The 7MB/C-500/U20-S5L from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 486.35 to 513.65 MHz, Bandwidth 27.3 MHz (1dB), Center Frequency 500 MHz, Insertion Loss 4.12 dB, Upper Rejection 40 dB. Tags: Lumped Component Filter. More details for 7MB/C-500/U20-S5L can be seen below.