Based on the part number provided, **2-C2A-R** typically refers to a specific series of **High-Precision Thin Film Chip Resistors** or similar passive components, often manufactured by companies like Susumu or various industrial suppliers. ### 1. Component Overview The "2-C2A-R" designation usually identifies a resistor optimized for low noise and high stability in precision circuits. | Specification | Typical Value / Description | | :--- | :--- | | **Component Type** | Thin Film Surface Mount Resistor (SMD) | | **Material** | Metal Film on Ceramic Substrate | | **Resistance Tolerance** | Often $\pm 0.1\%$ or $\pm 0.5\%$ (High Precision) | | **Temperature Coefficient** | Low (typically 25ppm/°C to 50ppm/°C) | | **Termination Style** | Solderable wrap-around (RoHS Compliant) | --- ### 2. Breakdown of the Part Code While exact codes vary by manufacturer, they generally follow this logic: 1. **"2"**: Often refers to the physical size (e.g., 0402 or 0603 metric equivalents). 2. **"C2A"**: Represents the specific series or the TCR (Temperature Coefficient of Resistance) characteristic. 3. **"R"**: Usually signifies that the part is shipped on a **Tape and Reel** for automated pick-and-place assembly. --- ### 3. Key Technical Characteristics * **Precision Performance:** Unlike standard thick film resistors, these parts use thin-film technology to achieve tighter tolerances and better long-term stability. * **Low Noise:** Thin film construction results in significantly lower current noise, making them ideal for audio or measurement applications. * **Environmental Stability:** These parts are designed to withstand moisture and heat without significant drift in resistance values. ### 4. Common Applications * **Medical Electronics:** Precision monitoring equipment. * **Industrial Controls:** Signal conditioning and sensor interfaces. * **Automotive:** Engine control units (ECU) and sensing modules. * **Telecommunications:** High-frequency base station equipment. --- ### 5. Standard Sizing Reference If the "2" indicates the package size, here are the common dimensions: | Package Code | Dimensions (mm) | Dimensions (inches) | | :--- | :--- | :--- | | **0402** | 1.0 x 0.5 | 0.04 x 0.02 | | **0603** | 1.6 x 0.8 | 0.06 x 0.03 | | **0805** | 2.0 x 1.25 | 0.08 x 0.05 |