The BPF-2A-2250 from Crane Aerospace & Electronics is a Modulator with RF Frequency 1500 to 2500 MHz, Carrier Suppression -30 dBc, Insertion Loss 5 to 6 dB, Amplitude Balance 0.25 to 1 dB, Current -15 to 15 mA. Tags: Flat Pack. More details for BPF-2A-2250 can be seen below.