Import Band Reject 870~880mhz Rf Band Stop Filter — Buy in wholesale FOB from Supplier in China

The UIYBSF247100A870T880NF from Uiy Inc. is a cavity band-stop filter designed to suppress signals between 870 MHz and 880 MHz while maintaining low insertion loss in adjacent passbands. Its specified stopband attenuation reaches 40 dB minimum, with passband coverage extending from DC to 860 MHz and from 885 MHz to 2500 MHz. The unit handles continuous power levels up to 100 W and employs an N-type female connector for RF interface.

Constructed with precision-machined cavity resonators, this filter achieves a voltage standing wave ratio of 2.0:1 or better across its operational range. Insertion loss in the passband is rated at 2.0 dB maximum, a figure that reflects typical trade-offs in cavity-based designs where steep rejection skirts are prioritised over absolute passband efficiency. The operating temperature span of -20 degrees C to +65 degrees C suits controlled indoor environments such as base stations, broadcast transmitters, and test laboratories where thermal extremes are managed.

This filter targets cellular network operators, defence contractors, and RF equipment integrators who need to isolate narrow interference bands within broader spectrum allocations. The 870 to 880 MHz rejection window aligns with GSM-R and some LTE guard bands, making it relevant for railway communications and co-location mitigation. Buyers should confirm with Uiy Inc. whether the 100 W power rating applies to continuous or peak conditions, and whether alternative connector configurations or flange mounts are available for rack installations.

Uiy Inc. is headquartered in Shenzhen, Guangdong Province, at No. 8, Lane 1, Xintun East Zone, Longgang District, placing it within one of China's densest electronics manufacturing corridors. The company holds a harbor trust tier on the platform, and its response rate and average response hours both register at zero, which indicates no recorded enquiry activity rather than any assessment of capability. Buyers should treat this as an absence of verification data and initiate direct contact to gauge responsiveness and technical support depth.

The listing presents a single RF filter model with explicit electrical parameters but no broader catalogue, factory certification, or quality management system details. Uiy Inc. does not state its year of establishment, production capacity, or whether it operates as an OEM, ODM, or distributor. Importers are advised to request a company profile, ISO 9001 or equivalent certification status, and sample evaluation terms before committing to volume orders.