The **SFECF10M7DF00S0-R0** is a high-precision surface-mount (SMD) ceramic filter manufactured by **Murata Electronics**. It is primarily designed for the intermediate frequency (IF) stage in FM receivers and communication equipment. --- ### 1. Technical Specifications The part belongs to the **SFECF series**, which is known for its compact size and high reliability. | Parameter | Value / Specification | | :--- | :--- | | **Center Frequency (fo)** | 10.700 MHz | | **3dB Bandwidth** | 150 kHz ± 40 kHz | | **20dB Bandwidth** | 380 kHz (Max) | | **Insertion Loss** | 5.5 dB ± 2.0 dB | | **Input/Output Impedance** | 330 $\Omega$ | | **Package Type** | SMD (Surface Mount Device) | | **Operating Temperature** | -20°C to +80°C | --- ### 2. Functional Description This component acts as a **Band-Pass Filter (BPF)**. Its primary job is to allow signals within a specific frequency range (centered at 10.7 MHz) to pass through while attenuating (blocking) signals outside that range. #### Key Features: * **Piezoelectric Technology:** It utilizes the energy trap of the thickness shear vibration mode of piezoelectric ceramics. * **Miniaturization:** Its low profile and small footprint are ideal for modern portable electronics where PCB space is limited. * **Stability:** Offers excellent temperature characteristics and high mechanical strength. --- ### 3. Application Areas These filters are standard in radio frequency (RF) design, specifically for: 1. **FM Radios:** Used in the IF (Intermediate Frequency) stage to select the desired station and reject noise. 2. **Wireless Communication:** Employed in cordless phones and data transceivers. 3. **AV Equipment:** Found in home theater receivers and automotive infotainment systems. --- ### 4. Part Number Breakdown While Murata part numbers are complex, the code "10M7" explicitly refers to the **10.7 MHz** frequency, which is the global standard for FM radio IF stages. The "R0" suffix typically denotes the packaging style (Tape and Reel).