The **SFECF10M7DF00-R0** is a high-performance **Ceramic Discriminator/Filter** manufactured by Murata Electronics. It is primarily used in FM radio receivers for demodulation and signal filtering at the Intermediate Frequency (IF) stage. --- ### ## Technical Specifications Below are the primary electrical characteristics for this component: | Parameter | Specification | | :--- | :--- | | **Center Frequency (f0)** | 10.700 MHz | | **3dB Bandwidth** | 150 kHz ± 50 kHz | | **Insertion Loss** | 6.0 dB max | | **Resonant Impedance** | 330 $\Omega$ | | **Package Type** | Surface Mount (SMD) | | **Dimensions** | 3.45 x 3.10 x 1.40 mm | | **Operating Temperature** | -20°C to +80°C | --- ### ### Key Features and Internal Structure The "SFECF" series utilizes Murata's proprietary piezoelectric ceramic technology. The part is designed to act as a resonator that converts frequency variations into voltage variations (FM Demodulation). 1. **Monolithic Construction:** It uses a single-wafer ceramic structure to ensure high stability against mechanical vibration and temperature fluctuations. 2. **Compact Footprint:** The small SMD form factor is optimized for high-density mobile devices and automotive tuners. 3. **Flat Group Delay:** This specific model is engineered for low distortion, which is critical for high-fidelity FM audio reproduction. --- ### ### Typical Application Circuit In a standard FM receiver circuit, the SFECF10M7 is typically connected to an FM IF IC (Integrated Circuit). ```c // Conceptual signal flow for an FM Receiver [Antenna] -> [RF Amp] -> [Mixer] -> [10.7MHz IF Filter] -> [SFECF10M7 Discriminator] -> [Audio Out] ``` --- ### ### Part Number Breakdown * **SFECF**: Series code for SMD Ceramic Filters/Discriminators. * **10M7**: Nominal Center Frequency (10.7 MHz). * **DF00**: Designates specific bandwidth and technical tolerance characteristics. * **R0**: Packaging code (usually refers to Tape & Reel). * **V01**: Version or revision identifier.