The **DM19EC100JO3-SA-R02** is a high-precision, high-reliability electronic component, specifically a **Mica Capacitor**. These components are known for their extreme stability, low loss, and high voltage handling capabilities. Below is a detailed breakdown of its specifications and characteristics. --- ### 1. Technical Specifications | Parameter | Specification | Description | | :--- | :--- | :--- | | **Capacitance** | 10 pF | The storage capacity of the device. | | **Tolerance** | ±5% (J) | The allowable variance from the nominal capacitance. | | **Voltage Rating** | 300V - 500V | Typically rated for high-voltage DC applications. | | **Dielectric Material** | Silver Mica | Provides excellent thermal and electrical stability. | | **Operating Temp** | -55°C to +125°C | Designed for extreme environmental conditions. | | **Case Style** | DM19 (Dipper) | Standardized size for radial leaded mica capacitors. | --- ### 2. Key Features and Construction * **Silver Mica Dielectric:** Unlike ceramic or electrolytic capacitors, mica capacitors use sheets of natural mica coated with silver. This results in minimal aging and high precision. * **High Q Factor:** It offers very low losses (high "Quality" factor), making it ideal for high-frequency (RF) circuits where signal integrity is critical. * **Temperature Coefficient:** Extremely low and predictable capacitance change over temperature fluctuations. * **Non-Inductive:** The internal construction minimizes parasitic inductance, which is vital for high-speed switching and RF tuning. --- ### 3. Common Applications Due to its stability and high-frequency performance, this part is typically found in: 1. **RF Oscillators:** Used to set precise frequencies in transmitters and receivers. 2. **Filter Networks:** Critical for band-pass and low-pass filters in telecommunications. 3. **High-Voltage Couplings:** Used in power supplies and medical electronics where voltage spikes are common. 4. **Calibration Equipment:** Employed as a reference standard in laboratory testing gear. --- ### 4. Part Number Breakdown (Generic) * **DM19:** Refers to the physical size/housing (standard dipper mica size). * **EC:** Refers to the characteristic (Temperature coefficient/drift). * **100:** The capacitance value code (10 with 0 zeros = 10 pF). * **J:** Tolerance code (±5%). * **O3:** Voltage or lead configuration indicator. * **SA-R02:** Specific manufacturing suffix or RoHS compliance indicator.