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Common Mode Filter Integrates EMI and ESD Protection

Wed, 04/14/2010 - 5:44am
filter w EMI ESD proTDK-EPC introduced what it asserts is the world’s 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. The component measures 1.25 mm × 1.00 mm × 0.60 mm. Using the proprietary thin-film circuit formation and materials technologies, the company 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. The new filter’s cutoff frequency is 5.0 GHz;, the common mode impedance is 90 ? ±25 ?; rated current is 100 mA, and ESD immunity complies with the IEC 61000-4-2 international surge standards. In addition, the filter’s low parasitic capacitance has nearly no effect on the impedance characteristic (TDR measurement), making this filter appropriate for use with high-speed, high-volume interfaces such as HDMI, USB 3.0, and SATA in consumer electronics applications.

TDK-EPC
847-803-6100, www.tdk.com
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