The TCD-10-122-75X+ is a surface mount directional coupler designed for 75Ω systems with a nominal coupling of 10 dB across a frequency range of 5 to 1250 MHz. It features a mainline loss of 1.7 dB maximum at the upper end of the band and maintains directivity above 8 dB throughout the range. The device is housed in an AT1521 case, measuring 3.81 mm × 3.81 mm × 0.33 mm, and weighs 0.15 grams. It operates reliably from -40°C to +85°C and supports input power up to 1.0 W. The coupling flatness is within ±0.6 dB, and return loss exceeds 16 dB on all ports. External 75Ω termination is required at the coupled port. The unit is aqueous washable and compliant with US Patent 6,140,887.
10 dB SMT Directional Coupler, 5 - 1250 MHz, 75Ω
RF Directional Coupler CATV, Cellular 5MHz ~ 1.25GHz 10 ± 0.5dB 500mW 6-SMD (5 Leads), Flat Lead
RF Directional Coupler CATV, Cellular 5MHz ~ 1.25GHz 10 ± 0.5dB 500mW 6-SMD (5 Leads), Flat Lead
| Mini-Circuits | DigiKey | Quarktwin Technology Ltd. | |
|---|---|---|---|
| Product Category | RF Couplers | RF Couplers | RF Couplers |
| Product Number | TCD-10-122-75X+ | 3157-TCD-10-122-75X+TR-ND | TCD-10-122-75X+ |
| Product Name | 10 dB SMT Directional Coupler, 5 - 1250 MHz, 75Ω | RF Directional Coupler | RF Directional Coupler |
| RF Coupler Type | Uni-Directional | Uni-Directional | Uni-Directional |
| Package Type | Surface Mount | Surface Mount; 6-SMD (5 Leads), Flat Lead | |
| Impedance | 75 ohms | ||
| Frequency Range | 5.00 to 1250.00 MHz | 5.00 to 1250.00 MHz | 5.00 to 1250.00 MHz |
