The **SFECF10M7FF00S0-R0** is a specific surface-mount (SMD) ceramic filter manufactured by **Murata Electronics**. It belongs to the **SFECF** series, which is primarily used for intermediate frequency (IF) filtering in FM broadcasting and communication equipment. --- ### 1. Technical Specifications Below are the key electrical and physical parameters for this component: | Parameter | Specification | | :--- | :--- | | **Nominal Center Frequency** | 10.700 MHz | | **3dB Bandwidth** | 230 kHz ± 50 kHz | | **Insertion Loss** | 3.0 dB to 4.5 dB (max) | | **Input/Output Impedance** | 330 $\Omega$ | | **Operating Temperature** | -20°C to +80°C | | **Mounting Type** | Surface Mount (SMD) | | **Package Dimensions** | 3.45 x 3.10 x 1.40 mm | --- ### 2. Part Number Breakdown The alphanumeric code follows Murata’s standard naming convention for ceramic filters: * **SFE**: Ceramic Filter for FM. * **CF**: Series name (Flat type, small SMD). * **10M7**: Frequency (10.7 MHz). * **FF00**: Specific bandwidth and characteristic code (standard FM 230kHz). * **S0**: Design modification code. * **R0**: Packaging code (usually indicates Plastic Taping/Reel). --- ### 3. Key Functions & Features * **Selectivity:** The primary role of this part is to allow only the desired 10.7 MHz signal to pass through while rejecting noise and adjacent channel interference. * **Miniaturization:** Its small SMD footprint is designed for modern portable electronics where space is at a premium. * **Stability:** Ceramic filters are highly stable over temperature fluctuations compared to older LC (Inductor-Capacitor) circuits. * **No Adjustment Needed:** Unlike variable inductors, these are "tuned for life" and do not require manual calibration during assembly. --- ### 4. Typical Applications This component is found in the "IF Section" of radio receivers. 1. **Consumer Electronics:** FM radio tuners in car stereos, home theater receivers, and portable radios. 2. **Communication Devices:** Cordless phones and low-power wireless transceivers. 3. **Radio Modules:** Integrated RF modules requiring precise frequency discrimination.