The part number **DM05CE151DO3-SA-R02** refers to a high-precision **Mica Capacitor**, typically manufactured by companies like Cornell Dubilier (CDE) or specialized military/industrial suppliers. Mica capacitors are renowned for their stability, low loss, and high reliability in RF (Radio Frequency) applications. --- ### 1. Technical Specifications Breakdown The alphanumeric code provides specific details about the component's physical and electrical characteristics: | Parameter | Specification | Description | | :--- | :--- | :--- | | **Type** | Mica Capacitor | Uses Muscovite mica as the dielectric material. | | **Capacitance** | 150 pF | "151" indicates 15 followed by one zero (150). | | **Tolerance** | ±0.5 pF or ±0.5% | "D" usually signifies a tight tolerance for precision. | | **Voltage Rating** | 300V - 500V | Dependent on the specific series (Standard DM05 is often 500V). | | **Case Size/Style** | DM05 (Miniature) | A small, dipped phenolic coated package. | | **Termination** | Radial Leads | Solder-coated copper or copper-clad steel leads. | --- ### 2. Key Features * **Temperature Stability:** Extremely low capacitance change over a wide temperature range (typically -55°C to +125°C). * **High Q Factor:** Very low dissipation factor, making it ideal for high-frequency filtering and tuning. * **Non-Inductive:** Designed to minimize internal inductance. * **Longevity:** Mica is an inert mineral; these capacitors do not dry out or degrade like electrolytic or some ceramic types. --- ### 3. Typical Applications Mica capacitors are used where precision and stability are non-negotiable: 1. **RF Oscillators:** Maintaining frequency stability in radio transmitters. 2. **Filter Networks:** High-Q filters for telecommunications. 3. **Pulse Circuits:** Handling high-speed voltage transitions without degradation. 4. **Calibration Equipment:** Used as standards in laboratory measurement tools. --- ### 4. Sample Circuit Integration In a simple RF resonant circuit (LC circuit), this part would be used alongside an inductor to set a specific frequency: ```cpp // Frequency Calculation Formula // f = 1 / (2 * pi * sqrt(L * C)) double capacitance = 150e-12; // 150 pF double inductance = 2.2e-6; // 2.2 uH (example) // Resulting frequency would be approx 8.76 MHz ```