The part number **441-R372-GR** typically refers to a specific type of passive electronic component, most commonly identified as a **Metal Oxide Film Resistor** distributed by major suppliers like Mouser Electronics (often manufactured by companies like Xicon). --- ## Technical Specifications Based on the standard nomenclature for this series, here are the primary technical characteristics: | Property | Value | | :--- | :--- | | **Component Type** | Metal Oxide Film Resistor | | **Resistance Value** | 3.7 kΩ (Kilohms) | | **Tolerance** | ±2% (indicated by the 'G' in some coding systems) | | **Power Rating** | 1 Watt or 2 Watts (varies by specific series size) | | **Temperature Coefficient** | ±200 ppm/°C | | **Package/Case** | Axial Leaded | | **RoHS Status** | Compliant (indicated by 'R' or 'GR') | --- ## Key Features ### 1. Metal Oxide Construction Metal oxide resistors are created by depositing a thin film of metal oxide onto a ceramic rod. This construction provides: * **High Stability:** Excellent resistance to environmental changes and aging. * **Heat Resistance:** They can operate at higher temperatures compared to standard carbon film resistors. * **Flameproof:** The coating is usually designed to be non-flammable under overload conditions. ### 2. Physical Durability * **Coating:** Usually coated with a silicone or epoxy resin that protects the resistive element from moisture and oxidation. * **Lead Material:** Typically tinned copper leads for easy soldering. ### 3. Electrical Performance * **Low Noise:** Provides a cleaner signal compared to carbon composition resistors. * **High Voltage:** Capable of handling higher surge voltages, making them suitable for power supplies and industrial circuits. --- ## Common Applications * **Power Supplies:** Used as bleeder resistors or in voltage regulation stages. * **Industrial Controls:** Integrated into circuits requiring high reliability and thermal stability. * **Audio Equipment:** Used in power stages where heat dissipation is a concern. * **Automotive:** Suitable for various peripheral electronic modules due to wide operating temperature ranges. ---