April 8, 2010
TDK-EPC, a group company of the TDK Corporation, introduces the worlds first thin-film common mode filter (TCE1210 from TDK) with both high-speed differential transmission common mode noise suppression and ESD protection in a single component. Mass production is scheduled to begin in April 2010.
The new filter is the same size as existing TDK common mode filters (1.25 × 1.00 × 0.60 mm3), but using the proprietary thin-film circuit formation and materials technologies, TDK successfully added an ESD suppressor function to the EMI function already present in the internal structure of existing filters. As a result, an additional varistor for ESD suppression is no longer needed. For manufacturers this means a reduction in the number of components and their mounting area, thus contributing to the further miniaturization of mobile devices.
The new filters cutoff frequency is 5.0 GHz, the common mode impedance is 90 Ω ±25 Ω, rated current is 100 mA, and ESD immunity complies with the IEC 61000-4-2 international surge standards. In addition, the filters low parasitic capacitance has nearly no effect on the impedance characteristic (TDR measurement), making this filter perfect for use with high-speed, high-volume interfaces such as HDMI, USB 3.0, and SATA in consumer electronics applications.
*As of April 2010, according to TDK investigations.
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