Stacked MLCCs from KEMET
For High Voltages & Capacitances
KEMET now added new products with KONNEKT™ technology to the portfolio, which are the high voltage COG “KC-LINK™” and X7R capacitors. KONNEKT™ technology is a high-density and robust packaging technology that allows components to be bonded together without the use of metal frames, reducing with it the ESR, ESL and thermal resistance to capacitors.
KEMET’s KC-LINK™ with KONNEKT™ technology surface mount capacitors are designed for high-efficiency and high-density power applications. This technology uses an innovative Transient Liquid Phase Sintering (TLPS) material to create a surface mount multi-chip solution for high-density placing on the PCB. By utilizing KEMET’s robust and proprietary C0G base metal electrode (BME) dielectric system, these capacitors are well suited for power converters and inverters as DC-link, snubber and resonance capacitors where high efficiency is a primary concern.
KONNEKT™ technology enables a low-loss, low-inductance package capable of handling extremely high ripple currents with no change in capacitance versus DC voltage and negligible change in capacitance versus temperature. With an operating temperature range up to 150°C, these capacitors can be mounted close to fast switching semiconductors in high power density applications, which require minimal cooling.
These capacitors can also be mounted in a low-loss orientation to further increase power handling capability. The low-loss orientation lowers ESR (Effective Series Resistance) and ESL (Effective Series Inductance) which increases ripple current handling capability.
Characteristics:
- Operating Temperature: -55°C to +150°C
- Rated Capacitance: 44nF – 880nF (±10% tol.)
- Typical ESR at 100 kHz: < 2.5mΩ max
- Rated Voltage: 500V – 1,700V
Benefits:
- Stable capacitance with temperature, frequency, and voltage
- Ultra-low ESR: < 2.5mΩ
- Ultra-low ESL: 0.45nH
- Surface mount capable with standard reflow process
- No piezoelectric noise
KEMET’s X7R with KONNEKT™ technology surface mount capacitors are designed for applications where higher capacitance and voltage are needed without requiring additional board space. KEMET’s X7R dielectric features a 125°C maximum operating temperature and is considered temperature stable.
The Electronics Components, Assemblies and Materials Association (EIA) characterizes X7R dielectric as a Class II material. Components of this classification are fixed, ceramic dielectric capacitors suited for bypass and decoupling applications or for frequency discriminating circuits where Q and stability of capacitance characteristics are not critical. X7R-ceramic exhibits a predictable change in capacitance with respect to time and voltage, boasting a minimal change in capacitance with reference to ambient temperature. Capacitance change is limited to ±15% from −55°C to +125°C.
In addition to their use in power supplies, these capacitors can be used in industries related to automotive (hybrid), telecommunications, medical, military, aerospace, semiconductors and test/diagnostic equipment. Automotive grade components are also available which meet the demanding Automotive Electronics Council’s AEC-Q200 qualification requirements.
Characteristics:
- Operating Temperature: -55°C to +125°C
- Rated Capacitance: 66nF – 20µF (±10% tol.)
- Rated Voltage: 25V – 1,500V
Benefits:
- Commercial and Automotive grade (AEC-Q200)
- Higher capacitance values with less space requirement
Your Contact Person
For more information, please contact Roland Trimmel.
