Murata Announces ZRB series Monolithic Ceramic Capacitors With Interposer Substrate

The latest electronic devices tend to generate less noise. Therefore, “squealing” caused by capacitor vibration (not easily audible before) has emerged as an issue in designing power supply circuits for various applications such as laptop PCs, smartphones, and digital still cameras. In June 2012, Murata introduced its MLCC with an interposer substrate to the market as one of the products with countermeasures for squealing. The ZRA series uses an interposer substrate to suppress the vibration of capacitors and thus minimizes its effect imposed upon main circuit boards. Since the ZRA series uses an interposer substrate whose LW size is larger than that of MLCC, there has been a problem regarding its location on a circuit board, particularly when there are short distances between components on boards to save space and provide a smaller footprint.

To resolve this problem, Murata has newly developed an MLCC with an interposer substrate (ZRB series) of the same LW size as that of an MLCC by improving technology for mounting MLCC on a small substrate. This development makes it possible to replace previous MLCCs with the new MLCC with an interposer substrate (ZRB series) that provides countermeasures for squealing without having to modify the printed circuit board design.

Features
-The MLCC is mounted on an interposer substrate that enables it to reduce the squealing level.
-The size of this product is the same as that of previous MLCC. Therefore, currently used MLCC can be replaced with this new product without having to modify the printed circuit board design.

Applications
Mobile devices such as smartphones, PCs, digital still cameras and audio/visual devices such as television receivers

Electric characteristics
Temperature characteristics: R6 (±15%)
Rated voltage: 6.3Vdc
Capacitance: 22µF
Capacitance deviation: M (±20%)