## Understanding the CSTCG27M0V53-R0 The **CSTCG27M0V53-R0** is a high-frequency **Ceramic Resonator** manufactured by Murata Electronics. It belongs to the CERALOCK® family, which are components used to generate stable clock signals for microprocessors and other digital circuits. --- ### 1. Key Technical Specifications The following table outlines the primary electrical and mechanical characteristics of this component: | Parameter | Specification | | :--- | :--- | | **Nominal Frequency** | 27.000 MHz | | **Frequency Tolerance** | ±0.5% | | **Frequency Stability** | ±0.3% (over temperature) | | **Operating Temperature** | -20°C to +80°C | | **Load Capacitance** | 15 pF (Built-in) | | **Package Type** | SMD (Surface Mount Device) | | **Dimensions** | 2.0 x 1.3 mm | --- ### 2. Core Features * **Built-in Load Capacitors:** Unlike standard quartz crystals that require external capacitors to form an oscillation circuit, this "CERALOCK" part has the capacitors integrated into the package. This saves PCB space and reduces component count. * **Small Form Factor:** The "CG" series is designed for miniaturization, making it ideal for portable electronics. * **High Stability:** It offers high frequency accuracy without the need for frequency adjustment circuits. --- ### 3. Part Number Breakdown Understanding the Murata naming convention helps in identifying the part's specifics: 1. **CST**: Product Series (Ceramic Resonator with built-in capacitors). 2. **CG**: Small SMD Type. 3. **27M0**: Nominal Frequency (27.000 MHz). 4. **V**: Frequency temperature characteristics. 5. **53**: Individual specification code (Load capacitance/standard). 6. **R0**: Packaging (Plastic Taping - 180mm Reel). --- ### 4. Typical Applications This component is commonly found in circuits where a stable timing reference is required but the extreme precision of a crystal oscillator is not strictly necessary: * **USB peripherals:** Generating clock signals for data transfer. * **Microcontrollers:** Providing the "heartbeat" for MCUs in consumer electronics. * **Audio/Video equipment:** Synchronizing digital signals. ---