The DPX202690DT-4075J1 with RF Diplexers SMD,2x1.25mm RoHS manufactured by TDK is a high-performance CDMA800 / GSM900 (PCS) dual-band diplexer. This part has a wide frequency range of 824-894 MHz for GSM900 (PCS) and 880-960 MHz for CDMA800, and excellent isolation. It is designed to be used in mobile/cellular phones, cellular pagers, and other applications that require communication in two different frequency bands. The part is packaged in a compact, low-profile 2x1.25mm, surface-mount package, and is RoHS compliant.