Based on the part number **DM19DA102DO3-SA-R02**, this component belongs to the category of **Surface Mount Device (SMD) multilayer ceramic capacitors (MLCC)** or specialized passive filter components, typically produced by manufacturers like **Delta Electronics** or associated suppliers for telecommunications and power modules. ### Component Specifications Breakdown The alphanumeric code provides specific details regarding the electrical characteristics and physical dimensions: | Segment | Meaning | Detailed Description | | :--- | :--- | :--- | | **DM19** | Series/Case Size | Refers to the physical footprint (often equivalent to a standard metric or imperial size). | | **DA** | Material/Dielectric | Indicates the ceramic dielectric material (e.g., X7R, NPO, or specialized). | | **102** | Capacitance Value | The first two digits are significant; the third is the multiplier. **10 x 10^2 = 1,000pF (1nF)**. | | **D** | Tolerance | Typically represents the precision (e.g., ±0.5pF or a percentage depending on series). | | **O3** | Voltage Rating | Code for the maximum DC working voltage (e.g., 50V, 100V, or higher). | | **SA-R02** | Revision/Packaging | Internal manufacturer revision code and reel/packaging specification. | --- ### Key Technical Attributes 1. **Capacitance**: **1.0 nF (Nanofarad)**. This is a common value used for high-frequency decoupling and noise filtering. 2. **Mounting Type**: **SMT (Surface Mount Technology)**. Designed for automated pick-and-place assembly on PCBs. 3. **Application**: These parts are frequently found in: * DC-DC Converters. * RF Front-end modules. * Signal conditioning circuits. * EMI/RFI suppression. ### Physical Characteristics * **Termination**: Usually features a tin (Sn) over nickel (Ni) barrier to prevent leaching during soldering. * **RoHS Compliance**: The "R" in the suffix often denotes compliance with environmental regulations (Restriction of Hazardous Substances). --- ### Usage Recommendations When replacing or designing with the **DM19DA102DO3-SA-R02**, ensure the following parameters match your circuit requirements: ```json { "parameter": "Value", "nominal_capacitance": "1000 pF", "dielectric_type": "Multilayer Ceramic", "mounting": "SMD/SMT", "package_style": "Tape & Reel (R02)" } ```