The part number **DM05FC151DO3-SA-R02** corresponds to a high-precision **Mica Capacitor**, typically manufactured by Cornell Dubilier (CDE). These components are known for their extreme stability, high reliability, and low loss at high frequencies. --- ## 1. Technical Specifications | Parameter | Specification | | :--- | :--- | | **Capacitance** | 150 pF (Picofarads) | | **Tolerance** | ±0.5% (Extremely high precision) | | **Voltage Rating** | 300V DC | | **Dielectric Material** | Silver Mica | | **Operating Temperature** | -55°C to +125°C | | **Case Style** | Dipped Mica (Radial Leads) | --- ## 2. Key Characteristics ### A. Stability and Accuracy Silver mica capacitors are among the most stable capacitors available. The **±0.5% tolerance** indicated by the "D" in the part number suggests this part is intended for applications where exact timing or frequency control is critical. ### B. Low Dissipation Factor These parts have a very low dissipation factor, meaning they waste very little energy as heat. This makes them ideal for high-Q (quality factor) circuits. ### C. Temperature Coefficient Mica capacitors exhibit a very low and predictable change in capacitance relative to temperature changes, ensuring the circuit remains "in tune" across various environments. --- ## 3. Typical Applications * **RF Oscillators:** Used to set the frequency in radio frequency transmitters and receivers. * **Filtering Circuits:** High-precision low-pass, high-pass, or band-pass filters. * **Snubber Circuits:** Used in power electronics to suppress voltage spikes. * **Medical & Aerospace:** Where long-term reliability and resistance to environmental degradation are mandatory. --- ## 4. Part Number Breakdown (Partial) | Segment | Meaning | | :--- | :--- | | **DM05** | Case size and style (Dipped Mica size 05) | | **FC** | Temperature characteristic | | **151** | Capacitance value (15 followed by 1 zero = 150pF) | | **D** | Tolerance code (±0.5%) | | **O3** | Voltage rating code (300V) |