHS
4700pF 50V +/-10% X7R P: 2.54mm Bulk RoHS
100pF 50V NPO +/-5% P: 2.54mm Bulk RoHS

AKT--axial lead, multilayer ceramic capacitors
0.1uF 50V +80-20% Y5V Ammo RoHS

Multilayer ceramic capacitors consist of electrodes, the interleaved ceramic dielectric and the external terminal connectors. The capacitance is given by the description:

A = Electrode area
n = Number of active layers
d = Distance between electrodes
εr = Dielectric relative
ε0 = Dielectric constant

Whilst the values “A x n” and “d” are respectively determined by the production process the dielectric constant is a function of the ceramic material used.

Ceramic capacitors have a variety of different ceramic dielectrics as the basis of the capacitor. Ceramic dielectrics are made from a variety of forms of ceramic dielectric. The exact formulas of the different ceramics used in ceramic capacitors vary from one manufacturer to another but common compounds include titanium dioxide, strontium titanate, and barium titanate.

The actual performance of the ceramic capacitors is highly dependent upon the dielectric used. Using modern dielectrics, very high values are available, but it is also necessary to check parameters such as the temperature coefficient and tolerance. Different levels of performance are often governed by the dielectric used, and therefore it is necessary to choose the type of dielectric in the ceramic capacitor.

Kingtronics www.kingtronics.com  produce and sell Ceramic Capacitors all types. Multilayer Ceramic Capacitors are available in four series in Kingtronics: AKT Series Axial Lead, Axial MLCC Capacitors(Multilayer Ceramic Capacitors), MKT Series Radial MLCC Capacitors(Multilayer Ceramic Capacitors), LKT Series Chip MLCC.

"Mono" refers to a "monolithic" or "multilayer" capacitor. This just refers to the manufacturing process whereby the capacitor is formed by binding multiple, thin sheets of ceramic on which electrodes have been painted.

As the ceramic material technology continues to advance, more and more capacitance is realized in the same case sizes compared to previous years. Kingtronics produce and sell ceramic capacitors all types. Multilayer ceramic capacitors are available in four series in Kingtronics: AKT Series Axial Lead, Axial MLCC Capacitors(Multilayer Ceramic Capacitors), MKT Series Radial MLCC Capacitors(Multilayer Ceramic Capacitors), LKT Series Chip MLCC Capacitors(Multilayer Ceramic Capacitors) (6.3V to 50V), and HKT Series High Voltage MLCC Capacitors(Multilayer Ceramic Capacitors) (63VDC to 4000VDC).

Multilayer Ceramic Capacitor(MLCC) is an electronic part that temporarily stores an electrinical charge and the most prevalent type of capacitor today.New technologies have enabled the MLCC manufacturers to follow the trend dictated by smaller and smaller electronic devices such as Cellular telephone,Computers,DSC,DVC,GPS.

Besides chip mlcc capacitor, Kingtronics radial mlcc capacitor (mono capacitor) is unbeatable in the market - Good price, High quality and Short lead time.

Mitsubishi Polyester Film offers a complete portfolio of film products to support the worldwide Mono Capacitors and ceramic casting markets. Hostaphan® polyester film is approved for use in high end ceramic applications as a release liner. Hostaphan® film is the leading choice of polyester film for ceramic casting world wide. The Hostaphan® product delivers the following superior product attributes:

• Extremely smooth surface
• Optimized shrinkage
• Superior handling characteristics
• Chemical resistance
• Excellent flatness
• Ultra thin, highly cured coatings
• Controlled static levels
• Manufactured in a clean environment

Mitsubishi Polyester Film products are typically used in electronics applications. Hostaphan® polyester film product categories for ceramic casting film are as follows:

• Ceramic substrates
• Solvent based multilayer ceramic capacitors (MLCC)
• Water based multilayer ceramic capacitors (MLCC)

Tokyo, Oct 13, 2010 (JCN Newswire via COMTEX) -- Showa Denko K.K. (SDK) will expand nanoparticle titanium-oxide production capacity at its fully-owned subsidiary Showa Titanium Co., Ltd., from 180 tons a month at present to 240 tons a month as from June 2011. The product, sold under the trade name of Super-Titania(TM), is used in the production of multilayer ceramic capacitors (MLCC Capacitors).

MLCC Capacitors are used mainly in electronic devices that require small size and light weight, such as PCs and mobile phones, as well as in such digital electric appliances as flat-panel TVs. Reflecting increasing demand for these products, the MLCC market is expected to continue growing at around 10% a year.

Under the circumstances, Showa Titanium will enhance the efficiency of production facilities for Super-Titania for MLCC applications and increase the number of production lines from three to four.

Titanium oxide (TiO2) is used in the production of barium titanate (BaTiO3), which is then used as raw material for dielectric*, one of the basic components of MLCC Capacitors. Furthermore, to produce small and high-capacity MLCC Capacitors, it is necessary to obtain high-purity, fine-particle BaTiO3. While there are two different processes for the production of BaTiO3 (solid-phase and liquid-phase**), fine-particle TiO2 is required for the solid-phase process, which enables low-cost production of BaTiO3 with superior dielectric properties. As Showa Titanium uses the most advanced process control technology, the company can provide Super-Titania in ultra-fine particle sizes, ranging from 15 to 250 nm (1 nm:one-millionth of mm). The product also has high purity, ensuring the production of MLCC Capacitors with smaller size and higher capacity.

In addition to the MLCC application, Super-Titania is used in various fillers and photocatalysts. To meet diversified needs of customers, we will provide high-quality products in a stable manner, establishing our leading position on the market.

* Dielectric: A material which is an electrical insulator, having the capability to store electricity and to discharge electricity instantly. As its dielectric properties improve, dielectric comes to have higher capacity to store electricity.

** Solid-phase and liquid-phase: Processes for the production of fine ceramics, including BaTiO3. In the solid-phase process, materials are mixed, and baked at high temperatures, resulting in synthesis of compounds through chemical reactions. In the liquid-phase process, materials are dissolved in a solution and undergo chemical reactions. Then the materials are baked at low temperatures, and converted into compounds.