The B279KB1S from Knowles is a Bandpass Filter with passband from 27.5 to 28.35 GHz. It has a passband insertion loss of less than 4 dB and provides more than 30 dB of rejection above and below the passband. The filter has been specifically designed to operate in the 5G band and utilizes Dielectric Laboratories’ low-loss temperature stable materials that results in minimal performance variation with respect to temperature. It offers shielding to prevent external field disturbance and is MSL-1 certified according to moisture sensitivity level (MSL) standards. This bandpass filter is available in a surface-mount package that measures 0.29 x 0.08 x 0.07 inches and has an operating temperature range from -55°C to +125°C.
