The **SFECF10M7FF00S0-R0** is a high-precision surface-mount device (SMD) ceramic filter manufactured by **Murata Electronics**. It is specifically designed for the intermediate frequency (IF) stage of FM receivers. --- ### 1. Key Technical Specifications The part number encodes specific electrical characteristics essential for RF circuit design: | Parameter | Value / Specification | | :--- | :--- | | **Center Frequency (fo)** | 10.700 MHz | | **3dB Bandwidth** | 280 kHz ± 50 kHz | | **Insertion Loss** | 3.0 dB max. | | **Stop Band Attenuation** | 35 dB min. (at fo ± 300 kHz) | | **Input/Output Impedance** | 330 $\Omega$ | | **Operating Temperature** | -20°C to +80°C | ### 2. Physical Construction and Package * **Technology:** This is a **Ceramic Discriminator/Filter** that utilizes the piezoelectric effect of ceramics to filter specific frequencies. * **Package Type:** SMD (Surface Mount Device). * **Form Factor:** Part of the "SFECF" series, characterized by a small, flat profile suitable for high-density automated mounting. * **Dimensions:** Typically measures approximately 3.45mm x 3.1mm. ### 3. Functional Role in Electronics In a standard Superheterodyne receiver, this component performs the following roles: 1. **Selectivity:** It allows the desired 10.7 MHz signal to pass while rejecting noise and adjacent channel interference. 2. **Signal Conditioning:** It stabilizes the IF signal before it reaches the demodulator stage. 3. **Size Reduction:** Unlike traditional LC (Inductor-Capacitor) filters, ceramic filters require no tuning and occupy significantly less PCB space. ### 4. Typical Applications * **FM Radios:** Standard frequency filtering in portable and automotive radio tuners. * **AV Equipment:** Home theater receivers and tuners. * **Communication Receivers:** Any low-power wireless receiver operating with a 10.7 MHz IF. --- ### Equivalent Series Comparison ```json { "Series": "SFECF", "Frequency_Stability": "High", "Mounting": "Reflow soldering compatible", "Primary_Material": "Piezoceramic" } ```