## Technical Overview of SFECK10M7KA00S0-R0 The **SFECK10M7KA00S0-R0** is a high-performance **Ceramic Filter** manufactured by Murata Electronics. It belongs to the **SFECV/SFECK series**, which are specifically designed for Surface Mount Technology (SMT) applications in FM receivers. --- ### 1. Key Technical Specifications | Feature | Specification | | :--- | :--- | | **Manufacturer** | Murata Electronics | | **Center Frequency (fc)** | 10.7 MHz | | **3dB Bandwidth** | 110 kHz ± 30 kHz | | **Insertion Loss** | 6.0 dB max (at minimum loss point) | | **Selectivity** | 25 dB min (at ± 300 kHz) | | **Input/Output Impedance** | 330 $\Omega$ | | **Package Type** | SMD (Surface Mount Device) | | **Dimensions** | 4.5 x 3.2 x 1.4 mm | --- ### 2. Core Functional Components This part functions as a band-pass filter based on the piezoelectric effect of ceramics. Its internal operation involves: 1. **Piezoelectric Element:** Converts electrical signals into mechanical vibrations and back into electrical signals. 2. **Frequency Selection:** Only signals near the 10.7 MHz resonant frequency pass through with minimal attenuation; signals outside the bandwidth are suppressed. 3. **Low Profile Design:** The "K" in the series name often denotes a specific height or performance profile optimized for compact consumer electronics. --- ### 3. Application Areas This component is primarily used in the **Intermediate Frequency (IF)** stage of radio communication equipment. * **FM Radios:** Used to extract the 10.7 MHz IF signal and filter out noise from adjacent channels. * **AV Receivers:** High-fidelity audio equipment requiring precise frequency separation. * **Automotive Audio:** Tuner units in vehicles where heat resistance and vibration stability are required. * **Wireless Communication:** Any system utilizing standard 10.7 MHz IF architecture. --- ### 4. Part Number Breakdown The suffix and prefix provide specific manufacturing data: * **SFECK:** Series identifier (Ceramic Filter for FM, thin type). * **10M7:** Nominal center frequency (10.7 MHz). * **KA00:** Specific characteristics related to bandwidth and attenuation curves. * **R0:** Packaging code (usually indicating Tape & Reel for automated assembly). ---