Arrow Plastic Network Card manual High Voltage, Multilayer Ceramic Capacitors

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High Voltage, Multilayer Ceramic Capacitors

Downsize with smallest high-voltage MLCCs

Some Syfer high voltage multilayer ceramic capacitors now offer double the capacitance thanks to breakthroughs in ceramic materials and manufacturing technology. The ability to reduce package size, or increase capacitance range in the same package size, will prove critical to meet today’s tight design constraints.

Already one of the most extensive high-voltage capacitor families available, Syfer now offers higher values. In most case sizes from 0805 to 1812, for example, Syfer offers the highest capacitance 1kV MLCCs in the market. Devices in the range from 500V to 1.5kV are of particular interest to power supply and DC/DC converter designers in the telecoms, military and aerospace markets.

Higher capacitance is available without increasing package size; the 1206 1.5kV capacitor, for example, now offers an impressive 10nF, up from 2.7nF. Many devices offer double the capacitance of earlier versions. The 1812 1kV device has increased from 56nF to 100nF.

If physical space is critical, Syfer’s new devices offer the possibility of a smaller case size, resulting in reduced board space requirements and lower costs. For example, a 1kV, 1nF capacitor previously offered in a 1206 package is now available in the 0805 case size and a 1kV 10nF part, previously in a 1812 footprint, is now offered in a 1206 package.

These extensions give engineers a broader choice of high-voltage devices to optimise their designs for performance and package size, while ensuring they are cost effective to meet tight budgetary constraints.

FlexiCap accommodates a greater degree of board flex than a conventional termination and reduces the chance of mechanical cracking. Devices meet RoHS standards with lead-free terminations. However, for exempt applications, versions with tin-lead contacts are available. Syfer can also offer additional testing services to meet the most stringent quality standards.

Smaller Case Size Equivalents

Type	Voltage	Capacitance	Previous Case Size
0805KY00102KXT	1kV	1nF	1206
0805Y1K00472KXT	1kV	4.7nF	1206
1206Y100103KXT	1kV	10nF	1812
1206Y1K00273KXT	1kV	27nF	1210
1812Y1K00104KXT	1kV	15nF	1825/2220

Features

USome capacitance values up to four times higher

UC0G and X7R dielectrics for 500V to 6kV rated MLCCs

UMore choice for designers:

-Increase capacitance values without increasing board space

-Choose a smaller case size, without reducing capacitance value

UReduced board space

ULower component cost

UFlexiCap termination option enhances reliability and long term performance

Applications

UTelecoms

UPower supplies

UDC-DC converters

UCommunications equipment

UMilitary and aerospace

For added reliability, Syfer offers its FlexiCap™ polymer-termination option as an alternative to a standard plated termination. Syfer received the Queen’s Award for Innovation, the most coveted commercial award in the UK, for this development in 2008.

Free Syfer high voltage Sample Kit and the MLCC Soldering and Handling Guide available! Please complete the reply slip or visit the weblink below.

For further information, including a Free high voltage Sample Kit and the MLCC Soldering and Handling Guide, please complete the reply slip or visit http://www.arrowne.com/innov/in215/f_1414.shtml

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