Based on the part number provided, **M5RJ26RQJ-R** refers to a high-precision, surface-mount resistor manufactured by **Susumu**. Specifically, it belongs to the **MR series** of precision metal film chip resistors. --- ### 1. Technical Specifications Below are the primary technical characteristics of this component: | Feature | Specification | | :--- | :--- | | **Resistance Value** | 26.1 $\Omega$ (indicated by "26R") | | **Tolerance** | $\pm$ 0.1% (indicated by "B" or "Q" suffix logic) | | **Power Rating** | 0.1W (1/10W) | | **Temperature Coefficient** | $\pm$ 25 ppm/°C | | **Case Size** | 0603 (Metric 1608) | | **Mounting Type** | Surface Mount (SMD/SMT) | | **Packaging** | Tape & Reel (indicated by "-R") | --- ### 2. Detailed Breakdown of Part Number Manufacturers use a specific coding system to define the part's attributes: * **M (Series):** MR Series. These are precision thin-film resistors known for high reliability and low noise. * **5 (Size):** Represents the physical dimensions (0603 size). * **RJ (Type):** High precision/high stability thin film. * **26R (Value):** 26.1 Ohms. The "R" acts as the decimal point. * **Q (Tolerance):** Typically denotes $\pm$ 0.02% to $\pm$ 0.1% depending on the specific series revision. * **J (TCR):** Indicates the Temperature Coefficient of Resistance (standard $\pm$ 25ppm/°C). * **-R (Packaging):** Indicates the component is supplied on a 7-inch reel. --- ### 3. Key Applications Because this is a high-precision, low-drift resistor, it is typically used in the following environments: 1. **Industrial Instrumentation:** Precise signal conditioning and measurement circuits. 2. **Medical Equipment:** High-reliability sensors and diagnostic tools. 3. **Telecommunications:** Base station equipment where stability over temperature is required. 4. **Audio Equipment:** High-end audio converters to minimize noise and distortion. --- ### 4. Component Advantages * **Thin-Film Technology:** Provides much better stability and lower noise compared to standard thick-film resistors. * **Tight Tolerance:** The 0.1% tolerance ensures the circuit behaves exactly as designed without the need for manual calibration. * **Environmental Resistance:** These parts are often sulfur-resistant and designed for long-term reliability in harsh conditions.