KEMET releases new MLCC High Voltage U2J Dielectric

KEMET’s Class I U2J High Voltage series is designed to meet the growing demand for high AC current resonant applications such as LLC resonant converters and wireless power transfer circuits in electric vehicles. By utilizing KEMET’s proprietary U2J dielectric, this series provides designers with a surface mount solution with extremely low ESR and ESL with very high AC current capability. This leads to minimal i2R heating losses which equates to higher efficiency power conversion.

U2J is not sensitive to capacitance loss with DC Bias as compared to Class II dielectric materials and retains over 99% of nominal capacitance at full rated voltage. KEMET automotive grade capacitors meet the demanding Automotive Electronics Council’s AEC–Q200 qualification requirements. Capacitance change is limited to −750 ±120 ppm/°C from −55°C to +125°C. These devices are lead (Pb)-free, RoHS and REACH compliant without exception and are capable of withstanding multiple passes through a lead (Pb)-free solder reflow profile.

Benefits

AEC–Q200 automotive qualified
Very High ripple current capability
Extremely low effective series resistance (ESR)
Extremely low effective series inductance (ESL)
Retains over 99% of nominal capacitance at full rated voltage
Small predictable and linear capacitance change
with respect to temperature <−750 ±120 ppm/°C
Operating temperature range of −55°C to +125°C
Lead (Pb)-free, RoHS, and REACH Compliant

Applications