609-2450FM07A0029T 2.45GHz Impedance Filter Johanson Technology 609-2450FM07A0029T 2.45GHz Impedance Filter is a low pass filter optimized for Nordic's Chipset nRF52832-QFAA, nRF52832-QFAB with 2400-2500MHz frequency, 0.8 dB max. insertion loss, and 10 dB min return loss. The filter has a 50Ω output impedance and 2W max. (CW) power capacity.