8 Products


Today’s vehicles have many electronic control units that enable absolute precision and control. At Knowles Precision Devices, one of our fields of expertise is the design and manufacture of components important to engineers in the automotive industry.

The Automotive Electronics Council (AEC) Component Technical Committee is the standardization body for establishing standards for reliable, high quality electronic components. Components meeting these specifications are suitable for use in the harsh automotive environment without additional component-level qualification testing.

The Component Technical Committee established AEC-Q200 “Stress Test Qualification for Passive Components” to define the minimum stress test driven qualification requirements for passive electrical devices including ceramic capacitors.

Knowles has developed a range of MLC capacitors and surface mount EMI filters qualified to AEC-Q200 rev D to meet the needs of high reliability and automotive manufacturers.

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StackiCap™ MLCC

The StackiCap™ range offers a significant reduction in ‘PCB real estate’ for an equivalent capacitance value when board space is at a premium. For example, a standard 150nF chip in a 8060 case size is now available in a much smaller 3640 case size. Knowles’s unique patented* construction and FlexiCap™ termination material make the StackiCap™ range suitable for applications including: power supplies, lighting, aerospace electronics and high voltage applications where a large amount of capacitance is required. Further developments are on-going, please contact the Sales Office for details of the full range. Maximum capacitanceUp to 5.6µFMaximum voltageUp to 2kVInsulation resistanceTime Constant (RxCr) (whichever is the least - 500s or 500MΩ)

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Optimize your power electronics with high-capacitance MLCCs designed to operate reliably and efficiently in the most demanding applications.

Hiteca™ Multilayer Ceramic Capacitors (MLCCs) Product Overview: For power electronics used in high-temperature environments such as electric vehicles or industrial applications, you can’t afford to protect your capacitors with cooling systems that can add weight and increase your product’s overall footprint. Instead, discover how our Hiteca™ range of multilayer ceramic capacitors delivers low losses while offering high, stable capacitance up to maximum voltage and temperature.

Through our unique, patented dielectric system, Hiteca™ MLCCs are able to achieve a capacitance aging rate of 0% per decade, and a typical capacitance reduction of

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The Automotive Electronics Council (AEC) Component Technical Committee is the standardization body for establishing standards for reliable, high-quality electronic components. Components meeting these specifications are suitable for use in the harsh automotive environment without additional component-level qualification testing.   The AEC-Q200 Ultra-Low ESR X8G range offers a very stable X8R High Q material system that provides excellent low loss performance. The range is tested and approved to automotive specification AEC-Q200. Optimized for lowest possible ESR, the electrode system provides low metal losses resulting in flatter performance curves and reduced losses at higher frequencies.

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Enhanced 250VAC and 350VAC Safety Certified Capacitors

Our latest enhanced range of Safety Certified capacitors complies with international UL / cUL and IEC/EN specifications to offer designers the option of using a surface mount ceramic multilayer capacitor to replace leaded film types.Advantages over other safety certified MLCC ranges include the following: Class Y2 250Vac ranges Class X1 & X2 305Vac ranges All ranges have a safety certified dc voltage rating (unique in the industry) Most ranges are certified as humidity robustness grade IIIB (unique in the industry)

Offering the benefits of simple pick-and-place assembly, reduced board space required and lower profile, they are also available in a FlexiCap™ version to reduce the risk of mechanical cracking.

Knowles’ high voltage capacitor expertise allows us to offer capacitance ranges that are among the highest in the market for selected case sizes.Applications include: modems and other telecoms equipment, AC-DC power supplies, power distribution switchgear, automotive applications, and where lightning strike or other voltage transients represent a threat to electronic equipment.

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