Mini-Circuits 1:1.33 CORE & WIRE Transformer, 1 - 400 MHz, 75Ω TRS1.33-1T-75+

The TRS1.33-1T-75+ is a surface-mount RF transformer designed for impedance matching and balanced-to-unbalanced conversion in the 1 to 400 MHz range, with a 75Ω to 100Ω impedance ratio. It features a case style AT577-1 with dimensions of 5.08 × 5.08 × 3.81 mm and a weight of 0.15 grams. Insertion loss is typically 0.4 dB at mid-band and increases to 0.6 dB at 400 MHz. Amplitude unbalance is within 1.37 dB and phase unbalance within 3.35 degrees across the band. It offers return loss better than 20 dB above 100 MHz, operates from -40°C to 85°C, handles up to 0.25 W RF power, and supports 30 mA DC current. The transformer is DC isolated and uses a 6-pin configuration with pins 5 unused.