Murata has released its LLC series of multi-layer ceramic capacitors for automotive applications. The components feature a reversed termination for low ESL and are in a miniature 0,18 mm profile package. Footprint is just 0,5 x 1,0 mm for a 1 µF capacitance, making the parts currently the smallest in the market.
The LLC series uses Murata’s proprietary thin-layer forming and high-precision lamination technology, along with advanced material atomisation and homogenisation techniques to achieve about 20% reduction in component height compared with existing parts. This opens the potential to more easily fit the capacitors on the rear side of circuit boards, thereby locating them in optimum positions for decoupling of processor power rails. This, in turn, allows fewer capacitors to be used, saving cost, and increasing system reliability.
Along with the low ESR, the reduction in ESL achieved reduces the high-frequency impedance of the capacitors. This improves circuit performance to meet the requirements of modern, low-voltage, compute-intensive applications such as automotive advanced driver-assistance systems (ADAS).
The automotive-grade LLC series complies with AEC-Q200 requirements, passing the 1000 temperature cycle test and temperature/humidity endurance test of 85°C at 80-85% humidity for 1000 hours.
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