Based on the part number provided, this component belongs to the **CDE (Cornell Dubilier)** mica capacitor series. Specifically, it is a high-precision **Standard Dipped Silver Mica Capacitor**. --- ## 1. Part Number Breakdown The alphanumeric string represents specific physical and electrical characteristics: | Code Segment | Description | Detail | | :--- | :--- | :--- | | **DM** | Case Series | Standard Dipped Mica | | **19** | Case Size | Approx. 11.4 x 11.4 mm | | **C** | Temperature Coefficient | -20 to +100 ppm/°C | | **C** | Voltage Rating | 300 VDC | | **100** | Capacitance Value | 10 pF (First two digits are significant; last is multiplier) | | **D** | Capacitance Tolerance | ±0.5 pF | | **O3** | Temperature Range | -55°C to +125°C | | **ST** | Lead Style | Straight Leads | | **R02** | Packaging/Special | Specific reel or internal manufacturing code | --- ## 2. Technical Specifications This capacitor is designed for high stability and low loss in RF and precision analog circuits. * **Capacitance:** 10 pF * **Tolerance:** ±0.5 pF (High precision) * **Voltage:** 300 Volts DC * **Dielectric Material:** Natural Silver Mica * **Operating Temperature:** -55°C to +125°C * **Termination:** Dipped epoxy coating with tinned copper leads. --- ## 3. Key Characteristics ### Stability Silver mica capacitors are renowned for their extreme stability. The capacitance value does not drift significantly with time, voltage, or temperature fluctuations. ### Low Loss (High Q Factor) They exhibit very low dissipation factors, making them ideal for high-frequency (RF) applications where energy loss must be minimized. ### High Reliability The epoxy dipping provides excellent moisture and shock resistance, ensuring a long operational life in demanding environments. --- ## 4. Typical Applications * **RF Circuits:** Oscillators, filters, and tuned circuits. * **Pulse Handling:** Snubber circuits and high-speed pulse applications. * **Precision Timing:** Used in circuits requiring tight tolerances and no "memory effect" (dielectric absorption). * **Audio Equipment:** High-end audio filters where signal purity is critical. ---