TDK Corp. has launched the TCM0403M series of miniature thin-film common-mode filters for mobile devices. The common-mode filters, packaged in a 0403 case size (0.45 × 0.3 × 0.23 mm), is 58% smaller and 56% lighter than previous products thanks to their thin-film processing and materials.
These devices, with high common-mode attenuation, reduce noise and improve wireless signal reception sensitivity. The common mode attenuation at 2.4 GHz is 21 dB, and 28 dB at 5.0 GHz, with a maximum permissible current of 50 mA. Rated voltage is 5 V max. The operating temperature range is -25°C to 85°C.
TDK said by improving its proprietary fine pattern technology and optimizing the design, the common-mode filters deliver a common-mode attenuation characteristic that equals existing products and a differential transmission characteristic capable of supporting high-speed signal transmission. They can be used for high-speed differential interfaces including USB, MIPI, and HDMI, in mobile devices such as wearable devices, smartphones, and tablets.
The space-saving TCM0403M series is available in volume production. Part numbers include the TCM0403M-120-2P-T210, TCM0403M-350-2P-T210, and the TCM0403M-900-2P-T210.
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