The QLH2000M3X7ECS from Q Microwave is a RF High Pass Filter with Frequency 2000 to 6000 MHz, Insertion Loss 1.5 dB, Power 0.1 W, Rejection 40 dBc @ 1000 MHz, Return Loss 10 dB. Tags: Lumped Component Filter. More details for QLH2000M3X7ECS can be seen below.