TDK DEA RF Filters are designed using Low Temperature Co-fired Ceramic (LTCC) and create a resonance frequency allowing certain frequency ranges to pass while blocking, or attenuating, other unwanted frequency ranges. TDK DEA RF Filters include high and low pass filters, as well as band pass filters with frequencies ranging from 5MHz to 8GHz with variation in shape and size, terminal structure, and specification values.

TDK filters are used in products with a wide variety of wireless communications such as WLAN, BT, cellular, GPS, ZigBee, Wi-MAX and in both licensed and unlicensed frequencies. TDK works with chipset partners to design custom matched filters for specific chipsets as well as offering standard general use filters. TDK designs filters for different end products whether for low IL (energy saving) for battery operated devices and high attenuation/performance products for devices with a power connection