TCM-M Series Common-Mode Filters

TDK's TCM-M series products are miniaturized thin-film common-mode filters designed for use in mobile devices. With their high common-mode attenuation characteristics, these products reduce intruding noise and improve wireless signal reception sensitivity. Due to the growing multifunctionality of wireless devices such as smartphones, wearables, and other mobile products, noises that are generated inside the devices are deteriorating wireless signals. It is critical to prevent the deterioration of signal reception sensitivity and to prevent external noise that has the potential to cause device malfunction. This series addresses those common challenges.

These common-mode filters offer compact dimensions as small as 0.45 mm x 0.3 mm x 0.23 mm and are mountable in ultra-small spaces. By improving TDK’s proprietary fine pattern technology and optimizing design, the products feature a common-mode attenuation characteristic that equals existing products and a differential transmission characteristic capable of supporting high-speed signal transmission. Thanks to the operating temperature range of -25°C to +85°C, the components are suitable for a wide range of temperature environments. Applications include anti-noise measurements for ultra-high-speed differential transmission lines (MIPI D-PHY, USB2.0, HDMI, and more) in mobile devices and general consumer products such as smartphones and tablet terminals.