The **CSTCE10M0G52A-R0** is a ceramic resonator from the CERALOCK® series manufactured by **Murata Electronics**. It is widely used as a cost-effective timing device for microcontrollers and other digital circuits. --- ## 1. Core Technical Specifications | Parameter | Specification | | :--- | :--- | | **Nominal Frequency** | 10.000 MHz | | **Frequency Tolerance** | ±0.5% | | **Frequency Stability** | ±0.2% | | **Operating Temperature** | -20°C to +80°C | | **Built-in Capacitance** | 10 pF (per side) | | **Package / Case** | 1206 (3.2 x 1.3mm) SMD | | **Mounting Type** | Surface Mount | --- ## 2. Key Electronic Features ### A. Integrated Load Capacitors The "G" in the part number indicates that this resonator includes **built-in load capacitors**. This is a significant design advantage: * **Reduced Component Count:** You do not need external 10pF capacitors. * **Space Saving:** Ideal for high-density PCB layouts. * **Ease of Tuning:** The internal capacitors are matched to the ceramic element for optimal oscillation. ### B. Ceramic vs. Quartz Crystal While quartz crystals offer higher precision (ppm level), the **CSTCE10M0G52A-R0** ceramic resonator offers: * **Faster Start-up Time:** Reaches stable oscillation much quicker than a crystal. * **Smaller Size:** Generally more compact than standard crystal packages. * **Lower Cost:** Significantly more economical for consumer electronics. --- ## 3. Pinout and Internal Diagram The device has three terminals (SMD pads): 1. **Input (Pin 1):** Connected to the MCU's XTAL_IN. 2. **Ground (Pin 2 - Center):** Connected to the system ground. 3. **Output (Pin 3):** Connected to the MCU's XTAL_OUT. --- ## 4. Part Number Breakdown Understanding the Murata nomenclature helps in identifying variants: | Code | Meaning | | :--- | :--- | | **CSTCE** | Product Series (SMD Resonator with built-in caps) | | **10M0** | Frequency (10.000 MHz) | | **G** | Frequency Tolerance (G = ±0.5%) | | **52** | Individual Specification (Internal code) | | **A** | Packaging Type (A = Plastic Taping) | | **-R0** | Packaging Quantity (R0 = 3000 pcs/reel) | --- ## 5. Typical Applications * **Microcontrollers:** Providing the clock signal for 8-bit or 32-bit MCUs. * **Peripherals:** USB controllers, optical mice, and keyboards. * **Home Appliances:** Washing machines, microwave ovens, and small electronics where extreme precision (like a RTC) is not required.