LC Band-pass Filter（RSL-B1200-500SA）

Product Introduction:

The RSL-B1200-500SA 1200 MHz LC band-pass filter is engineered for wideband RF signal selection across the 950–1450 MHz frequency range, with a nominal center frequency of 1200 MHz. It features insertion loss of ≤2.5 dB, passband ripple below 2.2 dB, and VSWR of ≤1.8:1 in a standard 50-ohm RF system. With out-of-band attenuation of at least 67 dB from DC to 650 MHz and from 1750 to 3000 MHz, the filter provides strong suppression of unwanted signals and helps improve overall system signal quality. Its compact 20 × 7.9 × 3.8 mm package and wide −40°C to +70°C operating temperature range support reliable integration into space-limited and industrial-grade RF equipment.

Typical applications for the RSL-B1200-500SA include L-band communication systems, RF transceivers, wireless infrastructure, telemetry and remote-control equipment, navigation and positioning receivers, spectrum monitoring devices, test and measurement instruments, and custom RF front-end modules. Its broad passband is suitable for systems requiring reliable signal transmission or reception between 950 MHz and 1450 MHz, while its high stopband rejection helps reduce adjacent-band interference and protect downstream amplifiers, mixers, and receivers. This compact 1200 MHz band-pass filter is an effective solution for OEM integration, industrial wireless devices, communication terminals, and other B2B applications requiring wide bandwidth, low signal loss, and stable RF performance.

Technical parameters