The part number **441-R359D-GR** typically refers to a high-precision, metal film resistor, often associated with manufacturers like **Xicon** or distributed through major suppliers like Mouser. Below is a detailed breakdown of the electronic specifications and characteristics for this component. ### 1. Technical Specifications | Feature | Specification | | :--- | :--- | | **Component Type** | Fixed Resistor (Metal Film) | | **Resistance Value** | 35.9 Ohms ($\Omega$) | | **Tolerance** | ±0.5% (High Precision) | | **Power Rating** | 1/8 Watt (0.125W) | | **Temperature Coefficient** | ±50 ppm/°C | | **Mounting Type** | Through-Hole | | **Termination Style** | Axial Leaded | | **RoHS Compliance** | Yes (indicated by the "GR" suffix) | --- ### 2. Breakdown of the Part Number The alphanumeric code follows a specific logic used by electronic component manufacturers: * **441**: Often designates the series (Precision Metal Film). * **R359**: Represents the resistance value. The "R" acts as a decimal point in some systems, but here it specifically points to the **35.9 Ohm** value. * **D**: This is the tolerance code. In the EIA standard, "D" stands for **±0.5%**. * **GR**: Usually signifies that the product is "Green" or **RoHS Compliant** (Lead-free). --- ### 3. Key Features & Applications #### Features * **Low Noise:** Metal film technology provides much lower electrical noise compared to carbon composition resistors. * **Stability:** Excellent stability under varying temperature conditions (Low Temperature Coefficient). * **Precision:** The 0.5% tolerance makes it suitable for circuits where exact values are critical for performance. #### Common Applications 1. **Audio Equipment:** Used in signal paths to maintain high fidelity and low distortion. 2. **Instrumentation:** Ideal for bridge circuits and measurement devices where accuracy is paramount. 3. **Medical Electronics:** Used in diagnostic tools requiring stable performance. 4. **Telecommunications:** Employed in filters and line terminations. --- ### 4. Physical Dimensions (Typical) For a 1/8W axial resistor of this type, the physical footprint is generally: * **Body Length:** ~3.3 mm to 3.7 mm * **Body Diameter:** ~1.7 mm to 1.9 mm * **Lead Diameter:** ~0.45 mm