Abstract

▷ MLCCs offer high-capacitance in small sizes and are characterized by their high reliability and long lifespan. However, they are vulnerable to moisture and cracking that may result from external environmental factors. Moreover, piezoelectric effects can lead to the occurrence of noises when voltage is applied to the MLCC. In response, Samsung Electro-Mechanics has developed the MFC (Molded Frame Capacitor) in which metal frames and moldings are applied, to overcome the shortcomings of standard MLCCs.

MFC Structure with Metal Frame 

▷ MFC Structures with metal frames prevent cracking. Usually, PCB bending from external mechanical stress induces MLCC cracking. However, when metal frames are applied, the MLCC is no longer directly impacted by the bending stress.

MFC Structure with Metal Frame & Molding 

▷ Surrounded by moldings, the MFC reduces the piezoelectric effect of the MLCC. When an AC voltage signal is applied to a standard MLCC, the polarizations within the dielectric are moved by the electric field and generate small vibrations. These MLCC vibrations may lead to vibrations on the PCB surface, which can cause acoustic noises. The MFC’s metal frame and moldings can reduce the vibration caused by the piezoelectric effect of MLCCs, which is an appropriate solution for enhancing acoustic noises.

MFC’s molding resists environmental stress and prevents reliability degradation caused by Humidity, Dust, and Dent.

▷ MFC’s moldings have a high tolerance to external environmental stress, preventing reliability degradation from humidity, dust, and dent. Due to site costs and the need for a stable power supply, servers, network equipment, and communication devices are often located in outlying areas. When these devices are exposed to the elements for extended periods, their reliability can degrade due to factors such as dust and humidity. Samsung Electro-Mechanics’ MFC stands out with its molding structure, preventing environmental degradation. 

The Growing Adoption of 48V Power 

▷ The importance of 48V power lines is increasing along with the growth of AI data centers and uninterruptible power supply (UPS) markets. The established 12V power lines, commonly used in data centers, may experience current loss and heat generation issues in environments with high power consumption. 48V power lines are a faster-growing alternative that offer higher efficiency and greater power density. Samsung Electro-Mechanics presents you the 100V MFC line-up optimized for 48V environments.

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