The 2450BM14A0002T is a Balun Transformer, 2.4 to 2.5GHz frequency with SMD mounting and 2dB insertion loss. This impedance-matched-balun with integrated LPF optimized for Nordic: nRF24L01, nRF24L01+, nRF24LE1, nRF24LU1, nRF24AP2 and nRF8001 chipsets.