The part number **DM05CD102JO3-RHR02** refers to a high-precision, high-reliability **Silver Mica Capacitor**. These components are frequently used in RF (Radio Frequency) circuits due to their stability and low loss. --- ### 1. Technical Specifications Based on the standard nomenclature for Cornell Dubilier (CDE) / Cornell style mica capacitors, here is the breakdown of its technical attributes: | Parameter | Specification | Description | | :--- | :--- | :--- | | **Capacitance** | 1000 pF (1.0 nF) | "102" = 10 followed by 2 zeros. | | **Tolerance** | ±5% | Indicated by the "J" character. | | **Voltage Rating** | 500V DC | Standard rating for the DM05 series. | | **Dielectric Material** | Silver Mica | Provides excellent temperature stability. | | **Operating Temp** | -55°C to +125°C | High-grade thermal performance. | | **Case Style** | DM05 (Dipped) | Small resin-coated radial package. | --- ### 2. Key Features * **Low Dissipation Factor:** It exhibits very low energy loss, making it ideal for high-Q circuits. * **Temperature Stability:** Mica is naturally stable; the capacitance does not drift significantly with temperature changes (low ppm/°C). * **Voltage Withstanding:** Designed to handle high-voltage spikes without dielectric breakdown compared to standard ceramic caps. * **RoHS Compliant:** The "RHR02" suffix typically denotes compliance with environmental regulations (Lead-Free/RoHS). --- ### 3. Common Applications Due to its precision and stability, this capacitor is commonly found in: 1. **RF Oscillators:** Maintaining frequency stability. 2. **Filter Networks:** Used in low-pass or band-pass filters where sharp cut-offs are required. 3. **Transmitters:** Handling power and frequency in radio transmission equipment. 4. **Audio Equipment:** High-end audio gear where "clean" signal paths are prioritized. --- ### 4. Part Number Breakdown (Visual) `DM05` (Case Size) - `C` (Char/Temp Coeff) - `D` (Voltage) - `102` (Capacitance) - `J` (Tolerance) - `O3` (Mounting/Lead) - `RHR02` (RoHS/Batch code)