Capacitor technology focuses on high voltage commercial and automotive applications
KEMET ArcShield High Voltage capacitors are primarily suited for applications, such as automotive, that meet or exceed 500 V with exposure to high humidity environments. Conditions such as these promote surface arcing in MLCCs. The ArcShield devices inhibit surface arc-over discharge, thereby preventing damage to the capacitor and surrounding components on a printed circuit board.
Surface arcing is generally caused by a high voltage gradient between the MLCC's termination surfaces or between one termination surface and the component's internal electrode structure. The phenomenon can either damage surrounding components or lead to a breakdown of the MLCC's dielectric material, ultimately leading to a short-circuit condition (catastrophic failure mode).
For added reliability, KEMET's Flexible Termination technology is an available option that provides superior flex performance over standard termination systems. The technology was developed to address flex cracks, which are the primary failure mode of MLCCs and typically the result of excessive tensile and shear stresses produced during board flexure and thermal cycling. Flexible Termination technology inhibits the transfer of board stress to the rigid body of the MLCC, therefore mitigating flex cracks which can result in low IR or short circuit failures.
ArcShield High Voltage MLCCs are also available in automotive grade, which undergo stricter testing protocol and inspection criteria. Whether under-hood or in-cabin, these devices are designed for mission and safety-critical automotive circuits or applications requiring proven, reliable performance in harsh environments.
Typical markets include power supply, LCD fluorescent backlight ballasts, HID lighting, telecom equipment, industrial and medical equipment/control, LAN/WAN interface, analog and digital modems, and automotive. Typical applications include switch mode power supplies (input filters, resonators, tank circuits, snubber circuits, output filters), high voltage coupling and DC blocking, lighting ballasts, voltage multiplier circuits, DC/DC converters and coupling capacitors in Cuk converters.
Visit Kemet at www.kemet.com
- KEMET releases world's first 250-V 0402 C0G ceramic capacitors
- Automotive circuit protection; high temperature, low leakage varistors
- Toyota adopts LEDs for adaptive high beam technology
- Microchip adds enhanced noise immunity, ECC flash to MCUs
- USB 4-port controller hub connects smartphone to infotainment system
- LIN device family cuts costs in in-vehicle networking
- High-temp, 150C, capacitors for automotive applications
- Automotive/industrial buck controller maintains efficiency at high conversion ratios
- CMOS image sensors offer VGA for surveillance cameras and drive recorders
- High-current inductor offers high-temperature benefits
- 45-V LDO has programmable current limit and power good flag
- Automotive ESD protectors in 0402 and 0603 packages
- Processor IP targets safety-critical applications
- Panasonic adds electrolytic chip capacitors to European distribution channels
- New material paves way for high temperature capacitors in cars
- Is this the Tesla killer?
- Self-driving cars in real-world traffic with real customers
- Flow cell powertrain stuns with extreme data
- Audi launches lighting lab
- Supercapbatteries, thermoelectrics to power future cars
- Fuel cells in trucks: silent power instead of idling motors
- Connected Car: Dramatic growth ahead
- Rear axle becomes steerable… by wire
- Ballard IP to boost Audi’s fuel cell developments
- Infineon, Hella make radar sensor more affordable
- Porsche rainmaker advocates platooning
- Volvo cars share road-condition info in the cloud
- Scalable electric powertrain targets utility vehicles
- OLED exterior lighting soon in series vehicles, Osram says
- Driver chip reduces LED taillight complexity
- Making cars safer through technology innovation
- Supplying DC input power for HEV testing
- NSR Noise Suppressors: Wirewound Resistors
- Virtual Hardware “In-the-Loop”: Earlier Testing for Automotive Applications
- Open Standards and Product Differentiation
- Camera Solutions with Micrel Power Management and Networking