Safety certified surface mount MLCC ceramic capacitors for space-constrained mains power designs

Safety certified surface mount MLCC ceramic capacitors for space-constrained mains power designs

New Products |
By Nick Flaherty

Kemet is to launch a range of surface mount device (SMD) safety certified MLCC multilayer ceramic capacitors for use in mains-powered applications.

The CAS series addresses widespread demand for miniaturization without compromising performance by offering higher capacitance, smaller overall size and simplified assembly versus existing leaded disc devices which represent the majority of safety-certified ceramic capacitors currently on the market.

“Until now, safety certified capacitor technology has not kept pace with advances in MLCC technology. Our new CAS range allows engineers to place the essential mains-connected filtering capacitors into smaller spaces, thereby reducing board size. For manufacturing professionals, the benefit is that the new devices are compatible with standard reflow processes, eliminating an additional step in the manufacturing process,” said Reggie Phillips, Senior Product Manager at Kemet.

According to market research, the overall power supply sector is expected to grow to $34.92bn by 2023, with AC-DC power conversion the largest and fastest growing type of power supply owing to its increasingly wide range of uses and applications. 

Commonly used safety certified leaded disc components are bulky compared to the CAS series SMD MLCC devices and are therefore often not suitable for applications with restricted spaces in which filtering circuitry needs to be placed. Leaded disc devices also require pin-through installation into PCBs, a process that is not compatible with standard automated reflow profiles and therefore can result in additional production costs. Safety certified capacitors are used in a wide variety of applications, such as power adapters for mobile devices, industrial power distribution, and electric vehicle power inverters.

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