The **DM05FY151DO3-SA-R02** is a high-precision electronic component belonging to the **Mica Capacitor** family, specifically manufactured by **Cornell Dubilier (CDE)**. These capacitors are known for their extreme stability and low loss at high frequencies. --- ## 1. Technical Specifications | Parameter | Value / Detail | | :--- | :--- | | **Capacitance** | 150 pF (Picofarads) | | **Tolerance** | ±0.5% (Extremely high precision) | | **Voltage Rating** | 500 VDC | | **Dielectric Material** | Silver Mica | | **Operating Temperature** | -55°C to +125°C | | **Package / Case** | Radial Lead (Dipped Mica) | | **Termination** | Standard Leaded | --- ## 2. Key Characteristics ### A. Silver Mica Dielectric Unlike ceramic or electrolytic capacitors, silver mica uses a natural mineral as the dielectric. This results in: * **Zero Voltage Coefficient:** The capacitance does not change regardless of the applied voltage. * **Low Dissipation Factor:** High efficiency with very little energy lost as heat. ### B. Precision and Stability The "D" in the part number often signifies a very tight tolerance (±0.5%). This makes it ideal for timing circuits where frequency drift must be minimized. It also features a very low **Temperature Coefficient**, meaning its value stays consistent even as the device heats up. --- ## 3. Common Applications Due to its high voltage rating and precision, this part is typically used in: 1. **RF Oscillators:** Maintaining a stable frequency in radio transmitters and receivers. 2. **Filter Networks:** Used in high-fidelity audio or high-frequency signal processing where specific cutoff frequencies are required. 3. **Snubber Circuits:** Protecting sensitive components from high-voltage spikes. 4. **Calibration Equipment:** Used as a reference standard in laboratory testing tools. --- ## 4. Part Number Breakdown (Generic) * **DM05:** Refers to the physical case size and style (Dipped Mica, Size 05). * **FY:** Temperature characteristic code. * **151:** Capacitance code (15 followed by one zero = 150pF). * **D:** Tolerance code (±0.5%). * **O3:** Voltage rating code (500V). * **SA-R02:** Specific manufacturer series or packaging suffix (often indicating RoHS compliance).