The B8510 RF Multiplexer is a versatile component used in RF and wireless applications. It is a type of duplexer that allows for simultaneous transmission and reception of signals in different frequency bands. With frequency bands ranging from 1.922GHz to 2.167GHz, this multiplexer provides reliable signal routing and isolation. The low band attenuation ranges from 44.00dB to 51.00dB, while the high band attenuation ranges from 50.00dB to 80.00dB, ensuring efficient signal filtering. The B8510 RF Multiplexer is surface mountable and comes in a 9-SMD, no lead package. It is an obsolete product manufactured by Qualcomm.