The QLH500M4X7ECS from Q Microwave is a RF High Pass Filter with Frequency 500 to 2000 MHz, Insertion Loss 1.5 dB, Power 0.1 W, Rejection 40 dBc @ 250 MHz, Return Loss 10 dB. Tags: Lumped Component Filter. More details for QLH500M4X7ECS can be seen below.