Development of Industry’s First Thin-Film Common Mode Filter featuring High Speed Differential Transmission Common Mode Noise Suppression and ESD Protection in a Single Component
TDK-EPC has successfully developed the world’s first thin-film common mode filter featuring both high-speed differential transmission common mode noise suppression and ESD (Electrostatic discharge) protection all in a single component. The new filter has a form factor of (1.25 x 1.00 x 0.60 mm3), using the proprietary thin-film circuit formation and materials technologies. Successful addition of ESD suppressor function to the already existing EMI (Electromagnetic interface)function in this newly developed filter has helped to eliminate any needs for additional varistor for ESD suppression, resulting in reduced number of components and mounting area, as well as further miniaturization of mobile devices.
The new filter comes with a cutoff frequency of 5.0 GHz, the common mode impedence of 90 ? ±25 ?, rated current of 100 mA and ESD immunity that complies with the IEC61000-4-2 international surge standards. Furthermore, the new filter’s low parasitic capacitance has almost no effect on the impedance characteristic (TDR measurement), making the new filter ideal for use in high-speed, high-volume interfaces such as HDMI, USB 3.0, as well as SATA in consumer electronics applications. The mass production of this filter has already begun this month.
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[...] TDK-EPC has developed MiniCell Series of pressure sensor transmitter which are available for unsymmetrical measurement ranges from 0 to 500 hPa as well as 0 to 2500 hPa. Furthermore, variants are offered for symmetrical measurement from -500 to +500 hPa and -2500 to +2500 hPa. Differential pressure is a method for measuring pressure difference which is used for such application as barometric altitude measurement. The new sensors measures only 19.6×16.2×11 mm3 incorporating two stainless steel membranes to separate the media. The entire MiniCell variants are equipped with a small oil volume and use a single chip approach for genuine differential pressure measurement, enabling them to show high degrees of accuracy and reproducibility of the measurements. The electronics of the MiniCell Series are hemetically sealed in inert oil inside a ceramic package. Furthermore, the new pressure sensors’ stainless steel membranes and supports make them ideal for use aggressive media. The transmitters’ operating temperatures are from -40 to +140 degrees Celsius. The transmitter supply an analog output voltage of between 0.5 and 4.5 V, at a supply voltage of 5V. The maximum measurement error constitutes to only 1.5% FS (full scale) over the entire temperature range. The range of applications for MiniCell transmitters include process engineering, the chemical, food and water industries as well as aviation measurement systems. source Share and Enjoy: [...]