Balun Transformer, Network Transformers, SMD Couplers manufacturer / supplier in China, offering 75Ω 16dB Directional Coupler 5-1250MHz Yb7f-617PT-1038-C252, RF Directional Coupler 75Ω 18dB Directional Coupler 5-1200MHz, Toroidal Inductor Coils for Speaker Use., Radio etc Use. and so on.