The BPF-2A-500 from Crane Aerospace & Electronics is a Modulator with RF Frequency 10 to 1000 MHz, Carrier Suppression -40 to -35 dBc, Insertion Loss 2 to 4 dB, Amplitude Balance 0.20 to 0.5 dB, Current -15 to 15 mA. Tags: Flat Pack. More details for BPF-2A-500 can be seen below.