The part number **DM05CE151JO3-SA-R02** refers to a high-precision **Mica Capacitor**. These components are known for their extreme stability, low loss, and reliability in RF (Radio Frequency) and precision timing circuits. --- ### 1. Technical Specifications Breakdown The alphanumeric code provides specific details regarding the capacitor's construction and electrical characteristics: | Parameter | Specification | Description | | :--- | :--- | :--- | | **Capacitance** | **150 pF** | The "151" code indicates 15 followed by one zero. | | **Tolerance** | **±5%** | Indicated by the "J" suffix. | | **Voltage Rating** | **300V - 500V DC** | Typical for DM05 series (depends on specific sub-series). | | **Dielectric** | **Silver Mica** | Known for high Q factor and temperature stability. | | **Case Size** | **DM05** | A standard miniature dip-molded package size. | | **Termination** | **Radial Leads** | Designed for Through-Hole mounting on PCBs. | --- ### 2. Key Features * **High Stability:** Mica capacitors exhibit very little change in capacitance over time or varying temperatures. * **Low Dissipation Factor:** They have extremely low losses, making them ideal for high-frequency applications. * **Precision:** The silvering process on the mica sheets allows for very tight tolerances. * **Durability:** The "SA" and "R02" suffixes often denote specific packaging (like Ammo pack or Tape & Reel) and RoHS compliance standards. --- ### 3. Common Applications Due to their high "Q" factor and stability, these parts are typically found in: 1. **RF Oscillators:** Maintaining frequency stability in radio transmitters and receivers. 2. **Filter Networks:** Used in tuned circuits where precise resonance is required. 3. **Pulse Power:** Handling high-speed voltage transitions without degradation. 4. **Calibration Equipment:** Serving as a reference standard in measurement devices. --- ### 4. Part Number Logic (Simplified) `DM05` (Size/Series) + `CE` (Temp Characteristic) + `151` (Value) + `J` (Tolerance) + `O3` (Voltage) + `SA-R02` (Packaging/Suffix)