The FMFL026 is a five-section low-pass filter with a passband from DC to 400 MHz. It exhibits a maximum insertion loss of 1 dB and a maximum passband VSWR of 1.5:1. The filter provides excellent stopband attenuation with a minimum rejection of 40 dB at 600 MHz and 60 dB at 800 MHz. It is rated for 10 Watts of input power, has a nominal impedance of 50 Ohms, and utilizes SMA female connectors. This combination of performance characteristics makes it a reliable choice for general-purpose RF and microwave filtering applications.