The **SFECF10M7GA00-R0** is a high-performance **Ceramic Filter** manufactured by Murata Electronics. It is specifically designed for FM intermediate frequency (IF) stages in radio receivers. --- ## 1. Technical Specifications Below are the primary electrical and physical characteristics of the component: | Feature | Specification | | :--- | :--- | | **Center Frequency (fc)** | 10.700 MHz | | **3dB Bandwidth** | 280 kHz ± 50 kHz | | **Insertion Loss** | 3.0 dB max (at minimum loss point) | | **Stop Band Attenuation** | 30 dB min (at fc ± 300 kHz) | | **Input/Output Impedance** | 330 $\Omega$ | | **Operating Temperature** | -20°C to +80°C | | **Package Type** | Surface Mount (SMD) | --- ## 2. Key Features and Construction * **CERALOCK® Technology:** This part belongs to Murata's ceramic filter family, utilizing the piezoelectric effect of ceramics to achieve high selectivity. * **Small Form Factor:** The "SFECF" series features a low-profile, small-footprint design suitable for high-density PCB mounting in modern portable electronics. * **High Stability:** It offers excellent temperature stability and aging characteristics, ensuring the radio frequency remains locked over time. * **Tape and Reel Packaging:** The "-R0" suffix indicates that the part is supplied on a 180mm reel for automated pick-and-place assembly. --- ## 3. Applications The SFECF10M7GA00-R0 is primarily used in communication equipment where space is at a premium: 1. **Consumer Electronics:** FM radio tuners in smartphones, portable radios, and home stereo systems. 2. **Automotive:** Car audio head units for FM signal processing. 3. **Communication Modules:** Wireless receivers requiring narrow-band filtering at the 10.7 MHz IF stage. --- ## 4. Typical Connection Diagram In a standard circuit, the filter is placed between the mixer output and the IF amplifier input. ```text [ Mixer Output ] ---> [ Input Pin (1) ] | [ Ceramic Filter ] | [ Ground Pin (2) ] <--- [ Ground ] | [ IF Amplifier ] <--- [ Output Pin (3) ] ``` ---