Mini-Circuits 20 dB SMT Directional Coupler, 40 - 1200 MHz, 75Ω TCD-20-4-75X+

The TCD-20-4-75X+ is a surface mount RF directional coupler designed for applications in the CATV range, operating from 40 to 1200 MHz. It features a wide frequency range with excellent coupling flatness of ¬±0.5 dB typical across its operational bands. The mainline loss varies from 0.5 dB to 0.9 dB at lower frequencies and increases slightly at higher frequencies, reaching up to 1.1 dB. The coupling levels are specified at approximately 21 dB for 40-500 MHz, 20 dB for 500-870 MHz, and 19.5 dB for 870-1200 MHz, with directivity values ranging from 14 dB to 23 dB depending on the frequency. The coupler is rated for an input power of 1.0 W and has a VSWR of 1.15:1 across the entire frequency range. It operates within a temperature range of -40¬8C to 85¬8C and is compatible with existing footprints for similar products, making it a suitable choice for engineers looking for reliable performance in RF applications.