The TLBF-640M-20M-L from Talent Microwave Inc is a Band Pass Filter with Frequency 630 to 650 MHz, Bandwidth 20 MHz, Center Frequency 640 MHz, Insertion Loss 4 dB, Upper Rejection 50dB@640±80 MHz. Tags: Module with Connectors. More details for TLBF-640M-20M-L can be seen below.