C0G with KONNEKT™ technology: 50 – 3,000 VDC capacitors for commercial & automotive applications

29 set 2022

The technology behind EVs continues to advance rapidly, with the latest quick charging developments needing powerful componentry in their power converters, inverters, snubbers, and resonators. In this article from KEMET, learn more about new COG KONNEKT™ Technology surface-mount capacitors, designed for high-efficiency and high-density power applications.

KEMET’s C0G with KONNEKT technology surface mount capacitors are designed for high-efficiency and high-density power applications. KONNEKT high-density packaging technology uses an innovative Transient Liquid Phase Sintering (TLPS) material to create a surface mount multichip solution for high-density packaging. By utilizing KEMET’s robust and proprietary C0G base metal electrode (BME) dielectric system, these capacitors are well suited for power converters, inverters, snubbers, and resonators 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. KC-LINK with KONNEKT technology also exhibits high mechanical robustness compared to other dielectric technologies, allowing the capacitor to be mounted without the use of metal frames.

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.

Part Applications

Wide Bandgap (WBG), silicon carbide (SiC) & gallium nitride (GaN) systems
Data Centers
EV/HEV (drive systems, charging)
LLC resonant converters
Switched tank converters
Wireless charging systems
Photovoltaic systems
Power converters
Inverters
DC link
Snubber

Part Benefits

Extremely high power density and ripple current capability
Extremely low equivalent series resistance (ESR)
Extremely low equivalent series inductance (ESL)
Low-loss orientation option for higher current handling capability
Capacitance offerings ranging from 14-880nF
DC voltage ratings from 500 - 2,000 V
Operating temperature range of -55°C - +150°C
No capacitance shift with voltage
No piezoelectric noise
High thermal stability
Surface mountable using standard MLCC reflow profiles