The part number **DM10CD151KO3-RHR02** refers to a high-precision **Mica Capacitor**. These components are known for their extreme stability, high reliability, and excellent performance in Radio Frequency (RF) applications. --- ## 1. Technical Specifications Breakdown The following table outlines the specific electrical characteristics of this component: | Characteristic | Specification | Description | | :--- | :--- | :--- | | **Capacitance** | 150 pF | The energy storage capacity. | | **Tolerance** | ±10% (K) | The allowable variance from the rated capacitance. | | **Voltage Rating** | 500V DC | The maximum continuous voltage the part can handle. | | **Dielectric Material** | Silver Mica | Provides excellent temperature stability and low loss. | | **Mounting Type** | Through-Hole | Radial leaded configuration for PCB insertion. | | **Operating Temp** | -55°C to +125°C | Designed for extreme industrial/military environments. | --- ## 2. Part Number Deciphering While manufacturers (such as CDE - Cornell Dubilier) have slight variations, the nomenclature generally follows this logic: * **DM10**: Refers to the physical case size and style (Standard Dipped Mica). * **CD**: Designates the temperature coefficient and characteristic. * **151**: The capacitance code. The first two digits (15) are significant figures, and the third (1) is the multiplier ($15 \times 10^1 = 150$ pF). * **K**: The tolerance code (K = ±10%). * **O3**: Typically refers to the working voltage (500V). * **RHR02**: Usually a manufacturer-specific suffix indicating RoHS compliance, packaging (like ammo pack or bulk), or specific lead forming. --- ## 3. Key Advantages of Mica Capacitors Mica capacitors like the DM10 series are chosen over ceramic or electrolytic types for specific reasons: 1. **High Precision:** They maintain their value over long periods (very low aging rate). 2. **Low Dissipation Factor:** They exhibit very low losses at high frequencies, making them ideal for RF oscillators and filters. 3. **Temperature Stability:** The capacitance changes very little as the temperature fluctuates. 4. **Voltage Resistance:** They are robust against high-voltage spikes compared to similar-sized ceramic capacitors. --- ## 4. Common Applications * **RF Tuning Circuits:** Used in radio transmitters and receivers. * **Pulse Circuits:** High-speed handling of energy bursts. * **Resonant Filters:** Providing sharp frequency cut-offs. * **Audio Equipment:** Used in high-end amplifiers to maintain signal purity.