The SF2472E from RFM Integrated Device is a Notch Filter with center frequency of 869 MHz. It can handle an input power of up to 33 dBm in pass band and 15 dBm in stop band. The filter has an insertion loss of less than 2.9 dB and attenuation of 24 dB. It is available in an AEC-Q200 Qualified-surface mount package that measures 3.0 x 3.0 mm.