The **MA207-R100-T** is a precision metal film resistor. Components in this series are designed for applications requiring high stability, low noise, and tight tolerances, often used in precision instrumentation and audio circuits. --- ### 1. Technical Specifications Below are the primary electrical characteristics for the **MA207-R100-T**: | Parameter | Specification | | :--- | :--- | | **Resistance Value** | 0.1 $\Omega$ (R100) | | **Power Rating** | 0.25 Watts (1/4W) at 70°C | | **Tolerance** | $\pm 0.01\%$ to $\pm 1\%$ (Specific to the "T" suffix) | | **Temperature Coefficient (TCR)** | $\pm 15$ to $\pm 50$ ppm/°C | | **Package Type** | Axial Leaded (Through-hole) | | **Technology** | Metal Film (Precision) | --- ### 2. Part Number Breakdown Understanding the nomenclature helps identify the exact capabilities of the component: * **MA207**: Refers to the series/body size (Equivalent to standard 0207 size, which is approximately 6.3mm in length). * **R100**: Denotes the resistance. The "R" acts as a decimal point. `R100` = $0.100 \Omega$. * **T**: Usually indicates the **Temperature Coefficient** or the **Packaging Type** (Taped and Reeled). In precision resistors, "T" often refers to a specific TCR class or Taping. --- ### 3. Key Electronic Characteristics * **Low Ohmic Value:** At $0.1 \Omega$, this resistor is frequently used for **Current Sensing**. By measuring the voltage drop across this resistor, a circuit can determine the amount of current flowing through a branch. * **High Stability:** Metal film construction ensures that the resistance value remains constant despite changes in environmental temperature or aging. * **Low Noise:** Metal film resistors produce significantly less thermal noise compared to carbon composition resistors, making them ideal for high-fidelity audio or sensitive sensor interfaces. --- ### 4. Common Applications 1. **Current Shunt:** Monitoring power supply output. 2. **Precision Voltage Dividers:** When used in conjunction with other high-precision resistors. 3. **Bridge Circuits:** Used in scale weighing or pressure sensing equipment. 4. **Feedback Loops:** In operational amplifier (Op-Amp) circuits to set precise gain.