The part number **DM10CD102KO3-RHR02** refers to a high-precision, high-reliability **Silver Mica Capacitor**. These capacitors are known for their exceptional stability, low loss, and reliability in RF (Radio Frequency) and precision timing circuits. --- ### 1. Technical Specification Breakdown Based on standard industry nomenclature for Cornell Dubilier (CDE) or similar mica capacitor manufacturers, here is the technical breakdown: | Parameter | Specification | Description | | :--- | :--- | :--- | | **Series** | DM10 | Standard dipped mica case size (approx. 9.1 x 9.1 mm). | | **Capacitance** | 102 | 1,000 pF (1.0 nF). | | **Tolerance** | K | ±10% (Standard tolerance). | | **Voltage Rating** | O3 | Typically represents 300V or 500V DC (Case specific). | | **Characteristic** | C / D | High stability, low temperature coefficient. | | **Operating Temp** | -55°C to +125°C | Military/Industrial grade range. | --- ### 2. Key Physical Features * **Dielectric Material:** Silver Mica. Unlike ceramic, mica is a natural mineral that does not "age" significantly, meaning the capacitance remains constant over decades. * **Coating:** Epoxy dipped for moisture and environmental protection. * **Leads:** Usually copper-clad steel with tin plating for excellent solderability. --- ### 3. Typical Applications Because of the inherent stability of the mica dielectric, this part is used in: 1. **RF Oscillators:** Maintaining a steady frequency despite temperature changes. 2. **Filter Networks:** Used in high-Q filters where low energy loss (low dissipation factor) is required. 3. **Snubber Circuits:** Handling high dV/dt (voltage spikes) in low-power pulse applications. 4. **Calibration Equipment:** Serving as a reliable reference standard. --- ### 4. Advantages vs. Other Capacitors * **Stability:** Much higher than Class 2 Ceramics (X7R/Y5V). * **Precision:** Unlike electrolytic capacitors, these have very tight tolerances. * **Low Inductance:** The "DM" series design minimizes internal inductance, making them suitable for high-frequency use. ---