The 5MB/C-30/T9-18 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 25.3 to 34.7 MHz, Bandwidth 9.4 MHz (3dB), Center Frequency 30 MHz, Insertion Loss 1.26 dB, Upper Rejection 40 dB. Tags: Lumped Component Filter. More details for 5MB/C-30/T9-18 can be seen below.