The **MCM01-009CD100D-F** is a high-precision, high-reliability mica capacitor manufactured by Cornell Dubilier (CDE). It is part of the MCM01 series, which is specifically designed for high-frequency, high-power, and high-temperature applications. --- ### 1. Key Technical Specifications The part number follows a specific nomenclature that defines its electronic characteristics: | Parameter | Value / Specification | | :--- | :--- | | **Capacitance** | 10 pF (Picofarads) | | **Tolerance** | ±0.5 pF (D tolerance) | | **Voltage Rating** | 500 VDC | | **Dielectric Material** | Silver Mica | | **Operating Temperature** | -55°C to +200°C | | **Termination** | SnAgCu (Lead-Free / RoHS Compliant) | | **Case Type** | Surface Mount (SMD) | --- ### 2. Functional Characteristics * **Stability:** Mica capacitors are renowned for their extreme stability. They exhibit very low drift over time and minimal change in capacitance relative to temperature and voltage. * **High Q Factor:** This part offers low ESR (Equivalent Series Resistance) and low ESL (Equivalent Series Inductance), making it ideal for RF (Radio Frequency) applications where signal loss must be minimized. * **Thermal Performance:** With an upper limit of +200°C, it is suitable for "under-the-hood" automotive sensors, aerospace equipment, and down-hole drilling tools. --- ### 3. Application Areas Because of its high voltage rating and precision, the MCM01-009CD100D-F is typically used in the following circuits: 1. **RF Oscillators and Filters:** Where frequency stability is critical. 2. **High-Power Transmitters:** Used in coupling and decoupling due to the 500V rating. 3. **Medical Imaging:** Used in MRI and ultrasound equipment where low noise and high reliability are required. 4. **Military & Aerospace:** For communication hardware operating in harsh environments. --- ### 4. Physical Dimensions (Approximate) The "01" in the series refers to the physical sizing standard for this product line: * **Length:** ~4.6 mm * **Width:** ~3.3 mm * **Height:** ~2.3 mm