The 5MB/C-500/T40-S4G from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 478.25 to 521.75 MHz, Bandwidth 43.5 MHz (3dB), Center Frequency 500 MHz, Insertion Loss 2.9 dB, Upper Rejection 40 dB. Tags: Lumped Component Filter. More details for 5MB/C-500/T40-S4G can be seen below.