## DM10FD102JO3-RHR02: Electronic Component Analysis The **DM10FD102JO3-RHR02** is a high-precision **Mica Capacitor** manufactured by Cornell Dubilier (CDE). These capacitors are renowned for their stability, high reliability, and low loss at high frequencies. --- ### 1. General Specifications The part number follows a specific nomenclature that defines its physical and electrical characteristics. | Parameter | Specification | | :--- | :--- | | **Capacitance** | 1000 pF (1.0 nF) | | **Tolerance** | ±5% (indicated by 'J') | | **Voltage Rating** | 500 VDC | | **Dielectric Material** | Silver Mica | | **Operating Temperature** | -55°C to +125°C | | **Termination Style** | Radial Leaded | --- ### 2. Key Features Silver mica capacitors like the DM10 series are chosen for specific performance traits that exceed standard ceramic or electrolytic capacitors: * **Extreme Stability:** They exhibit very little change in capacitance over time, temperature, and frequency. * **Low Dissipation Factor:** High "Q" factor, making them ideal for RF (Radio Frequency) applications. * **Tight Tolerance:** The ±5% tolerance ensures predictable performance in tuned circuits. * **Voltage Withstand:** The 500V rating allows for use in power-sensitive or high-voltage signal paths. --- ### 3. Application Areas Due to their precision, these components are typically found in: 1. **RF Oscillators:** Used to set frequencies where drift must be minimized. 2. **Filter Networks:** Essential for sharp cutoff characteristics in radio and audio equipment. 3. **Timing Circuits:** Used where pulse stability is critical. 4. **Aerospace & Defense:** Often utilized in legacy and high-reliability communication hardware. --- ### 4. Part Number Breakdown While manufacturer codes vary slightly, the structure for this CDE part is generally: * **DM10:** Refers to the case size (standard dipped mica dimensions). * **F:** Characteristic code (Temperature coefficient and drift). * **D:** Voltage code (500V). * **102:** Capacitance code (10 + two zeros = 1000pF). * **J:** Tolerance code (±5%). * **O3:** Packaging or lead style variant. * **RHR02:** Specific manufacturing/RoHS compliance or internal revision suffix.