The **SFSCE10M7WF03-R0** is a specific electronic component manufactured by **Murata Electronics**. It belongs to the category of **Ceramic Filters**, specifically designed for intermediate frequency (IF) stages in communication equipment. --- ### 1. Key Technical Specifications | Parameter | Specification | | :--- | :--- | | **Manufacturer** | Murata Electronics | | **Component Type** | Ceramic Filter (SFSC Series) | | **Center Frequency** | 10.7 MHz | | **Bandwidth (3dB)** | 110 kHz ± 30 kHz | | **Insertion Loss** | 6.0 dB max | | **Input/Output Impedance** | 330 $\Omega$ | | **Package Type** | Surface Mount (SMD) | | **Operating Temp Range** | -20°C to +80°C | --- ### 2. Functional Description The SFSCE10M7WF03-R0 utilizes the **piezoelectric effect** of ceramics to provide high selectivity in radio frequency circuits. Its primary roles include: * **Frequency Selection:** It allows the 10.7 MHz IF signal to pass while suppressing unwanted noise and adjacent channel interference. * **Signal Shaping:** It narrows the signal bandwidth to improve the signal-to-noise ratio (SNR) in FM receivers. * **Impedance Matching:** Designed to interface with standard 330-ohm intermediate stages in transistor or IC-based circuits. ### 3. Application Areas This part is commonly found in high-fidelity (Hi-Fi) audio equipment and communication devices, including: 1. **FM Radio Receivers:** Used in the IF stage for stereo FM tuners. 2. **Wireless Data Transmission:** Low-speed data modules requiring stable frequency filtering. 3. **Consumer Electronics:** Smart home devices or older cordless phones that utilize the 10.7 MHz standard. ### 4. Part Number Breakdown (Murata Standard) * **SF**: Surface Mount Filter. * **CE**: Product Series (Chip Ceramic Filter). * **10M7**: Center Frequency (10.7 MHz). * **WF03**: Specific bandwidth and characteristic code. * **R0**: Packaging code (usually refers to Tape and Reel). ---